How bright is Asteroid 2010 RF12?
The current visual magnitude of Asteroid 2010 RF12 is 30.17. Given its brightness, Asteroid 2010 RF12 should be visible only through long exposure photography.
The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 2010 RF12, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.
Predicted magnitude of Asteroid 2010 RF12 between
January 2000 and January 2100