(4721) Atahualpa Main-belt Asteroid
Discovered on 29 September 1973 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Where Atahualpa is today
Seen from above the solar system on 2026-10-14: Atahualpa is 2.00 au from the Sun and 2.91 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4721 |
| Provisional designation | 4239 T-2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.61 km (#11,416 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.332 |
| Absolute magnitude (H) | 14.0 |
| Orbital period | 3.38 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 1.98 – 2.53 au |
| Eccentricity | 0.121 |
| Inclination | 4.36° |
| Closest distance between its orbit and Earth's (MOID) | 0.968 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 29 September 1973
- (2049) Grietje
- (4357) Korinthos
- (4549) Burkhardt
- (4752) Myron
- (4876) Strabo
- (4978) Seitz
- (5151) Weerstra
- (5197) Rottmann
- (5243) Clasien
- (5244) Amphilochos
- (5266) Rauch
- (5297) Schinkel
More named asteroids discovered by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T.
- (1743) Schmidt
- (1744) Harriet
- (1776) Kuiper
- (1777) Gehrels
- (1778) Alfven
- (1795) Woltjer
- (1808) Bellerophon
- (1809) Prometheus
- (1810) Epimetheus
- (1811) Bruwer
- (1812) Gilgamesh
- (1813) Imhotep
← (4720) Tottori · (4722) Agelaos →