List of non-periodic comets
Encyclopedia
Non-periodic comets are comet
Comet
A comet is an icy small Solar System body that, when close enough to the Sun, displays a visible coma and sometimes also a tail. These phenomena are both due to the effects of solar radiation and the solar wind upon the nucleus of the comet...

s that do not have confirmed observations at more than one perihelion passage, and thus generally have orbital periods of 200 years or more. They include single-apparition comets that pass through the Inner Solar System only once. They are on unstable near-parabolic orbits that will not return to the vicinity of the Sun
Sun
The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...

 for hundreds, thousands, or even millions of years – if ever. (Some use the term non-periodic comet to refer exclusively to comets that will never return to the vicinity of the Sun.) Comets not expected to return to the inner Solar System include C/1980 E1
C/1980 E1
C/1980 E1 is a non-periodic comet discovered by Edward L. G. Bowell on February 11, 1980. C/1980 E1 is leaving the solar system on a hyperbolic trajectory with a higher velocity than any other object ever observed....

, C/2000 U5
C/2000 U5
C/2000 U5 is a single-apparition comet discovered on October 29, 2000, by Lincoln Near-Earth Asteroid Research. The comet has an observation arc of 362 days allowing a good estimate of the orbit...

, C/2001 Q4 (NEAT)
C/2001 Q4 (NEAT)
C/2001 Q4 is a comet with an unusual, almost perpendicular retrograde orbit which brings it into the inner solar system by a deeply southward path. It initially emerged from its remote home spending most of its time near the south celestial pole...

, C/2009 R1
C/2009 R1
C/2009 R1, one of more than fifty comets known as Comet McNaught, is a non-periodic comet discovered by British-Australian astronomer Robert H. McNaught on September 9, 2009, using the Uppsala Southern Schmidt Telescope at Siding Spring Observatory in New South Wales, Australia. The discovery was...

, C/1956 R1, and C/2007 F1 (LONEOS)
C/2007 F1 (LONEOS)
C/2007 F1 is a hyperbolic comet discovered on March 19, 2007 as part as the Lowell Observatory Near Earth Object Search . The comet reached perihelion, or closest approach to the sun on October 28, 2007....

.

The official names of non-periodic comets begin with a "C"; comets that have been lost or disappeared have names that begin with a "D".

The following is a partial list of non-periodic comets that have appeared in the Solar System
Solar System
The Solar System consists of the Sun and the astronomical objects gravitationally bound in orbit around it, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago. The vast majority of the system's mass is in the Sun...

:

After 1910

Comet Discoverer(s) or Namesake, Date of discovery
Comet Arend–Roland (C/1956 R1, 1957 III, 1956h) Arend
Sylvain Julien Victor Arend
Sylvain Julien Victor Arend was a Belgian astronomer born in Robelmont, Luxembourg . His main interest was astrometry.Together with Georges Roland, he discovered the bright comet C/1956 R1...

 and Roland, November 8, 1956
C/1989 X1 (Austin) (1990 V, 1989c1) Austin, December 6, 1989
Comet Beljawsky (C/1911 S3, 1911 IV, 1911g) Beljawsky, September 29, 1911
Comet Bennett
Comet Bennett
Comet Bennett, formally known as C/1969 Y1 , was one of two brilliant comets to grace the 1970s, along with Comet West...

 (C/1969 Y1, 1970 II, 1969i)
Bennett, December 28, 1969
C/2007 W1 (Boattini)  Andrea Boattini
Andrea Boattini
Andrea Boattini is an Italian astronomer, a prolific discoverer of asteroids and comets.After developing a growing interest in minor planets, he graduated in 1996 from the University of Bologna with a thesis on near-Earth objects...

, November 20, 2007
C/1980 E1
C/1980 E1
C/1980 E1 is a non-periodic comet discovered by Edward L. G. Bowell on February 11, 1980. C/1980 E1 is leaving the solar system on a hyperbolic trajectory with a higher velocity than any other object ever observed....

 (Bowell)
Edward L. G. Bowell
Edward L. G. Bowell
Edward L. G. Bowell , known as "Ted", is an American astronomer. Bowell was educated at Emanuel School London, University College, London, and the Université de Paris....

