(9991) Anezka Outer Main-belt Asteroid
Discovered on 5 October 1997 by Z. Moravec at Klet.
Where Anezka is today
Seen from above the solar system on 2026-10-14: Anezka is 3.65 au from the Sun and 2.71 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9991 |
| Provisional designation | 1997 TY7 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 12.3 km (#3,968 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0970 |
| Rotation period | 4.47 hours |
| Absolute magnitude (H) | 13.46 |
| Orbital period | 5.72 years |
| Semi-major axis | 3.20 au |
| Perihelion – aphelion | 2.69 – 3.71 au |
| Eccentricity | 0.158 |
| Inclination | 2.18° |
| Closest distance between its orbit and Earth's (MOID) | 1.69 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 5 October 1997
- (9671) Hemera
- (9672) Rosenbergerezek
- (14980) Gustavbrom
- (29464) Leonmis
- (48794) Stolzova
- (52604) Thomayer
- (58595) Joepollock
- (58600) Iwamuroonsen