9844 Otani
| Discovery Synodic rotation period | 10.0730±0.0053 h[4] | |
|---|---|---|
| 0.21 (assumed)[3] | ||
| S [3] | ||
| 13.87±0.47[5] · 13.9[1] · 13.939±0.004 (R)[4] · 14.39[3] | ||
9844 Otani, provisional designation 1989 WF1, is a stony Eunomian asteroid from the middle region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 23 November 1989, by Japanese astronomers Yoshio Kushida and Osamu Muramatsu at the Yatsugatake South Base Observatory, Hokuto, near the Greater Tokyo Area, Japan.[6] It was named for Japanese astronomer Toyokazu Otani.[2]
Orbit and classification
Otani is a member of the Eunomia family, a large group of S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun in the central main-belt at a distance of 2.1–3.3 AU once every 4 years and 5 months (1,620 days). Its orbit has an eccentricity of 0.22 and an inclination of 13° with respect to the ecliptic.[1] The first used observation was a precovery taken at Palomar Mountain in 1949, extending the body's observation arc by 40 years prior to its official discovery observation.[6]
Physical characteristics
A rotational
The Collaborative Asteroid Lightcurve Link assumes an
Naming
This
References
- ^ a b c d "JPL Small-Body Database Browser: 9844 Otani (1989 WF1)" (2017-04-30 last obs.). Jet Propulsion Laboratory. Retrieved 22 June 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d e f "LCDB Data for (9844) Otani". Asteroid Lightcurve Database (LCDB). Retrieved 1 August 2016.
- ^ . Retrieved 1 January 2016.
- . Retrieved 1 August 2016.
- ^ a b "9844 Otani (1989 WF1)". Minor Planet Center. Retrieved 1 August 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 1 August 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- 9844 Otani at AstDyS-2, Asteroids—Dynamic Site
- 9844 Otani at the JPL Small-Body Database
