(649816) Marycoates Main-belt Asteroid
Discovered on 26 September 2011 by N. Falla at Mayhill.
Mary Elizabeth Coates (b. 1943) has worked as a nurse and a sheltered-housing warden in Scotland and England. In addition to being a wife and mother, she has also been a foster mother. Mary is the widow of Michael Coates, a friend of the discoverer.Naming citation (WGSBN Bull. 5, #5, 26), IAU / Minor Planet Center, via NASA/JPL
Where Marycoates is today
Seen from above the solar system on 2026-10-14: Marycoates is 3.02 au from the Sun and 3.76 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 649816 |
| Provisional designation | 2011 SK255 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.71 |
| Orbital period | 5.62 years |
| Semi-major axis | 3.16 au |
| Perihelion – aphelion | 2.96 – 3.36 au |
| Eccentricity | 0.0638 |
| Inclination | 10.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.96 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Mary