(14420) Massey Main-belt Asteroid
Discovered on 30 September 1991 by R. H. McNaught at Siding Spring.
Steven (Steve) Massey (b. 1962) was a pioneer in the use of modern video cameras in astronomical imaging. He has published two books on video imaging of astronomical objects and encourages amateurs and school groups in this field.Naming citation (20040504/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Massey is today
Seen from above the solar system on 2026-10-14: Massey is 3.12 au from the Sun and 4.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 14420 |
| Provisional designation | 1991 SM |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.94 km (#5,136 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.179 |
| Rotation period | 4.08 hours |
| Absolute magnitude (H) | 12.82 |
| Orbital period | 5.21 years |
| Semi-major axis | 3.01 au |
| Perihelion – aphelion | 2.64 – 3.37 au |
| Eccentricity | 0.121 |
| Inclination | 11.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.65 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 30 September 1991
- (6020) Miyamoto
- (7128) Misawa
- (8283) Edinburgh
- (9349) Lucas
- (10098) Jaymiematthews
- (14424) Laval
- (14888) Kanazawashi
- (18376) Quirk
- (20015) Liguori
- (46568) Stevenlee
More named asteroids discovered by R. H. McNaught
- (3904) Honda
- (4093) Bennett
- (4128) UKSTU
- (4129) Richelen
- (4220) Flood
- (4456) Mawson
- (4499) Davidallen
- (4504) Jenkinson
- (4638) Estens
- (4667) Robbiesh
- (4678) Ninian
- (4679) Sybil
← (14413) Geiger · (14424) Laval →