· 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 Mobius1 professor emeritus Reged: 08/28/05 Posts: 700 Loc: Madison, WI / Gurnee, IL Galaxies with the 24"       #3401432 - 10/21/09 01:20 AM Attachment (19 downloads) Edit   Reply   Quote Quick Reply   Here's a few more images using the 24" Cassegrain at Yerkes Observatory. First up, M81, taken in March of 2006. This is actually my FIRST EVER astrophoto taken with a DSLR. It was a Canon 350D, mounted to an Orion Deepview 42mm EP, exposed 600 seconds at ISO 1600. -------------------- Martin William Optics 66SD Orion 100ED Orion 120-ST EQ PST-Ha Celestron CGE 1100 Canon Rebel XSI with Astronomik filters DSI-IIC Homemade spectroscope in progress... Yerkes Observatory Volunteer (24" Cass on weekends) Post Extras:       Mobius1 professor emeritus Reged: 08/28/05 Posts: 700 Loc: Madison, WI / Gurnee, IL Re: Galaxies with the 24" [Re: Mobius1]       #3401436 - 10/21/09 01:23 AM Attachment (18 downloads) Edit   Reply   Quote Quick Reply   Next up, M82 taken in February of 2007. Same camera setup, 350D and 42mm Deepview. Exposed 1200 seconds, ISO 1600, hence you can see the camera sensor bleeding out in the red. Only had time for a single good frame, but I actually used this in a freshman research paper that year about CO, HCO+, and NH2 distribution in M82. -------------------- Martin William Optics 66SD Orion 100ED Orion 120-ST EQ PST-Ha Celestron CGE 1100 Canon Rebel XSI with Astronomik filters DSI-IIC Homemade spectroscope in progress... Yerkes Observatory Volunteer (24" Cass on weekends) Post Extras:       Mobius1 professor emeritus Reged: 08/28/05 Posts: 700 Loc: Madison, WI / Gurnee, IL Re: Galaxies with the 24" [Re: Mobius1]       #3401440 - 10/21/09 01:25 AM Attachment (16 downloads) Edit   Reply   Quote Quick Reply   And here's NGC 891 from this year, May, using a Canon 450D through a WO 40mm SWAN EP. Two exposures combined (in addition), one of 800 seconds, and one of 1200 seconds (so 2000s total). A bit noisy, had the long exposure noise reduction off (it would have slowed me down insanely). -------------------- Martin William Optics 66SD Orion 100ED Orion 120-ST EQ PST-Ha Celestron CGE 1100 Canon Rebel XSI with Astronomik filters DSI-IIC Homemade spectroscope in progress... Yerkes Observatory Volunteer (24" Cass on weekends) Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3443 Loc: Santa Cruz Mountains , CA Re: Galaxies with the 24" [Re: Mobius1]       #3401490 - 10/21/09 02:38 AM Edit   Reply   Quote Quick Reply   Very cool you get access to such a big scope , nice afocal shots Martin. -------------------- 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:       Mobius1 professor emeritus Reged: 08/28/05 Posts: 700 Loc: Madison, WI / Gurnee, IL Re: Galaxies with the 24" [Re: Nils_Lars]       #3401548 - 10/21/09 04:30 AM Edit   Reply   Quote Quick Reply   Thanks Erik! I admit that using the 24" is making me want to trade my C11 for a C14, I'm a bit spoiled by aperture. -------------------- Martin William Optics 66SD Orion 100ED Orion 120-ST EQ PST-Ha Celestron CGE 1100 Canon Rebel XSI with Astronomik filters DSI-IIC Homemade spectroscope in progress... Yerkes Observatory Volunteer (24" Cass on weekends) Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 9 registered and 13 anonymous users are browsing this forum. 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