, February 11, 1980. Most hyperbolic
Hyperbolic trajectory
In astrodynamics or celestial mechanics a hyperbolic trajectory is a Kepler orbit with the eccentricity greater than 1. Under standard assumptions a body traveling along this trajectory will coast to infinity, arriving there with hyperbolic excess velocity relative to the central body. Similarly to...

 comet known.
Comet Bradfield (C/2004 F4) Bradfield
William A. Bradfield
William A. Bradfield is one of the best known comet hunters in the world.He was born in New Zealand and lives in Australia. He is not a professional astronomer. He discovered his first comet in 1972. The comet C/1972 E1 has only his name, as the other 17 comets he found with a six-inch telescope....

, April 12, 2004
Comet Brooks
C/1911 O1
C/1911 O1 , also designated 1911 V or Comet Brooks, was a bright comet discovered in July 1911 by astronomer William Robert Brooks.It is notable for becoming a bright naked-eye object of second magnitude, with a narrow straight tail of up to thirty degrees in length and a distinct blue colour; this...

 (C/1911 O1, 1911 V, 1911c)
Brooks
William Robert Brooks
William Robert Brooks was a British-born American astronomer, mainly noted as being one of the most prolific discoverers of new comets of all time, second only to Jean-Louis Pons...

, July 21, 1911
C/1999 F1
C/1999 F1
C/1999 F1 is a long-period comet discovered on March 23, 1999, by the Catalina Sky Survey.The comet has an observation arc of 2,360 days allowing a good estimate of the orbit...

 (Catalina)
Catalina Sky Survey
Catalina Sky Survey
Catalina Sky Survey is a project to discover comets and asteroids, and to search for Near-Earth objects. More specifically, to search for potentially hazardous asteroids , that may pose a threat of impact.-Mission:...

, March 23, 1999
Comet de Kock–Paraskevopoulos (C/1941 B2, 1941 IV, 1941c) de Kock, January 15, 1941 and Paraskevopoulos, January 23, 1941 Independently discovered by 7 observers from South America.
Eclipse Comet
C/1948 V1
The Eclipse Comet of 1948, formally known as C/1948 V1, was an especially bright comet discovered during a solar eclipse on November 1, 1948...

 (C/1948 V1, 1948 XI, 1948l)
First spotted during the Nairobi
Nairobi
Nairobi is the capital and largest city of Kenya. The city and its surrounding area also forms the Nairobi County. The name "Nairobi" comes from the Maasai phrase Enkare Nyirobi, which translates to "the place of cool waters". However, it is popularly known as the "Green City in the Sun" and is...

 total solar eclipse
Solar eclipse
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and the Earth, and the Moon fully or partially blocks the Sun as viewed from a location on Earth. This can happen only during a new moon, when the Sun and the Moon are in conjunction as seen from Earth. At least...

 of November 1, 1948 (magnitude about −2)
Comet Elenin
C/2010 X1
Comet C/2010 X1 is a long-period comet discovered by Russian amateur astronomer Leonid Elenin on December 10, 2010, through remote control of the International Scientific Optical Network's robotic observatory near Mayhill, New Mexico, U.S.A...

 (C/2010 X1)
Leonid Elenin
Leonid Elenin
Leonid Vladimirovich Elenin is a Russian amateur astronomer working with the ISON-NM observatory via the International Sceintific Optical Network which is the first Russian remote observatory in the West....

, December 10, 2010
Comet Hale–Bopp (C/1995 O1) Hale
Alan Hale (astronomer)
-Biography:Hale was born in Tachikawa, Japan in 1958, but he grew up in Alamogordo, New Mexico. He served in the United States Navy from 1976 to 1983, graduating from the U.S. Naval Academy in 1980. His next job was at the Jet Propulsion Laboratory where he worked until 1986. While at the JPL, he...

 and Bopp
Thomas Bopp
Thomas J. Bopp D.Sc is best known as co-discoverer of Comet Hale-Bopp in 1995. He was a manager at a construction materials factory and an amateur astronomer at the time of the comet discovery. It was the first comet he had observed....

, July 23, 1995 one of only five comets known to have had a negative absolute magnitude
Absolute magnitude
Absolute magnitude is the measure of a celestial object's intrinsic brightness. it is also the apparent magnitude a star would have if it were 32.6 light years away from Earth...

 (−2.7)
Comet Humason
Comet Humason
----Comet Humason, formally designated C/1961 R1 , was a non-periodic comet discovered by Milton L. Humason on September 1, 1961. Its perihelion was well beyond the orbit of Mars, at 2.133 AU...

