(12669) Emilybrisnehan Main-belt Asteroid
Discovered on 25 June 1979 by Helin, E. F., Bus, S. J. at Siding Spring.
Emily Walters Brisnehan (b. 1987) contributed to NASA's Lucy Trojan asteroid mission as the Instrument Accommodations Systems Engineer. She is the proud mother of Margot and Norah.Naming citation (WGSBN Bull. 1, #9, 12), IAU / Minor Planet Center, via NASA/JPL
Where Emilybrisnehan is today
Seen from above the solar system on 2026-10-14: Emilybrisnehan is 2.82 au from the Sun and 3.49 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12669 |
| Provisional designation | 1979 MY5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.74 km (#9,325 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.282 |
| Absolute magnitude (H) | 13.56 |
| Orbital period | 4.45 years |
| Semi-major axis | 2.71 au |
| Perihelion – aphelion | 2.41 – 3.00 au |
| Eccentricity | 0.109 |
| Inclination | 11.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.40 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Emily
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- (19463) Emilystoll
- (27102) Emilychen
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- (27456) Sarkisian
All asteroids named after someone called Emily
Also discovered on 25 June 1979
- (2343) Siding Spring
- (2392) Jonathan Murray
- (2441) Hibbs
- (2618) Coonabarabran
- (2619) Skalnate Pleso
- (2628) Kopal
- (2682) Soromundi
- (2704) Julian Loewe
- (3129) Bonestell
- (3205) Boksenberg
- (3756) Ruscannon
- (3817) Lencarter