List of stars in Reticulum
Encyclopedia
This is the list of notable star
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...

s in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....

 Reticulum
Reticulum
Reticulum is a small, faint constellation in the southern sky. Its name is Latin for a small net, or reticle—a net of crosshairs at the focus of a telescope eyepiece that is used to measure star positions...

, sorted by decreasing brightness.
Name B
Bayer designation
A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name...

G.
Gould designation
Gould designations for stars are similar to Flamsteed designations in the way that they number stars within a constellation in increasing order of right ascension. Each star is assigned an integer , followed by " G. " , and then the Latin genitive of the constellation it lies in...

HD
Henry Draper Catalogue
The Henry Draper Catalogue is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension , published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the...

HIP RA
Right ascension
Right ascension is the astronomical term for one of the two coordinates of a point on the celestial sphere when using the equatorial coordinate system. The other coordinate is the declination.-Explanation:...

Dec
Declination
In astronomy, declination is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. Declination in astronomy is comparable to geographic latitude, but projected onto the celestial sphere. Declination is measured in degrees north and...

vis.
mag.
Apparent magnitude
The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere...

abs.
mag.
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...

Dist. (ly) Sp. class
Stellar classification
In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure...

Notes
α Ret
Alpha Reticuli
Alpha Reticuli is a G-type bright giant star. It is the brightest star in the constellation of Reticulum and has an apparent visual magnitude of approximately 3.343....

 
α 25 27256 19780 3.33 −0.17 163 G7III double star
Double star
In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope. This can happen either because the pair forms a binary star, i.e...

β Ret  β 14 23817 17440 3.84 1.41 100 K0IV SB triple star system
Star system
A star system or stellar system is a small number of stars which orbit each other, bound by gravitational attraction. A large number of stars bound by gravitation is generally called a star cluster or galaxy, although, broadly speaking, they are also star systems.-Binary star systems:A stellar...

, spectroscopic binary
ε Ret
Epsilon Reticuli
Epsilon Reticuli is a binary system approximately 59 light-years away in the constellation of Reticulum. The primary star is an orange subgiant star, while the secondary star is a white dwarf star. The primary star should be easily visible without optical aid under dark skies in the southern...

 
ε 27 27442 19921 4.44 3.14 59 K2IV double star; component A has a planet
Extrasolar planet
An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars...

 (b
Epsilon Reticuli b
Epsilon Reticuli b, sometimes designated Epsilon Reticuli Ab to distinguish from the white dwarf companion of the primary star Epsilon Reticuli, also known as HD 27442, was discovered on December 16, 2000 by the Anglo-Australian Planet Search Team using the highly successful radial velocity method...

)
γ Ret  γ 22 25705 18744 4.48 −1.41 490 M4III semiregular variable,
δ Ret  δ 18 25422 18597 4.56 −1.50 530 M2III suspected variable
Variable star
A star is classified as variable if its apparent magnitude as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth...

κ Ret  κ 6 22001 16245 4.71 3.05 70 F5IV-V binary star
ι Ret  ι 23 25728 18772 4.97 −0.06 331 K4III
ζ2 Ret
Zeta Reticuli
Zeta Reticuli is a binary star system located about away from Earth. It is located in the constellation Reticulum, and is visible to the unaided eye in very dark skies...

 
ζ2 4 20807 15371 5.24 4.83 39 G1V component of the ζ Ret system
η Ret  η 30 28093 20384 5.24 −0.09 380 G7III
26 27304 19805 5.45 0.88 267 K0III double star
ζ1 Ret
Zeta Reticuli
Zeta Reticuli is a binary star system located about away from Earth. It is located in the constellation Reticulum, and is visible to the unaided eye in very dark skies...

 
ζ1 3 20766 15330 5.53 5.11 40 G2V component of the ζ Ret system
32 28732 20825 5.74 0.72 329 K0III double star
34 29399 21253 5.79 2.48 150 K1III binary star; suspected variable
7 22252 16368 5.81 −1.27 851 B8V
θ Ret  θ 29 27657 20020 5.88 0.12 462 B+... double star; suspected variable
31 28413 20619 5.94 −0.53 642 K4/K5III
5 20888 15353 6.03 2.21 189 A3V
17 25346 18592 6.05 2.10 201 F2IV
16 25170 18401 6.14 0.86 371 K1/K2III
13 23697 17464 6.29 1.83 254 K1III double star
TT Ret  28 27463 19917 6.34 0.96 388 Ap EuCr(Sr) double star; α2 CVn variable
Alpha2 Canum Venaticorum variable
An Alpha2 Canum Venaticorum variable is a type of variable star. These stars are chemically peculiar main sequence stars of spectral class B8p to A7p. They have strong magnetic fields and strong silicon, strontium, or chromium spectral lines...

,
24 26491 19233 6.37 4.54 76 G3V
8 22382 16531 6.42 0.82 429 K0III
HD 23079
HD 23079
HD 23079 is a star approximately 114 light years away in the constellation Reticulum. Since the star is magnitude 7.1, it is not visible to the naked eye, but at least in binoculars, it should be easily visible. The spectral type is F8 or G0, it is a main-sequence star. The star is larger and more...

 
23079 17096 7.1 4.40 113 F9.5V has a planet (b
HD 23079 b
HD 23079 b is an exoplanet approximately 114 light years away in the constellation Reticulum. The planet has mass of at least 2.45 Jupiters, although only the minimum mass is known since inclination is unknown. The planet takes almost exactly two years to orbit the star at the average distance of...

)
HD 25171
HD 25171
HD 25171 is a main sequence FY Star with a single planetary companion known since December 2009....

 
25171 18387 7.79 179 F8V has a planet (b)
HD 23127
HD 23127
HD 23127 is a star in the Reticulum constellation. At the distance of 320 ly, it is not visible to the naked eye, but it is visible with a good pair of binoculars.- Star :...

 
23127 17054 8.56 3.81 291 G2V has a planet (b
HD 23127 b
HD 23127 b is a jovian extrasolar planet orbiting the star HD 23127 at the distance of 2.29 AU, taking 3.32 years to orbit. The orbit is very eccentric, a so-called "eccentric Jupiter". At periastron, the distance is 1.28 AU, putting in its outer edge of the habitable zone, and at apastron, the...

)
R Ret
R Reticuli
R Reticuli or S Reticuli is Mira variable star....

 
29383 21252 9.23 −1.71 5015 M4e-M7.5e S Ret; Mira variable
Mira variable
Mira variables , named after the star Mira, are a class of pulsating variable stars characterized by very red colors, pulsation periods longer than 100 days, and light amplitudes greater than one magnitude in infrared and 2.5 magnitude in visual...

,
HD 27894
HD 27894
HD 27894 is a 9th magnitude star located approximately 138 light years away in the constellation of Reticulum. It is an orange dwarf , a type dimmer and cooler than our Sun....

 
27894 20277 9.42 6.28 138 K2V has a planet (b
HD 27894 b
HD 27894 b is a gas giant with a mass at least two thirds that of Jupiter, or twice that of Saturn. The distance from the planet to the star is one third compared that of Mercury from our Sun, and it takes almost exactly 18 days to complete one roughly circular orbit....

)
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK