(9403) Sanduleak Main-belt Asteroid
Discovered on 31 October 1994 by Spacewatch at Kitt Peak.
Nicholas Sanduleak (1933-1990) was a staff scientist at the Warner and Swasey Observatory from 1967 to his death. Renowned as a classifier and cataloguer of stars, he was the co-discoverer of SS 433 (V1343 Aql) and the cataloguer of the precursor object of SN 1987A.Naming citation (20000523/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Sanduleak is today
Seen from above the solar system on 2026-10-14: Sanduleak is 2.94 au from the Sun and 3.26 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9403 |
| Provisional designation | 1994 UJ11 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.10 km (#7,507 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.201 |
| Absolute magnitude (H) | 13.44 |
| Orbital period | 4.41 years |
| Semi-major axis | 2.69 au |
| Perihelion – aphelion | 2.44 – 2.94 au |
| Eccentricity | 0.0939 |
| Inclination | 4.29° |
| Closest distance between its orbit and Earth's (MOID) | 1.42 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Nicholas
- (2131) Mayall
- (3110) Wagman
- (5774) Ratliff
- (8254) Moskovitz
- (11718) Hayward
- (13699) Nickthomas
- (16150) Clinch
- (16193) Nickaiser
- (18015) Semenkovich
- (19384) Winton
- (19425) Nicholasrapp
- (20371) Ekladyous
All asteroids named after someone called Nicholas
Also discovered on 31 October 1994
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← (9399) Pesch · (9405) Johnratje →