C/2012 S1 (ISON)
Long-awaited Comet C/2012 S1 (ISON) ISON has appeared in
the eastern sky in twilight. It is only about 30 degrees above horizon
and not quite bright yet. But the tail has begun to grow, showing a sign
of an upcoming great comet. The magnitude is visually about 11. This comet
will brighten rapidly and grow large.
Special viewing sessions at Geisei Observatory for this comet
are scheduled for the following dates:
First session: 5am-7am on Sunday, November
24
Second session: 5am-7 am on Sunday,
December 1
A program about ISON featuring Geisei Observatory is going
to be shown at Goto planetariums across the country. Another sungrazer
of 1965 (Comet Ikeya-Seki) will be also featured in the program.
C/2012 S1 (ISON)
4-minute exposure at 4:13, October 2, 2013 (J.S.T.)
70cm f/7 reflector with Nikon D700 at ISO 1600
Copyright (C) 2013 Geisei Observatory
