1842 Hynek
| Discovery [1] | |
|---|---|
| Discovered by | L. Kohoutek |
| Discovery site | Bergedorf Obs. |
| Discovery date | 14 January 1972 |
| Designations | |
| MPC designation | 1842 Hynek |
Named after |
Hynek Kohoutek (father of discoverer)[2] |
|
1972 AA · 1928 DE 1929 SO · 1952 DN2 1953 UV · 1962 EA 1963 SS · 1964 YF 1966 HE · 1969 EG1 2004 TE363 | |
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.47 yr (31583 days) |
| Aphelion | 2.6765 AU (400.40 Gm) |
| Perihelion | 1.8549 AU (277.49 Gm) |
| 2.2657 AU (338.94 Gm) | |
| Eccentricity | 0.18131 |
| 3.41 yr (1245.7 d) | |
| 166.10° | |
| 0° 17m 20.364s / day | |
| Inclination | 5.3552° |
| 153.46° | |
| 125.66° | |
| Earth MOID | 0.843163 AU (126.1354 Gm) |
| Jupiter MOID | 2.46084 AU (368.136 Gm) |
| Jupiter Tisserand parameter | 3.589 |
| Physical characteristics | |
| Dimensions |
8.171±0.027 km[4] 9.80 km (calculated)[3] |
| 3.94±0.02 h,[5] 3.9410 h (0.16421 d)[1] | |
|
0.2899±0.0415[4] 0.20 (assumed)[3] | |
|
B–V = 0.871 U–B = 0.522 Tholen = S | |
| 12.41 | |
|
| |
1842 Hynek, provisional designation 1972 AA, is a stony asteroid from the inner regions of the asteroid belt, about 9 kilometers in diameter. It was discovered by Czech astronomer Luboš Kohoutek at the Hamburger Bergedorf Observatory, Germany on 14 January 1972.[6]
The asteroid is a member of the Flora family. It orbits the Sun at a distance of 1.9–2.7 AU once every 3 years and 5 months (1,246 days). The S-type asteroid has an albedo of about 0.20–0.30[4] and rotates every 3.94±0.02 hours around its axis.
It was named after the first name of the discoverer's father, Hynek Kohoutek, on the occasion of his 70th birthday.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1842 Hynek (1972 AA)" (2015-10-12 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1842) Hynek. Springer Berlin Heidelberg. p. 148. ISBN 978-3-540-29925-7. Retrieved 22 August 2016.
- 1 2 3 "LCDB Data for (1842) Hynek". Asteroid Lightcurve Database (LCDB). Retrieved 22 August 2016.
- 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407
. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 22 August 2016. - ↑ Behrend, Raoul. "Asteroids and comets rotation curves – (1842) Hynek". Geneva Observatory. Retrieved 22 August 2016.
- ↑ "1842 Hynek (1972 AA)". Minor Planet Center. Retrieved 22 August 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Geneve, Raoul Behrend
- 1842 Hynek at the JPL Small-Body Database
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