File:Cyllarus-Keck-Nov2009-mag23.gif

52975 Cyllarus (1998 TF35) is a Centaur. As of November 2009, it has a very faint apparent magnitude of 23 and is also 23 AU from the Sun. Cyllarus has "the record for the faintest spectrum of a Kuiper belt object".

Animated GIF stored on Mike Brown's website at http://www.gps.caltech.edu/~mbrown/tf.gif

November 2009

Mike Brown and his team using the W. M. Keck Observatory. Wikipedia image modified by Kevin Heider to make Cyllarus more obvious to a casual viewer.

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Fair use

This image qualifies for fair use in the articles 52975 Cyllarus because:

1) It helps illustrate how little is known about this distant and hard to detect object.

2) There is no freely available alternative to this unique image since it is not a frequently photographed subject and is beyond the reach of amateur astronomers.

3) Displaying this simple image of a poorly known object on a non-profit website (Wikipedia) should cause no financial loss to the copyright holder(s).

Credit: W. M. Keck Observatory and Mike Brown and his team
Keck Observatory can be contacted at http://keckobservatory.org/contact