Loading ...
Sorry, an error occurred while loading the content.
  • Back
  • About Group

  • Join Group
3 members, 36 messages added in the last 7 days
New MessagesSee All
  • Re: C/2013 US10 Nov.24 LRGB

    Rob. There was a full moon in late August that may have contributed to decreased coma size. Also for Guide software users, simulating the dust trail is easy.

    cometmanau 1 day ago
  • Re: C/2013 US10 Nov.24 LRGB

    Thanks Thomas, nice work! Here's a link to my pre-perihelion coma sizes. While they may not accurately convey sizes obtained with deep CCD photography, I've

    kaufman_rob 1 day ago
  • Re: C/2013 US10 Nov.24 LRGB

    Rob, thanks for pointing out the pre-perihelion coma size development. I just prepared a plot showing (some) available data:

    1 day ago
Fetching Sponsored Content...

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

Special Contributions

Group Information

Group Settings

  • This is a public group.
  • Attachments are not permitted.
  • Members cannot hide email address.
  • Listed in Yahoo Groups directory.
  • Membership does not require approval.
  • Messages from new members require approval.
  • All members can post messages.

Message History