2001 CB21 Late Febuary

[bigmasterdrago]

This really large (possibly kilometer sized) rock from space known as 138971 (2001 CB21), should be in view of larger scopes in the early morning hours (Feb 20) moving slowly in Coma Berenices at magnitude 14.9. Many recent observations have the ephemeris locked in. In a couple of weeks, March 1, it should be near 14th mag and well placed in a moonless sky. Spending all the morning dark hours very high until twilight encroaches. It remains high each morning until close approach in the morning hours of March 4th. It does not brighten, dropping to 15th mag at closest approach, but moving 30"/min clipping thru southern Hercules at a safe distance of 13LD.

I'm looking for a good weather front to wash my air.