 (C/1961 R1, 1962 VIII, 1961e)
Humason
Milton L. Humason
Milton Lasell Humason was an American astronomer. He was born in Dodge Center, Minnesota.He dropped out of school and had no formal education past the age of 14. Because he loved the mountains, and Mount Wilson in particular, he became a "mule skinner" taking materials and equipment up the...

, September 1, 1961
Comet Hyakutake
Comet Hyakutake
Comet Hyakutake is a comet, discovered on January 31, 1996, which passed very close to Earth in March of that year. It was dubbed The Great Comet of 1996; its passage near the Earth was one of the closest cometary approaches of the previous 200 years. Hyakutake appeared very bright in the night...

 (C/1996 B2)
Hyakutake
Yuji Hyakutake
was a Japanese amateur astronomer who discovered Comet Hyakutake on January 30, 1996 while using 25×150 binoculars.His only other discovery was comet C/1995 Y1. The media has stated that Hyakutake became interested in astronomy after seeing Comet Ikeya-Seki .He died in 2002, at age 51, of an...

, January 30, 1996
Comet Ikeya–Seki (C/1965 S1, 1965 VIII, 1965f) Ikeya
Kaoru Ikeya
is a Japanese amateur astronomer who discovered a number of comets.As a young adult, Ikeya lived near Lake Hamana and worked for a piano factory. During his employment there, he made his first discovery in 1963 with an optical telescope he built himself within his low budget...

, Seki
Tsutomu Seki
is a Japanese astronomer, born in Kōchi, Japan.He has discovered a number of comets, including the celebrated bright C/1965 S1 .He has also discovered a large number of asteroids, including the Amor asteroid 1992 JE and the Trojan asteroid .Many of his discoveries are named after famous sites in...

, September 18, 1965
Comet Kohoutek
Comet Kohoutek
Comet Kohoutek, formally designated C/1973 E1, 1973 XII, and 1973f, was first sighted on 7 March 1973 by Czech astronomer Luboš Kohoutek. It attained perihelion on 28 December that same year....

 (C/1973 E1, 1973 XII, 1973f)
Kohoutek
Luboš Kohoutek
Luboš Kohoutek is a Czech astronomer.Kohoutek has been interested with astronomy since high school. He studied physics and astronomy at universities in Brno and Prague...

, March 7, 1973
C/2000 U5
C/2000 U5
C/2000 U5 is a single-apparition comet discovered on October 29, 2000, by Lincoln Near-Earth Asteroid Research. The comet has an observation arc of 362 days allowing a good estimate of the orbit...

 (LINEAR)
LINEAR
Lincoln Near-Earth Asteroid Research
The Lincoln Near-Earth Asteroid Research project is a cooperative project between the United States Air Force, NASA, and MIT's Lincoln Laboratory for the systematic discovery and tracking of near-Earth asteroids. LINEAR was responsible for the majority of asteroid detections since 1998 until...

, October 29, 2000
Comet LONEOS
C/2007 F1 (LONEOS)
C/2007 F1 is a hyperbolic comet discovered on March 19, 2007 as part as the Lowell Observatory Near Earth Object Search . The comet reached perihelion, or closest approach to the sun on October 28, 2007....

 (C/2007 F1)
LONEOS
Lowell Observatory Near-Earth-Object Search
Lowell Observatory Near-Earth-Object Search ' was a project designed to discover asteroids and comets that orbit near the Earth. The project, funded by NASA, was directed by Dr. Ted Bowell of Lowell Observatory in Flagstaff, Arizona...

, March 19, 2007
Comet Lulin (C/2007 N3) Ye Quanzhi and Lin Chi-Sheng, Lulin Observatory
Lulin Observatory
Lulin Observatory is an astronomical observatory operated by the Institute of Astronomy, National Central University in Taiwan.It is located at the summit of Mount Lulin, on the border of Chiayi County and Nantou County, near Yushan National Park...

, July 11, 2007
Comet Machholz
Comet Machholz
Comet Machholz, formally designated C/2004 Q2, is a long-period comet discovered by Donald Machholz on August 27, 2004.It reached naked eye brightness in January 2005...

 (C/2004 Q2)
Machholz
Donald Machholz
Donald Edward Machholz, born October 7, 1952 in Portsmouth, Virginia, is an American amateur astronomer from Colfax, California.He is the most successful living visual comet hunter in the United States, being...

