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Post Info TOPIC: Comet 174P/Echeclus
Blobrana


L

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60558 Echeclus
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The large, diffuse breakaway object is centred at the 2 o'clock position relative to the nucleus of 60558 Echeclus.
Image: University of Oklahoma

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Blobrana


L

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RE: Comet 174P/Echeclus
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Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2006 04 05    13 09.01   -05 13.7   11.901   12.899   176.5     0.3        20.5
2006 04 10    13 07.83   -05 06.0   11.890   12.891   177.0     0.2        20.5
2006 04 15    13 06.65   -04 58.4   11.887   12.881   172.2     0.6        20.5
2006 04 20    13 05.49   -04 51.0   11.891   12.872   167.1     1.0        20.6
2006 04 25    13 04.36   -04 43.8   11.903   12.863   162.0     1.4        20.6
2006 04 30    13 03.27   -04 36.9   11.922   12.854   156.8     1.8        20.6


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Blobrana


L

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Astronomers have found a `complex structure` around coma of Centaur 60558 (it was first reported by Choi and Weissman in late 2005, and originally classified as a Centaur) . The object is now known as comet 174P/Echeclus.
It was imaged using the 1.8 meter Vatican Advanced Technology Telescope on Mt Graham, Arizona.

The highest surface brightness condensation in the extended structure is clearly separated from the nucleus, which may suggest a transient impact event on the nucleus. The extended object can be traced for over 2 arcmin in diameter.
Currently, the object is almost 13 AU from the Sun. The nucleus has an R magnitude of 20.1. The entire extended structure has an R mag of about 16. The higher surface brightness condensation to the west has an R magnitude of about 18.

The Astronomers had imaged the object in 2004 and found no coma.

http://observatory.ou.edu/

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