5 April 2000
main-belt · Koronis
5 April 2000
| Lincoln Lab ETS|
2000 GL74 · 1973 VM
16138 days (44.18 yr)
| Lincoln Near-Earth Asteroid Research|
208 Lacrimosa, 277 Elvira, 9916 Kibirev, 532 Herculina, 311 Claudia
17246 Christophedumas, provisional designation 2000 GL74, is a binary asteroid from the main-belt and member of the Koronis family, about 5 kilometers in diameter. It was discovered on 5 April 2000, by the Lincoln Near-Earth Asteroid Research (LINEAR) program at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico. It is known to possess an asteroid moon, designated S/2004 (17246) 1. The S-type asteroid orbits the Sun at a distance of 2.8–2.9 AU once every 4 years and 9 months (1,748 days) and shows an eccentricity of 0.02 and an inclination of 2 degrees from the plane of the ecliptic.
17246 Christophedumas Wikipedia
17246 Christophedumas is more reflective than most asteroids, with an albedo of 0.21. Even so, it is not very large, having a size of only 4.5 kilometres. Its rotation period of 10 hours is not unusual, however.
On January 9, 2129, the asteroid will come within 3,639,998 kilometers of 3 Juno, one of the largest asteroids in the main-belt, and will pass it with a relative velocity of 6.597 km/s.
17246 Christophedumas has one moon, S/2004 (17246) 1. It is 44% the size of its primary, at 2 km. While its rotation period and orbital eccentricity is not yet known, it is known that the moon completes one orbit every 90 days at a distance of about 250 km. From the surface of 17246 Christophedumas, S/2004 (17246) 1 would have an apparent diameter of about 0.668°, slightly larger than the Moon appears from Earth.