1391 Carelia
Encyclopedia
1391 Carelia
Name
Name Carelia
Designation 1936 DA
Discovery
Discoverers Y. Väisälä
Yrjö Väisälä
Yrjö Väisälä was a Finnish astronomer and physicist.His main contributions were in the field of optics, but he was also very active in geodetics, astronomy and optical metrology...

Discovery date February 16, 1936
Discovery site Turku Observatory
Turku observatory
Turku observatory may refer to:*Vartiovuori observatory, an old observatory building in Turku, Finland*Iso-Heikkilä Observatory, a former university observatory in Iso-Heikkilä district of Turku, now used by amateur astronomers...

Orbital elements
Epoch
Epoch (astronomy)
In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as celestial coordinates, or elliptical orbital elements of a celestial body, where these are subject to perturbations and vary with time...

 October 27, 2007 (JDCT
Julian day
Julian day is used in the Julian date system of time measurement for scientific use by the astronomy community, presenting the interval of time in days and fractions of a day since January 1, 4713 BC Greenwich noon...

 2454400.5)
Eccentricity (e) 0.1674461
Semimajor axis (a) 2.5465001 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

Perihelion (q) 2.1200986 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

Aphelion (Q) 2.9729016 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

Orbital period
Orbital period
The orbital period is the time taken for a given object to make one complete orbit about another object.When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars.There are several kinds of...

 (P)
4.06 a
Julian year (astronomy)
In astronomy, a Julian year is a unit of measurement of time defined as exactly 365.25 days of 86 400 SI seconds each, totaling 31 557 600 seconds. The Julian year is the average length of the year in the Julian calendar used in Western societies in previous centuries, and for which the unit is...

Inclination
Inclination
Inclination in general is the angle between a reference plane and another plane or axis of direction.-Orbits:The inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit...

 (i)
7.58649°
Longitude of the ascending node
Longitude of the ascending node
The longitude of the ascending node is one of the orbital elements used to specify the orbit of an object in space. It is the angle from a reference direction, called the origin of longitude, to the direction of the ascending node, measured in a reference plane...

 (Ω)
103.56551°
Argument of Perihelion (ω) 85.11242°
Mean anomaly
Mean anomaly
In celestial mechanics, the mean anomaly is a parameter relating position and time for a body moving in a Kepler orbit. It is based on the fact that equal areas are swept at the focus in equal intervals of time....

 (M)
242.48687°

1391 Carelia is a main belt asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

 with a perihelion of 2.1183552 AU
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....

. It has an eccentricity of 0.1674461 and an orbital period
Orbital period
The orbital period is the time taken for a given object to make one complete orbit about another object.When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars.There are several kinds of...

 of 1484.2736262 days (4.06 years). It has an average orbital speed
Orbital speed
The orbital speed of a body, generally a planet, a natural satellite, an artificial satellite, or a multiple star, is the speed at which it orbits around the barycenter of a system, usually around a more massive body...

 of 18.66764903 km/s and an inclination
Inclination
Inclination in general is the angle between a reference plane and another plane or axis of direction.-Orbits:The inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit...

 of 7.58649°.

The asteroid was discovered on February 16, 1936 at the Turku Observatory
Turku observatory
Turku observatory may refer to:*Vartiovuori observatory, an old observatory building in Turku, Finland*Iso-Heikkilä Observatory, a former university observatory in Iso-Heikkilä district of Turku, now used by amateur astronomers...

 by Yrjö Väisälä
Yrjö Väisälä
Yrjö Väisälä was a Finnish astronomer and physicist.His main contributions were in the field of optics, but he was also very active in geodetics, astronomy and optical metrology...

.
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