· Get a Cloudy Nights T-Shirt · Submit a Review / Article Click here if you are having trouble logging into the forums Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Astrophotography and Sketching >> Sketching Previous   Index   Next   Threaded   Pages: 1 Special Ed Postmaster Reged: 05/18/03 Loc: Greenbrier Co., WV 38N, 80W Comet C17P/Holmes animation       #5642904 - 01/25/13 04:15 PM Attachment (66 downloads) Edit   Reply   Quote Quick Reply   Hi Everyone, I had the day off because school was closed due to the extreme cold, windy, and snowy weather so I had the chance to work on an animation project I've been thinking about for a couple of years. Also, I was prompted by seeing the animation of Erika's Luna/Jupiter sequence on LPOD. The program made it very easy to creat an animation. Here's a link: http://gifmaker.me/ You may recall back in the fall of 2007 that periodic comet C17P/Holmes went into outburst causing its magnitude and coma to both increase dramatically. I was able to make 3 field sketches over a 5 day timespan using the same telescope and eyepiece which provided an opportunity to watch the expanding coma fill and then overflow the FOV. This is the first time I've used gifmaker so it's quick and dirty. The original sketches were scanned at slightly different sizes which the animation makes apparent. Also there is a typo on the third sketch--the FOV is 12' in all three drawings. The orientation isn't the same in the first drawing either. Feedback is welcome. Let me know if these flaws are a problem. Perhaps I can go back to the originals and resize them for uniformity--maybe do something about that orientation, too. Holmes was an exciting comet to observe. I hope this brings back some good memories for some of you as it did for me. Here is the animation: Post Extras:       Andrev Carpal Tunnel Reged: 02/08/11 Loc: Montreal, Quebec, Canada Re: Comet C17P/Holmes animation [Re: Special Ed]       #5643056 - 01/25/13 05:51 PM Edit   Reply   Quote Quick Reply   That give something special and interesting. Fun to watch. Andre. Post Extras:       azure1961p Postmaster Reged: 01/17/09 Loc: USA Re: Comet C17P/Holmes animation [Re: Andrev]       #5643109 - 01/25/13 06:28 PM Edit   Reply   Quote Quick Reply   Wow that's superb!!!!!!! Pete Post Extras:       PeterDob professor emeritus Reged: 07/29/05 Loc: Carù, Italy Re: Comet C17P/Holmes animation [Re: azure1961p]       #5643658 - 01/26/13 12:54 AM Edit   Reply   Quote Quick Reply   Don't worry about the so-called flaws in the animation, Michael. The main point is to bring across the evolution of the comet and you caught that beautifully. I'm seriously impressed! Peter Post Extras:       Jef De Wit Carpal Tunnel Reged: 03/06/09 Loc: Hove, Belgium Re: Comet C17P/Holmes animation [Re: PeterDob]       #5643819 - 01/26/13 05:31 AM Edit   Reply   Quote Quick Reply   This brings back fine memories! It was my first comet that I observed. And the only comet that I saw with the naked eye. Post Extras:       Chopin Canis Insanus Reged: 02/03/05 Loc: In the doghouse. Re: Comet C17P/Holmes animation [Re: Jef De Wit]       #5643856 - 01/26/13 06:46 AM Edit   Reply   Quote Quick Reply   Terrific memories indeed, Michael! It stands as the only comet that I have followed and sketched. Looking at your drawings brings me back to the eyepiece. Post Extras:       Laurent Ferrero member Reged: 12/28/12 Loc: Marseilles, France Re: Comet C17P/Holmes animation [Re: Special Ed]       #5643900 - 01/26/13 07:54 AM Edit   Reply   Quote Quick Reply   This very nice animation. This is a good memory this comet. Hopefully the Panstarr we reserve also a good show in March. Post Extras:       Special Ed Postmaster Reged: 05/18/03 Loc: Greenbrier Co., WV 38N, 80W Re: Comet C17P/Holmes animation [Re: Laurent Ferrero]       #5643971 - 01/26/13 08:47 AM Edit   Reply   Quote Quick Reply   Thank you all for the very kind words. Holmes was indeed a fantastic comet to observe and follow with many variations in its overall appearance as the outer coma expanded. For those who said this was their first comet--you picked a dandy! Caveat--don't expect them all to be like this... Thanks for joining me on memory lane. @Jef--I had the pleasure of pointing out the comet with the unaided eye to some amateur and non-amateur friends one night after a community action meeting we were attending--they loved it. Post Extras:       niteskystargazer Carpal Tunnel Reged: 10/05/09 Loc: 41-43'-28" N 87-42'-39" W Re: Comet C17P/Holmes animation [Re: Special Ed]       #5644613 - 01/26/13 03:35 PM Edit   Reply   