, August 27, 2004
C/2008 Q1 (Matičič) Črni Vrh Observatory
Crni Vrh Observatory
The Črni Vrh Observatory is located in Western Slovenia, close to the settlement Črni Vrh, near the town of Idrija. The current observatory was built in 1985, and is at an altitude of 730 metres...

 (the first comet discovered in Slovenia, by Stanislav Matičič)
C/2006 P1 (McNaught) Robert McNaught, August 7, 2006 (max. brightness −5m)
C/2009 R1
C/2009 R1
C/2009 R1, one of more than fifty comets known as Comet McNaught, is a non-periodic comet discovered by British-Australian astronomer Robert H. McNaught on September 9, 2009, using the Uppsala Southern Schmidt Telescope at Siding Spring Observatory in New South Wales, Australia. The discovery was...

 (McNaught)
Robert McNaught, September 9, 2009
Comet McNaught–Russell (C/1993 Y1, 1994 XI, 1993v) Robert H. McNaught
Robert H. McNaught
Robert H. McNaught is a Scottish-Australian astronomer at the Research School of Astronomy and Astrophysics of the Australian National University. He has collaborated with David J. Asher of the Armagh Observatory....

, Kenneth S. Russell December 17, 1993
Comet Mrkos (C/1957 P1, 1957 V, 1957d) Mrkos
Antonín Mrkos
Antonín Mrkos was a Czech astronomer, born in Střemchoví, Czechoslovakia.- Biography :Mrkos entered the University in Brno in 1938. His studies were interrupted by the onset of World War II, and in 1945 he became a staff member at the Skalnaté Pleso Observatory in Slovakia...

, July 29, 1957
Comet NEAT
C/2001 Q4 (NEAT)
C/2001 Q4 is a comet with an unusual, almost perpendicular retrograde orbit which brings it into the inner solar system by a deeply southward path. It initially emerged from its remote home spending most of its time near the south celestial pole...

 (C/2001 Q4)
NEAT
Near Earth Asteroid Tracking
Near-Earth Asteroid Tracking is a program run by NASA and Jet Propulsion Laboratory to discover near-Earth objects. The NEAT project began in December 1995 and ran until April 2007.-History:...

, August 24, 2001
Comet Pojmański
Comet Pojmanski
Comet Pojmański is a non-periodic comet discovered by Grzegorz Pojmański on January 2, 2006 and formally designated C/2006 A1. Pojmański discovered the comet at Warsaw University Astronomic Observatory using the Las Campanas Observatory in Chile as part of the All Sky Automated Survey...

 (C/2006 A1)
Pojmański
Grzegorz Pojmanski
Dr Grzegorz Pojmański , Polish astronomer, worker of Warsaw University Astronomical Observatory, Poland. In 1997 Pojmański together with professor Bohdan Paczyński implemented the project All Sky Automated Survey . With the ASAS Alert System Pojmański discovered two new comets: C/2004 R2 and...

, January 2, 2006
Comet Seki–Lines (C/1962 C1, 1962 III, 1962c, Reitberg–Blakesen, Khokhlov ) Seki
Tsutomu Seki
is a Japanese astronomer, born in Kōchi, Japan.He has discovered a number of comets, including the celebrated bright C/1965 S1 .He has also discovered a large number of asteroids, including the Amor asteroid 1992 JE and the Trojan asteroid .Many of his discoveries are named after famous sites in...

 and Lines
Richard D. Lines
Richard D. Lines was an American amateur astronomer. He started as a deep-sky observer and photographer, but later specialized in photometry of variable stars. He was a member of the American Association of Variable Star Observers and International Amateur-Professional Photoelectric Photometry...

, February 4, 1962
C/2007 Q3 (Siding Spring) Donna Burton at Siding Spring Observatory
Siding Spring Observatory
Siding Spring Observatory near Coonabarabran, New South Wales, Australia, part of the Research School of Astronomy & Astrophysics at the Australian National University , incorporates the Anglo-Australian Telescope along with a collection of other telescopes owned by the Australian National...

, August 25, 2007
Comet Skjellerup–Maristany (C/1927 X1, 1927 IX, 1927k) Skjellerup
John Francis Skjellerup
John Francis Skjellerup was an Australian who spent about a decade working as a telegraphist in South Africa, and was an astronomer....

, November 28, 1927, and Maristany, December 6, 1927
Comet Skorichenko–George (C/1989 Y1, 1990 VI, 1989e1) Skorichenko and George
Doug George
Doug George is a NASCAR driver and mechanic. Currently, he is the crew chief of the #51 NOS/Miccosukee Gambling Toyota Tundra driven by Kyle Busch and Brian Ickler in the Craftsman Truck Series. He has made a total of 58 starts in NASCAR.He began racing professionally in the 1980s, driving for his...

, December 17, 1989
Great Southern Comet (C/1947 X1, 1947 XII, 1947n) December 7, 1947
C/2006 M4 (SWAN)  Matson and Mattiazzo, June 20, 2006
C/2000 W1
C/2000 W1
C/2000 W1 is a long-period comet discovered on November 18, 2000, by Syogo Utsunomiya and Albert F. Jones.The comet has an observation arc of 58 days allowing a reasonable estimate of the orbit...

 (Utsunomiya–Jones)
Syogo Utsunomiya and Albert F. Jones, November 18, 2000
Comet West
Comet West
Comet West formally designated C/1975 V1, 1976 VI, and 1975n, was a spectacular comet, sometimes considered to qualify for the status of "great comet".- Discovery :...

 (C/1975 V1, 1976 VI, 1975n)
West
Richard Martin West
Richard Martin West is a Danish astronomer working at the European Southern Observatory .He discovered numerous comets, including the spectacular "Comet West" and the periodic comets 76P/West-Kohoutek-Ikemura and 123P/West-Hartley.He also discovered a number of asteroids, including the Trojan...

, August 10, 1975
Comet White–Ortiz–Bolelli (C/1970 K1, 1970 VI, 1970f) White, May 18, 1970, Ortiz, May 21, 1970, and Bolelli, May 22, 1970
Comet Wilson–Hubbard (C/1961 O1, 1961 V, 1961d, Drakesen, Portlock–Weinberg) Wilson and Hubbard, July 23, 1961
Comet Yi–SWAN (C/2009 F6) Yi Dae am and SOHO of Robert D. Matson, March 26, 2009 (maximum apparent magnitude +8.5m)
Comet Zhu–Balam (C/1997 L1) Zhu (June 3, 1997) and Balam
David D. Balam
David D. Balam is a Canadian astronomer and a research associate with University of Victoria's Department of Physics and Astronomy, in Victoria, British Columbia. Specializing in the search for Near-Earth objects, Balam is one of the world's most prolific contributors to this research; only two...

 (June 8, 1997 http://www.astro.uvic.ca/media/ring/6.htm)

1910 and earlier (chronological)

Comet Discoverer(s) or Namesake, Date of discovery
C/−43 K1 (Comet Caesar) May 18, 44 BC (China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

); alternative names in Roman antiquity: sidus Iulium or Caesaris astrum; absolute magnitude: −4.0, one of only five comets known to have had a negative absolute magnitude and possibly the brightest daylight comet in recorded history
X/1106 C1
X/1106 C1
X/1106 C1, also known as the Great Comet of 1106, was a Great Comet that appeared on February 2, 1106, and was observed across the world from the beginning of February through to mid-March. It was recorded by astronomers in Wales, England, Japan, Korea, China and Europe. It was observed to split...

 (Great Comet of 1106)
February 2, 1106. One of the Kreutz Sungrazers
Kreutz Sungrazers
The Kreutz Sungrazers are a family of sungrazing comets, characterized by orbits taking them extremely close to the Sun at perihelion. They are believed to be fragments of one large comet that broke up several centuries ago and are named for German astronomer Heinrich Kreutz, who first...

, split in two.
C/1577 V1 (Great Comet of 1577
Great Comet of 1577
The Great Comet of 1577 was a comet that passed close to Earth during the year 1577 AD. It was viewed by people all over Europe, including famous Danish astronomer Tycho Brahe. From his observations of the comet, Brahe was able to discover that comets and similar objects travel above the Earth's...

) (1577 I)
November 1, 1577 absolute magnitude −1.8, one of only five comets known to have had a negative absolute magnitude
C/1652 Y1
C/1652 Y1
C/1652 Y1 was a naked-eye comet observed, amongst others by Jan van Riebeeck. First spotted on December 16, 1652, by Dutch observers at Pernambuco . the comet was about 280 A.U. from the Sun ....

 
van Riebeeck
Jan van Riebeeck
Johan Anthoniszoon "Jan" van Riebeeck was a Dutch colonial administrator and founder of Cape Town.-Biography:...

