(27562) Josephmarcus Main-belt Asteroid
Discovered on 27 May 2000 by LONEOS at Anderson Mesa.
Joseph Marcus (b. 1949) is a pathologist with a longtime interest in comets. As a resident at Washington University in St Louis, he founded and edited the quarterly Comet News Service published by the McDonnell Planetarium from 1975 to 1986. He serves on the Lowell Observatory Advisory Board where he chairs the Putnam Collection Center Committee.Naming citation (WGSBN Bull. 2, #8, 9), IAU / Minor Planet Center, via NASA/JPL
Where Josephmarcus is today
Seen from above the solar system on 2026-10-14: Josephmarcus is 3.40 au from the Sun and 4.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 27562 |
| Provisional designation | 2000 KJ54 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.8 km (#3,199 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0620 |
| Absolute magnitude (H) | 13.26 |
| Orbital period | 5.40 years |
| Semi-major axis | 3.08 au |
| Perihelion – aphelion | 2.75 – 3.40 au |
| Eccentricity | 0.106 |
| Inclination | 15.3° |
| 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 named after someone called Joseph
- (2157) Ashbrook
- (4225) Hobart
- (5034) Joeharrington
- (5577) Priestley
- (5883) Josephblack
- (6540) Stepling
- (6743) Liu
- (7656) Joemontani
- (8023) Josephwalker
- (8255) Masiero
- (8661) Ratzinger
- (8794) Joepatterson
All asteroids named after someone called Joseph
Also discovered on 27 May 2000
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- (30407) Pantano
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