Quote Quick Reply   Michael, Very good sketches of Comet C17P/ Holmes . CS,KLU, , Tom Post Extras:       bumm sage Reged: 01/07/11 Loc: Iowa Re: Comet C17P/Holmes animation [Re: niteskystargazer]       #5645204 - 01/26/13 10:17 PM Edit   Reply   Quote Quick Reply   Very nice! It shows the sequence very well! For me, right after it's outburst, Holmes was a sort of cosmic muffin, with an oddly sharp outline, which then grew into a sort of seed pod which slowly started blowing out on one side. I can remember watching the little "christmas tree" evolve inside of it too... Post Extras:       Special Ed Postmaster Reged: 05/18/03 Loc: Greenbrier Co., WV 38N, 80W Re: Comet C17P/Holmes animation [Re: bumm]       #5645557 - 01/27/13 07:23 AM Edit   Reply   Quote Quick Reply   Tom and bumm, thank you much. bumm--Holmes did have an oddball shape. Some people said it looked like one of those fossils called a trilobite. Post Extras:       Special Ed Postmaster Reged: 05/18/03 Loc: Greenbrier Co., WV 38N, 80W Re: Comet C17P/Holmes animation<>Version 2 [Re: Special Ed]       #5646107 - 01/27/13 01:42 PM Attachment (13 downloads) Edit   Reply   Quote Quick Reply   I fooled around a little more with my animation today. I went back to the scanned drawings and corrected the orientation of the first sketch to match the other two. I also tried to resize the drawings so they are all closer to the same size. It is probably a good idea to pay attention when scanning and resizing original sequence drawings so that they are similar in dimension. It will be easier to match them up if you ever want to put together an animation. If anyone has some sequential drawings, I hope you try an animation and post it in the forum. I know Erika has posted some prom sequences in the past that she animated. The animation process is also particularly good for white light and Ha versions of solar sketches--you can see and compare the view of different layers of the Sun. Posting digitized sketches on the Internet gives us a unique opportunity to employ the animation process. Here is version 2. It's still kind of jumpy but I think it is an improvement. Comments and criticism welcome. Post Extras:       frank5817 Postmaster Reged: 06/13/06 Loc: Illinois Re: Comet C17P/Holmes animation<>Version 2 [Re: Special Ed]       #5646975 - 01/27/13 09:24 PM Edit   Reply   Quote Quick Reply   Michael, The redo works much better. You can easily see that if you plan out a series of sketches in advance you can create some great animations if the weather cooperates. Jupiter and Mars rotations would be examples as would crater shadow changes on the Moon. Great to see this comet again. Frank Post Extras:       Special Ed Postmaster Reged: 05/18/03 Loc: Greenbrier Co., WV 38N, 80W Re: Comet C17P/Holmes animation<>Version 2 [Re: frank5817]       #5653989 - 01/31/13 10:10 AM Edit   Reply   Quote Quick Reply   Frank, Thanks. I agree with you about planning the sessions and you mention some great subjects for animation. Maybe we'll see one from you soon? I wish my computer skills weren't so limited but maybe this old dog can find the time to learn some new tricks. Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 1 registered and 2 anonymous users are browsing this forum. Moderator:  Undermidnight, cildarith  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 915 Jump to *Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Celestial Events*General Astronomy* -----   Beginners Forum   General Observing and Astronomy   Outreach   Light Pollution*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning and Intermediate Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *Observing* -----   NEO   Planetary and Solar System Observing   Lunar Observing   Deep Sky Observing   Double Star Observing   Solar   Variable Star Observing and Radio Astronomy*Telescope Specific Forums* -----   Celestron NexStar    NexStar GPS / CPC Telescopes   Questar Forum   Meade ACF/RCX / LX / GPS    Meade ETX*Speciality Forums* -----   Arizona Science and Astronomy Expo   NEAF (Northeast Astronomy Forum) and NEAIC (Northeast Astro Imaging Conference)   AstroArt   Astronomy Clubs and Star Parties   Astronomy Software & Computers   AstroWebsites   Science! Astronomy & Space Exploration, and Others   Space Rocks   Stellar Media*Swap and Shop* -----   Shop and Swap Audio Components*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements*International Year of Astronomy 2009 - Forums are now closed.* -----   IYA Archive Info CN Forums Home

Cloudy Nights LLC Cloudy Nights Sponsor: Astronomics