Yikes, I can't remember! It's a pic I did quite a while ago in 2012, but didn't post in the SLAS gallery because I wanted it to be a surprise when I "won" the photo contest. So I entered it in the contest, but it didn't win. Now I don't have the details available -- but it was a great many exposures. All were fairly short because otherwise the stars would flare, but some were much shorter than others. Those shortest exposures are the ones that provided info about the Trapezium. Thanks, Joe ________________________________ From: "jcarman6@q.com" <jcarman6@q.com> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Tuesday, January 22, 2013 9:15 PM Subject: [Utah-astronomy] Moon-Jupiter photo op VERY NICE! Joe.  (orion nebula)  How many exposures did you layer?  The same one or different ones?  Noticed you picked up some fainter nebulosity beyond the traditional limits.  Hmmm, key detail revealed??   _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".