In Evidence
Ephemeris Calculator
Compute Asteroid 2009 JF1 ephemerides for any date and time between 01 Jan 1970 and 01 Jan 1970 and display the predicted position in an interactive sky map.
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How bright is Asteroid 2009 JF1?
The current visual magnitude of Asteroid 2009 JF1 is 33.85. Given its brightness, Asteroid 2009 JF1 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 2009 JF1, 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.