, 17 December 1652 (Cape Town
Cape Town
Cape Town is the second-most populous city in South Africa, and the provincial capital and primate city of the Western Cape. As the seat of the National Parliament, it is also the legislative capital of the country. It forms part of the City of Cape Town metropolitan municipality...

, South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

)
Kirch's Comet (C/1680 V1
C/1680 V1
C/1680 V1, also called the Great Comet of 1680, Kirch's Comet, and Newton's Comet, has the distinction of being the first comet discovered by telescope. Discovered by Gottfried Kirch on 14 November 1680, New Style, it became one of the brightest comets of the 17th century--reputedly visible even in...

)
Kirch
Gottfried Kirch
Gottfried Kirch was a German astronomer. The son of a shoemaker in Guben, Electorate of Saxony, Kirch first worked as a calendar-maker in Saxonia and Franconia. He began to learn astronomy in Jena, and studied under Hevelius in Danzig...

, November 14, 1680 (first telescopic discovery of a comet)
C/1686 R1  van der Stel
Simon van der Stel
Simon van der Stel was the last Commander and first Governor of the Cape Colony, the Dutch settlement at the Cape of Good Hope in South Africa.-Background:...

, August 12, 1686 (Cape Town
Cape Town
Cape Town is the second-most populous city in South Africa, and the provincial capital and primate city of the Western Cape. As the seat of the National Parliament, it is also the legislative capital of the country. It forms part of the City of Cape Town metropolitan municipality...

, South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

)
C/1689 X1  van der Stel
Simon van der Stel
Simon van der Stel was the last Commander and first Governor of the Cape Colony, the Dutch settlement at the Cape of Good Hope in South Africa.-Background:...

, November 24, 1689 (Cape Town
Cape Town
Cape Town is the second-most populous city in South Africa, and the provincial capital and primate city of the Western Cape. As the seat of the National Parliament, it is also the legislative capital of the country. It forms part of the City of Cape Town metropolitan municipality...

, South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

)
C/1702 H1
C/1702 H1
C/1702 H1 is a comet discovered by Francesco Bianchini and Giacomo Filippo Maraldi on April 20, 1702.-1702 apparition:Bianchini and Maraldi discovered the comet in the morning sky on April 20, 1702...

 
Francesco Bianchini
Francesco Bianchini
Francesco Bianchini was an Italian philosopher and scientist. He worked for the curia of three popes, including being camiere d`honore of Clement XI, and secretary of the commission for the reform of the calendar, working on the method to calculate the astronomically correct date for Easter in a...

 & Giacomo Filippo Maraldi
Giacomo F. Maraldi
Giacomo Filippo Maraldi was an French-Italian astronomer and mathematician. His name is also given as Jacques Philippe Maraldi....

Comet of 1729 (C/1729 P1, 1729, Comet Sarabat) Sarabat
Nicolas Sarrabat
Fr. Nicolas Sarrabat or Sarabat , also known as Nicolas Sarrabat de la Baisse, was an eighteenth-century French mathematician and scientist. He was born in Lyon, the son of the painter Daniel Sarrabat , and the nephew of engraver Isaac Sarrabat...

, August 1, 1729 absolute magnitude −3.0, one of only five comets known to have had a negative absolute magnitude
C/1743 X1 (1744, Comet Klinkenberg–de Chéseaux) Klinkenberg, December 9, 1743, and de Chéseaux, December 13, 1743 (orbit computer) became brighter than Jupiter and in March 1744 exhibited no less than six tails
C/1746 P1 (1747, Comet de Chéseaux) de Chéseaux, August 13, 1746 absolute magnitude −0.5, one of only five comets known to have had a negative absolute magnitude
Great Comet of 1760 (C/1760 A1
C/1760 A1
The Great Comet of 1760 was first seen on 7 January 1760 by Abbe Chevalier at Lisbon. Charles Messier also spotted the comet on 8 January 1760 in Paris, by the sword of Orion. The comet was his third discovery and the comet was the 51st to have a calculated orbit...

