[BAA Comets] C/2012S1 location image no2

[Andrew Robertson]

It's good to know for definite. Thanks Dennis.

Andrew
P.S. Had a very nice view of Lovejoy in my 28 x 110 bins this morning and a
stonking view thro' the 600mm Dob :-) 

-----Original Message-----
From: comets-disc-bounces at britastro.org
[mailto:comets-disc-bounces at britastro.org] On Behalf Of DENIS BUCZYNSKI
Sent: 10 December 2013 16:45
To: comets-ml at yahoogroups.com; Comet-Images at yahoogroups.com; BAA Comets
discussionlist; asvcometsection at yahoogroups.com
Subject: [BAA Comets] C/2012S1 location image no2

Hello all,
This morning in clear skies in Highland Scotland I was able to take a series
of 60s exposures of the ephemeris location of this comet using C14 telescope
and a 300mm f/4 Apo lens and SBIG CCD cameras. The field was above 10
degrees altitude at the time of the exposures (06:30UT). I was UNABLE to
find any CONDENSED OBJECT at the ephemeris location down to mag 15 when
compared to the DSS field image. It seems that no significant nucleus of
this comet survived the perihelion passage.
My images are at the following link on the BAA Comet Gallery.

http://britastro.org/baa/index.php?view=detail&id=2066&option=com_joomgaller
y

Details of the images are in the text box below the images.


I was not searching for any dust cloud remnant, but for any indication that
the nucleus survived. I am sure that it may be possible to image the dust
cloud, as Terry Lovejoy has suggested using wide angle fast optics in the
same way that the dust cloud remnant of C/2010 X1 was imaged. We know from
the spacecraft images that a dust cloud remained but the question of any
surviving nucleus was not certain. It was for this purpose that my searches
have been made. It would be interesting to examine any deeper images taken
in better conditons and at a higher resolution than my imaging set up to be
more certain that the nucleus did not survive. Perhaps we have seen the
death of this comet with the SOHO images at perihelion and no more images
will be seen. Ah well!


Denis Buczynski
Tarbatness Observatory MPC Code I81
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