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4 messages added in the last 7 days
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  • Re: C/2014 S2 Panstarrs

    Hello Jakub, Thomas Yes I now see my image was taken at 19.58 UT, without complete darkness, as I wanted to get some work done before moonrise. Therefore my

    finbarrconnolly 4 days ago
  • Re: C/2014 S2 Panstarrs

    Hi Finbarr, depending on the method used to deduce comet magnitudes from CCD/DSLR images you may easily underestimate it by 1 mag. The main reason for this is

    4 days ago
  • Re: C/2014 S2 Panstarrs

    May I ask you, how did you determine that brightness from your image? Regards, Jakub Cerny

    sigfridkaos 4 days ago
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Group Description

This group is for observers and anyone else interested in comets. This includes discussion about visual, photographic and CCD observing as well as about astrometric, orbital, photometric, hunting or historical aspects. Observations have to be posted at our parallel list CometObs, images at our parallel list Comet-Images.

There is a special repository for important contributions which contains special guidelines and most helpful list contributions for comet observers which can be found at

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