Comet C/2013 US10 Catalina
Taken by Dr Paolo Candy on December 17, 2015 @
Ci.A.O. Cimini Astronomical Observatory - Italy
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Details:
The comet is easy visible to naked eye like a cotton swab, in a very clear starry sky as I had this morning before dawn.
Venus cast shadows inside my observatory! It was very cold and dry, and I had to be very careful to static electricity, in fact, sometimes I saw sparks on contact with certain objects.
I used an astrograph homebuilt, starting from a TS Newton D=150mm F/4. This comet show a long blue ion tail, so it is necessary use low focal lengh like this 420mm.
Photographer's website:
http://www.hesnet.net/candy
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