C/2008 T2 (Cardinal)
The comet is very weak. Comet mag ~17.5, tail 13" in PA 138�
� 2009-01-08 by Bernhard Haeusler,
Maidbronn, Germany Moon Phase: 91%, Magnitude limit: ~ 18.5 mag
27 min. exposure,
2009-01-08 UT 22:13 to 23:13, 12" SCT f-10 + Canon EOS350D
aligned on the stars, comet as inlay
� 2009-01-08 by Bernhard Haeusler,
Maidbronn, Germany Moon Phase: 91%, Magnitude limit: ~ 18.5 mag
27 min. exposure,
2009-01-08 UT 22:13 to 23:13, 12" SCT f-10 + Canon EOS350D
aligned on the comet
The alignment on the comet was a hard job, because I had to
align the exact position of the central condensation on 55 frames � 30 sec.
exp.time.
On one single image I could only see a very faint spot with no visible center.
So I computed manually the positions of all frames with excel
based on starting and ending points of the first and the last image. The result
above is encouraging me to use this method later with other very faint comets.
Position of the comet at January, 08 2009, AU 2.53 from the Sun