1840 Hus
| Discovery [1] | |
|---|---|
| Discovered by | L. Kohoutek |
| Discovery site | Bergedorf Obs. |
| Discovery date | 26 October 1971 |
| Designations | |
| MPC designation | 1840 Hus |
Named after |
Jan Hus (early Reformer)[2] |
|
1971 UY · 1931 TS3 1935 NC · 1953 CG | |
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.14 yr (30731 days) |
| Aphelion | 2.9676 AU (443.95 Gm) |
| Perihelion | 2.8685 AU (429.12 Gm) |
| 2.9180 AU (436.53 Gm) | |
| Eccentricity | 0.016989 |
| 4.98 yr (1820.7 d) | |
| 297.26° | |
| 0° 11m 51.828s / day | |
| Inclination | 2.4088° |
| 40.525° | |
| 13.930° | |
| Earth MOID | 1.87684 AU (280.771 Gm) |
| Jupiter MOID | 2.0742 AU (310.30 Gm) |
| Jupiter Tisserand parameter | 3.279 |
| Physical characteristics | |
| Dimensions |
12.592±0.123 km[4] 26.64 km (caculated)[3] |
| 4.780 h (0.1992 d)[1][5] | |
|
0.2554±0.0232[4] 0.057 (assumed)[3] | |
| C [3] | |
| 11.7 | |
|
| |
1840 Hus, provisional designation 1971 UY, is a carbonaceous asteroid dwelling the outer regions of the asteroid belt. It was discovered on 26 October 1971 by Czech astronomer Luboš Kohoutek at Bergedorf Observatory in Hamburg, Germany.[6]
It orbits the Sun at a distance of 2.9–3.0 AU once every 5 years (1,821 days). It has a rotation period of 4.780 hours. The asteroid is calculated to measure about 27 kilometers in diameter and to have a geometric albedo of 0.06, as assumed by the Light Curve Database project (LCDB). These figures strongly deviate from observations made by the NEOWISE survey, that indicated the body to be only half the size with a higher albedo of 0.25, which would be rather unusual if it were a C-type asteroid, as assumed by the LCDB project.[3][4]
It is named after Czech Jan Hus (1372–1415), a fifteenth century Bohemian theologian, rector of Charles University in Prague and forerunner of the protestant reformation. He was condemned to death by the Council of Constance and burned at the stake for his reformation ideas.[2] Jan Hus is also known as John Huss in the English speaking world.
References
- 1 2 3 "JPL Small-Body Database Browser: 1840 Hus (1971 UY)" (2015-10-09 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1840) Hus. Springer Berlin Heidelberg. p. 147. ISBN 978-3-540-29925-7. Retrieved November 2015.
- 1 2 3 4 5 "LCDB Data for (1840) Hus". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
- 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 November 2015.
- ↑ Clark, Maurice (July 2010). "Asteroid Lightcurves from the Chiro Observatory". The Minor Planet Bulletin 37 (3): 89–92. Bibcode:2010MPBu...37...89C. ISSN 1052-8091. Retrieved November 2015.
- ↑ "1840 Hus (1971 UY)". Minor Planet Center. Retrieved November 2015.
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
- 1840 Hus at the JPL Small-Body Database
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