I still have my 32-scale chartreuse Pickett from my college days. Even has a leather holster! Richard Harshaw Cave Creek, AZ -----Original Message----- From: az-observing-bounce@xxxxxxxxxxxxx [mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Wayne Westlake Sent: Thursday, February 26, 2009 3:05 PM To: az-observing@xxxxxxxxxxxxx Subject: [AZ-Observing] Re: Comet Lulin this morning Sounds like something that would require the use of a slide rule! ; ] Wayne Westlake On Thu, Feb 26, 2009 at 3:01 PM, Richard Harshaw <rharshaw2@xxxxxxx> wrote: > Wonderful image, Chris! > > I suppose that if we know it is a 40-minute exposure with 5-minute > sub-frames, it would be possible to calculate the comet's tangential > displacement and then, knowing the ephemerids, compute the true space > velocity... but I don't feel that ambitious today. > > > Richard Harshaw > Cave Creek, AZ > > > -----Original Message----- > From: az-observing-bounce@xxxxxxxxxxxxx > [mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Chris Schur > Sent: Thursday, February 26, 2009 2:57 PM > To: Rik Hill; Az Observng list; gallery@xxxxxxxxxxxxxxxxxxx; Jerry Bonnell > APOD; Joe Orman; Wayne Johnson; Albert Levy; John O'Farrell; Thelma/John > Ofarrell; Rich Jacobs; Robert Nemiroff APOD > Subject: [AZ-Observing] Comet Lulin this morning > > Here is my shot of comet Lulin at its peak brightness this morning, rapidly > approaching Regulus, it is moving very fast and can be seen streaking past > the colorful stars: > > http://www.schursastrophotography.com/xtiastro/lulin022609.html > > > Comments? > > Chris > > > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > > > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > > -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.