(57424) Caelumnoctu Main-belt Asteroid
Discovered on 16 September 2001 by LINEAR at Socorro.
The number of this minor planet signifies the date, 1957 Apr. 24, of the transmission of the first edition of the BBC television series The Sky at Night. Caelum noctu in Latin, this monthly astronomy series has been hosted by Patrick Moore now for half a century, a record for any television series in the world.Naming citation (20070402/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Caelumnoctu is today
Seen from above the solar system on 2026-10-14: Caelumnoctu is 3.21 au from the Sun and 3.73 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 57424 |
| Provisional designation | 2001 SP22 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.88 km (#7,797 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.113 |
| Absolute magnitude (H) | 13.95 |
| Orbital period | 5.29 years |
| Semi-major axis | 3.04 au |
| Perihelion – aphelion | 2.76 – 3.32 au |
| Eccentricity | 0.0927 |
| Inclination | 9.66° |
| Closest distance between its orbit and Earth's (MOID) | 1.77 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 16 September 2001
- (34796) Rheamalhotra
- (34797) Alicemartynova
- (34799) Mcdonaldboyer
- (34819) Nandininaidu
- (34821) Oyetunji
- (34822) Dhruvikparikh
- (55276) Kenlarner
- (57509) Sly
- (77870) MOTESS
- (83360) Catalina
- (109879) Letelier