244 Sita

244 Sita
	3D model based on lightcurve data
Discovery
Discovered by	Johann Palisa
Discovery date	14 October 1884
Designations
MPC designation	(244) Sita
Pronunciation	/ˈsiːtə/
Named after	Sita
Alternative designations	A884 TA, 1900 UA; 1957 KT, 1976 HY; 1979 FL3
Minor planet category	main-belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	130.93 yr (47824 d)
Aphelion	2.47317 AU (369.981 Gm)
Perihelion	1.87531 AU (280.542 Gm)
Semi-major axis	2.17424 AU (325.262 Gm)
Eccentricity	0.13749
Orbital period (sidereal)	3.21 yr (1,171.0 d)
Mean anomaly	46.3767°
Mean motion	0° 18m 26.737s / day
Inclination	2.84423°
Longitude of ascending node	208.982°
Argument of perihelion	166.029°
Physical characteristics
Mean diameter	10.95±0.8 km ; 11 km
Mass	~2×1015 (estimate)
Mean density	~2.7 g/cm3 (estimate)
Synodic rotation period	129.51 h (5.396 d)
Geometric albedo	0.1941±0.033 ; 0.194
Spectral type	S
Absolute magnitude (H)	11.9

244 Sita is a background asteroid from the inner region of the asteroid belt, approximately 11 kilometers (6.8 miles) in diameter.^[1] It was discovered on 14 October 1884, by an Austrian astronomer Johann Palisa in the Vienna Observatory and was named for the Hindu deity Sita.^[5]

This minor planet is orbiting the Sun at a distance of 2.17 AU with an eccentricity of 0.137 and an orbital period of 3.21 yr. The orbital plane is tilted at an angle of 2.84° to the plane of the ecliptic.^[1] It is spinning slowly, completing a rotation about its axis once every 129.056 ± 0.021 h (5.377 ± 0.001 d).^[6]

References

^ ^a ^b ^c ^d ^e "244 Sita". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
^ ^a ^b "Supplemental IRAS Minor Planet Survey". Archived from the original on 23 June 2006.
^ G. A. Krasinsky, E. V. Pitjeva, M. V. Vasilyev, E. I. Yagudina (2002). "Hidden Mass in the Asteroid Belt". Icarus. 158 (1): 98–105. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837.
^ PDS spectral class data
^ Schmadel, Lutz (5 August 2003). Dictionary of Minor Planet Names. Springer Science & Business Media. ISBN 9783540002383 – via Google Books.
^ Vander Haagen, Gary A. (April 2010). "Lightcurve and H-G Parameters for Slow Rotator 244 Sita". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 37 (2): 44–45. Bibcode:2010MPBu...37...44V.

External links

The Asteroid Orbital Elements Database
Minor Planet Discovery Circumstances
244 Sita at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
244 Sita at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

This article about an S-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it.

[jpldata-1] "244 Sita". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.

[IRAS-2] "Supplemental IRAS Minor Planet Survey". Archived from the original on 23 June 2006.

[Krasinsky-3] G. A. Krasinsky, E. V. Pitjeva, M. V. Vasilyev, E. I. Yagudina (2002). "Hidden Mass in the Asteroid Belt". Icarus. 158 (1): 98–105. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837.

[PDS_lc-4] PDS spectral class data

[5] Schmadel, Lutz (5 August 2003). Dictionary of Minor Planet Names. Springer Science & Business Media. ISBN 9783540002383 – via Google Books.

[Vander_Haagen_2010-6] Vander Haagen, Gary A. (April 2010). "Lightcurve and H-G Parameters for Slow Rotator 244 Sita". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 37 (2): 44–45. Bibcode:2010MPBu...37...44V.

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