· Get a Cloudy Nights T-Shirt · Submit a Review / Article    Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy 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] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing Previous   Index   Next   Threaded   Pages: 1 Orion_PKFD sage Reged: 01/22/08 Posts: 426 Loc: Vieira do Minho, Portugal Perseus Double Cluster       #3393371 - 10/16/09 04:59 PM Edit   Reply   Quote Quick Reply   Hi folks, This is a "quicky" taken on September 27: SkyView Pro 8" f/5 12x30s 20 Darks Bigger version and description at: http://astro-andregoncalves.blogspot.com/2009/10/perseus-double-cluster.html Comments and suggestions are welcome! Regards, André Gonçalves -------------------- André Gonçalves http://astro-andregoncalves.blogspot.com/ SkyView Pro 8" EQ Dob 4,5" (ATM) 60mm achromatic refractor 10x50 WA 10x25 SPC900NC DSI Canon 1000D Post Extras:       Astroade76 member Reged: 08/12/09 Posts: 45 Loc: England Re: Perseus Double Cluster [Re: Orion_PKFD]       #3393385 - 10/16/09 05:09 PM Edit   Reply   Quote Quick Reply   nice image Andre, this is a lovely double cluster to view or image, nice work -------------------- Ade LXD75 SNT10 (imaging scope) Skywatcher evostar ED80 pro (imaging scope) LXD75 mount 9x50 Finderscop (guide-scope) Sony A300 DSLR (imager) Meade LPI (guide camera and some imaging) Orion dew zapper (without this its an early night) Selection of eyepeices, flatteners/reducers and filters Post Extras:       Stardaug professor emeritus Reged: 08/03/08 Posts: 531 Loc: Ontario, Canada Re: Perseus Double Cluster [Re: Astroade76]       #3393459 - 10/16/09 05:58 PM Edit   Reply   Quote Quick Reply   Really nice work! -------------------- "Keep looking up!" Shawn / Ontario, Canada Celestron CPC800 SCT w/XLT & GPS // Skywatcher Equinox 80ED F6.25 500mm APO // Canon Rebel 350XT unmodded // Milburn EQ Wedge (a Meade model modified to fit my CPC) Post Extras:       Orion_PKFD sage Reged: 01/22/08 Posts: 426 Loc: Vieira do Minho, Portugal Re: Perseus Double Cluster [Re: Stardaug]       #3394188 - 10/17/09 08:28 AM Edit   Reply   Quote Quick Reply   Thank you very much for the kind words André Gonçalves -------------------- André Gonçalves http://astro-andregoncalves.blogspot.com/ SkyView Pro 8" EQ Dob 4,5" (ATM) 60mm achromatic refractor 10x50 WA 10x25 SPC900NC DSI Canon 1000D Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3459 Loc: Santa Cruz Mountains , CA Re: Perseus Double Cluster [Re: Orion_PKFD]       #3394408 - 10/17/09 11:24 AM Edit   Reply   Quote Quick Reply   This is well shot and processed , good star color and I even like the spikes on this one. -------------------- Erik Orion Atlas Self Hypertuned (EQMOD) Orion ED 80 Williams Optics VII reducer Celestron 8" SCT Orion Starshoot Autoguider PHD guide Canon 400D Hap Griffin Mod w/Baader filter Astronomik clip-in LP filter and 12nm Ha Stilleto CVF and Bahtinov mask Tamron 75-300mm&28-80mm lenses NexImage webcam http://www.flickr.com/photos/31986095@N05/ Post Extras:       Orion_PKFD sage Reged: 01/22/08 Posts: 426 Loc: Vieira do Minho, Portugal Re: Perseus Double Cluster [Re: Nils_Lars]       #3394738 - 10/17/09 02:45 PM Edit   Reply   Quote Quick Reply   Thank you very much Erik. Let me just ask you guys a question: The stars on the left are more elongated than on the right, why? Coma? Flexure, because it isn't equal on both sides? -------------------- André Gonçalves http://astro-andregoncalves.blogspot.com/ SkyView Pro 8" EQ Dob 4,5" (ATM) 60mm achromatic refractor 10x50 WA 10x25 SPC900NC DSI Canon 1000D Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3459 Loc: Santa Cruz Mountains , CA Re: Perseus Double Cluster [Re: Orion_PKFD]       #3395254 - 10/17/09 09:48 PM Edit   Reply   Quote Quick Reply   If it was coma it would be even in all corners , my guess would be slight camera miss alignment. Thats easy to do with the camera adapter in the drawtube , I bought an adapter from Hotech that is supposed to eliminate that. -------------------- Erik Orion Atlas Self Hypertuned (EQMOD) Orion ED 80 Williams Optics VII reducer Celestron 8" SCT Orion Starshoot Autoguider PHD guide Canon 400D Hap Griffin Mod w/Baader filter Astronomik clip-in LP filter and 12nm Ha Stilleto CVF and Bahtinov mask Tamron 75-300mm&28-80mm lenses NexImage webcam http://www.flickr.com/photos/31986095@N05/ Post Extras:       Orion_PKFD sage Reged: 01/22/08 Posts: 426 Loc: Vieira do Minho, Portugal Re: Perseus Double Cluster [Re: Nils_Lars]       #3401612 - 10/21/09 06:42 AM Edit   Reply   Quote Quick Reply   What caused the misalignment? The camera weight on the tube of the focuser? I found that in other pictures, the elongated stars appeared always in the same side. Can you show me the link to it, and how it works? It will need more infocus? Thanks, André Gonçalves -------------------- André Gonçalves http://astro-andregoncalves.blogspot.com/ SkyView Pro 8" EQ Dob 4,5" (ATM) 60mm achromatic refractor 10x50 WA 10x25 SPC900NC DSI Canon 1000D Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 6 registered and 8 anonymous users are browsing this forum. 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