, 1759 III, Parisian Comet)
January 7, 1760, approached Jupiter
Jupiter
Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with mass one-thousandth that of the Sun but is two and a half times the mass of all the other planets in our Solar System combined. Jupiter is classified as a gas giant along with Saturn,...

 to within 0.054 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

 in 1758 http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1966AcA....16..197S&db_key=AST&data_type=HTML&format=
Great Comet of 1771 (C/1771 A1, 1770 II) January 9, 1771
Great Comet of 1783 (C/1783 X1, 1784) de la Nux, December 15, 1783
Great Comet of 1807 (C/1807 R1, 1807) Giovanni, September 9, 1807
Great Comet of 1811 (C/1811 F1
C/1811 F1
The Great Comet of 1811, formally designated C/1811 F1, is a comet that was visible to the naked eye for around 260 days, a record it held until the appearance of Comet Hale-Bopp in 1997...

)
Flaugergues
Honoré Flaugergues
Honoré Flaugergues was a French astronomer.....

, March 25, 1811
Great Comet of 1819 (C/1819 N1, 1819 II, Comet Tralles) Tralles
Johann Georg Tralles
Johann George Tralles was a German mathematician and physicist.He was born in Hamburg, Germany, and was educated at the University of Göttingen beginning in 1783. He became a professor at the University of Bern in 1785...

, July 1, 1819
Great Comet of 1823
Great Comet of 1823
The Great Comet of 1823, also designated C/1823 Y1 or Comet De Bréauté-Pons, was a bright comet visible during the last month of 1823 and the first few months of 1824....

 (C/1823 Y1, 1823)
December 24, 1823
Comet Pons (C/1825 N1, 1825 IV) Pons
Jean-Louis Pons
Jean-Louis Pons was a French astronomer.Despite humble beginnings and being self-taught, he went on to become the greatest visual comet discoverer of all time: between 1801 and 1827 Pons discovered thirty-seven comets, more than any other person in history.- Early life :Pons was born at Peyre,...

, July 18, 1825
Great Comet of 1830 (C/1830 F1, 1830 I) Faraguet, March 16, 1830 (Mauritius
Mauritius
Mauritius , officially the Republic of Mauritius is an island nation off the southeast coast of the African continent in the southwest Indian Ocean, about east of Madagascar...

) and Fallows, March 20, 1830 (Cape Town
Cape Town
Cape Town is the second-most populous city in South Africa, and the provincial capital and primate city of the Western Cape. As the seat of the National Parliament, it is also the legislative capital of the country. It forms part of the City of Cape Town metropolitan municipality...

, South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

). H. C. Dwerhagen, March 18, 1830 (Buenos Aires
Buenos Aires
Buenos Aires is the capital and largest city of Argentina, and the second-largest metropolitan area in South America, after São Paulo. It is located on the western shore of the estuary of the Río de la Plata, on the southeastern coast of the South American continent...

)
Great Comet of 1831 (C/1831 A1, 1830 II) Herapath
John Herapath
John Herapath was an English physicist who gave a partial account of the kinetic theory of gases in 1820 though it was neglected by the scientific community at the time....

, January 7, 1831 (1)
Great March Comet of 1843 (C/1843 D1, 1843 I) February 5, 1843
Great Comet of 1844 (C/1844 Y1, 1844 III) December 17, 1844
Great June Comet of 1845 (C/1845 L1, 1845 III) June 2, 1845
Comet Hind (C/1847 C1, 1847 I) Hind
John Russell Hind
John Russell Hind FRS was an English astronomer.- Life and work :John Russell Hind was born in 1823 in Nottingham, the son of lace manufacturer John Hind, and was educated at Nottingham High School...

, February 6, 1847
Miss Mitchell's Comet (C/1847 T1
C/1847 T1
Miss Mitchell's Comet was a comet that was discovered by American astronomer Maria Mitchell. It was at first credited to Francesco de Vico who, although he discovered it two days later than she, was the first to report it in Europe, since he was observing from Rome...

, 1847 VI)
Mitchell
Maria Mitchell
Maria Mitchell was an American astronomer, who in 1847, by using a telescope, discovered a comet which as a result became known as the "Miss Mitchell's Comet". She won a gold medal prize for her discovery which was presented to her by King Frederick VII of Denmark. The medal said “Not in vain do...

, October 1, 1847
Comet Klinkerfues (C/1853 L1, 1853 III) Klinkerfues
Ernst Friedrich Wilhelm Klinkerfues
Ernst Friedrich Wilhelm Klinkerfues was a German astronomer.-Life:Klinkerfues was born in Hofgeismar, the son of army doctor Johann Reinhard Klinkerfues and his wife Sabine. After the early death of his parents, he was brought up by relatives, and after attending high school qualified as a...

