1245 Calvinia

1245 Calvinia
Discovery
Discovered by	C. Jackson
Discovery site	Johannesburg Obs.
Discovery date	26 May 1932
Designations
MPC designation	(1245) Calvinia
Named after	Calvinia
Alternative designations	1932 KF · 1948 VT; 1950 CP · A906 FB; A914 YB · A916 DC; A917 KE
Minor planet category	main-belt · (outer)
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	110.63 yr (40,409 days)
Aphelion	3.1306 AU
Perihelion	2.6553 AU
Semi-major axis	2.8929 AU
Eccentricity	0.0822
Orbital period (sidereal)	4.92 yr (1,797 days)
Mean anomaly	16.896°
Mean motion	0° 12m 1.08s / day
Inclination	2.8933°
Longitude of ascending node	151.73°
Argument of perihelion	208.52°
Physical characteristics
Dimensions	26.8 km; 29.751±0.204
Synodic rotation period	4.84 h (0.202 d)
Geometric albedo	0.221±0.028; 0.2713±0.086
Spectral type	Tholen = S ; B–V = 0.847; U–B = 0.474
Absolute magnitude (H)	9.9

1245 Calvinia, provisionally designated 1932 KF, is a stony main-belt asteroid with a diameter of about 27 kilometers. It orbits the Sun with a period of 4.92 years at a distance of 2.7–3.1 AU. The S-type asteroid has a high albedo of 0.27 and is therefore relatively bright for its size. Calvinia has been measured to rotate around its axis every 4.84 hours. It was discovered by astronomer Cyril Jackson at Johannesburg Union Observatory, South Africa, on May 26, 1932.^[1]

This asteroid was named after the regional city Calvinia in the Cape Province of South Africa.^[2]

References

^ ^a ^b ^c ^d ^e ^f ^g "JPL Small-Body Database Browser: 1245 Calvinia (1932 KF)" (2016-11-03 last obs.). Jet Propulsion Laboratory. Retrieved 15 June 2017.
^ ^a ^b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1245) Calvinia. Springer Berlin Heidelberg. p. 103. ISBN 978-3-540-29925-7. Retrieved 22 August 2016.
^ ^a ^b Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 15 June 2017.

External links

Dictionary of Minor Planet Names, Google books
1245 Calvinia at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

[jpldata-1] ^ ^a ^b ^c ^d ^e ^f ^g "JPL Small-Body Database Browser: 1245 Calvinia (1932 KF)" (2016-11-03 last obs.). Jet Propulsion Laboratory. Retrieved 15 June 2017.

[springer-2] Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1245) Calvinia. Springer Berlin Heidelberg. p. 103. ISBN 978-3-540-29925-7. Retrieved 22 August 2016.

[Masiero-2014-3] Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 15 June 2017.

[1]

[2]

[3]