(9984) Gregbryant Main-belt Asteroid
Discovered on 18 April 1996 by McNaught, R. H., Child, J. B. at Macquarie.
Editor of the journal of the Astronomical Society of New South Wales, Gregory Bryant (b. 1970) has contributed over 240 original articles. He also cofounded the South Pacific Star Party, and his enthusiastic promotion of this annual event has attracted participants from around the world.Naming citation (20000320/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Gregbryant is today
Seen from above the solar system on 2026-10-14: Gregbryant is 2.48 au from the Sun and 2.94 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9984 |
| Provisional designation | 1996 HT |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.7 km (#4,714 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0800 |
| Absolute magnitude (H) | 13.53 |
| Orbital period | 3.93 years |
| Semi-major axis | 2.49 au |
| Perihelion – aphelion | 2.38 – 2.60 au |
| Eccentricity | 0.0446 |
| Inclination | 3.81° |
| Closest distance between its orbit and Earth's (MOID) | 1.37 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 18 April 1996
- (7849) Janjosefric
- (7902) Hanff
- (9797) Raes
- (10184) Galvani
- (10185) Gaudi
- (11334) Rio de Janeiro
- (13178) Catalan
- (13179) Johncochrane
- (13180) Fourcroy
- (14069) Krasheninnikov
- (31028) Cerulli
- (31031) Altiplano