, June 11, 1853
Great Comet of 1854 (C/1854 F1, 1854 II) March 23, 1854
Comet Donati
Comet Donati
Comet Donati, or Donati's Comet, formally designated C/1858 L1 and 1858 VI, is a long-period comet named after the Italian astronomer Giovanni Battista Donati who first observed it on June 2, 1858. After the Great Comet of 1811, it was the most brilliant comet that appeared in the 19th century. It...

 (C/1858 L1, 1858 VI)
Donati
Giovanni Battista Donati
Giovanni Battista Donati ; 16 December 1826, Pisa, Italy – 20 September 1873, Florence, Italy) was an Italian astronomer.Donati graduated from the university of his native city, Pisa, and afterwards joined the staff of the Observatory of Florence in 1852...

, June 2, 1858
Great Comet of 1860 (C/1860 M1, 1860 III) June 18, 1860
Comet Thatcher (C/1861 G1) A. E. Thatcher of New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

, April 5, 1861
Great Comet of 1861 (C/1861 J1
C/1861 J1
The Great Comet of 1861 formally designated C/1861 J1 and 1861 II, is a long-period comet that was visible to the naked eye for approximately 3 months...

, 1861 II)
Tebbutt
John Tebbutt
John Tebbutt was an Australian astronomer, credited with discovering the "Great Comet of 1861" .-Early life:...

, May 13, 1861
Great Southern Comet of 1865 (C/1865 B1, 1865 I) January 17, 1865
Comet Coggia (C/1874 H1, 1874 III) Coggia
Jérôme Eugène Coggia
Jérôme Eugène Coggia was a 19th-century French astronomer.Working in Marseille, he discovered a number of comets, including the bright "Coggia's Comet" . The periodic comet 27P/Crommelin was previously called "Comet Pons-Coggia-Winnecke-Forbes". In 1916 he was awarded the Lalande Prize of the...

, April 17, 1874
Great Southern Comet of 1880 (C/1880 C1, 1880 I) February 1, 1880
Great Comet of 1881 (C/1881 K1, 1881 III, 1881b) Tebbutt
John Tebbutt
John Tebbutt was an Australian astronomer, credited with discovering the "Great Comet of 1861" .-Early life:...

, May 22, 1881. Independent discovery for W. G. Davis, May 25, 1881.
Comet Wells (C/1882 F1, 1882 I, 1882a) Wells, March 18, 1882
Great September Comet of 1882 (C/1882 R1, 1882 II, 1882b) September 1, 1882; the first astronomer to see it was Finlay
William Henry Finlay
William Henry Finlay was a South African astronomer. He was First Assistant at the Cape Observatory from 1873 to 1898. He discovered the periodic comet 15P/Finlay...

. It reached an estimated magnitude −17 (C/1882 R1, C/1945 X1 (du Toit) and C/1965 S1 may be the fragments of X/1106 C1
X/1106 C1
X/1106 C1, also known as the Great Comet of 1106, was a Great Comet that appeared on February 2, 1106, and was observed across the world from the beginning of February through to mid-March. It was recorded by astronomers in Wales, England, Japan, Korea, China and Europe. It was observed to split...

). Possible first discoverer B. A. Gould
Great Southern Comet of 1887
Great Southern Comet of 1887
The Great Southern Comet of 1887, or C/1887 B1 using its International Astronomical Union designation, was a bright comet seen from the Southern Hemisphere during January 1887. Later calculations indicated it to be part of the Kreutz Sungrazing group....

 (C/1887 B1, 1887 I, 1887a)
Thome
John M. Thome
John Macon Thome was an American-Argentine astronomer. Some sources say John Macom Thome. He is sometimes known as Juan M...

, January 18, 1887, "The Headless Wonder"
Great Comet of 1901 (C/1901 G1, 1901 I, 1901a) April 23, 1901
Great January Comet of 1910
Great Daylight Comet of 1910
The Great January Comet of 1910, formally designated C/1910 A1 and often referred to as the Daylight Comet appeared in January 1910. It was already visible to the naked eye when it was first noticed, and many people independently "discovered" the comet...

 (C/1910 A1)
(not to be confused with the 1910 apparition of 1P/Halley)
Observed by many on the morning of January 12, 1910, the first astronomer to see it was Innes

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