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C/2012 S1 ISON

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Observer
Martin Mobberley
Time of observation
19/10/2013 - 15:28
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ccd image and observation Despite horrendous field illumination issues caused by the bright background I salvaged another shot of ISON a couple of hours ago...... 20131019 Martin Mobberley
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154P Brewington

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Observer
Alexander Baransky
Time of observation
19/10/2013 - 15:26
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ccd image and observation 2013 Sept. 27, 20:08:39 (UT), 360s exp. (3 stack images), 0.7-m (f/4) reflector + CCD PL47-10 FLI + R filter, Alexander Baransky, Kyiv comet station (MPC 585). 20130927 Alexander Baransky
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119P Parker Hartley

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Observer
Alexander Baransky
Time of observation
19/10/2013 - 15:24
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ccd image and observation 2013 Sept. 28, 01:33:50 (UT), 720s exp. (6 stack images), 0.7-m (f/4) reflector + CCD PL47-10 FLI + R filter, Alexander Baransky, Kyiv comet station (MPC 585 20130928 Alexander Baransky
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74P Smirnova-Chernykh

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Time of observation
19/10/2013 - 15:22
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ccd image and observation 20130927 Alexander Barnsky
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C/2012 S1 ISON

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Observer
Martin Mobberley
Time of observation
19/10/2013 - 15:18
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ccd image and observation Yet another remote shot of ISON is attached, taken a few hours ago. The sky was bright as the Full Moon was above the horizon, but the real problem was glare from Mars, not far outside the field.....spreading from the south across the CCD and almost trashing the image. I also tried a shot with the smaller 0.43m scope but the internal reflections from Mars on that shot wrote the entire image off! Light from Regulus may not have helped either....... Unfortunately this problem (and the Moon) will probably be around for a while........... 20131017 Martin Mobberley
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154P Brewington

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Roger Dymock
Time of observation
19/10/2013 - 15:15
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ccd image and observation 20131011 Roger Dymock
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119P Parker-Hartley

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Observer
Roger Dymock
Time of observation
19/10/2013 - 15:14
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ccd image and observation 20131011 Roger Dymock
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2P Encke

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Roger Dymock
Time of observation
19/10/2013 - 15:13
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ccd image and observation 20131011 Roger Dymock
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257P Catalina

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Observer
Roger Dymock
Time of observation
19/10/2013 - 15:12
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ccd image and observation 20131011 Roger Dymock
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BAA Articles

Comet C/2012 S1 (ISON) in December

At the moment comet C/2012 S1 is a 10th magnitude object in the morning sky. How it will look after perihelion in early December is highly dependent on what happens to it as it passes through perihelion at only 0.012au from the sun. The best scenario is that the small comet nucleus breaks up at perihelion so that significant volatiles and dust are then driven off to form a spectacular and bright tail. This would be similar to the case of Comet Lovejoy a couple of years ago which produced a spectacular display in the southern hemisphere

Comet C/2012 S1 (ISON) on December 6

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