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PHOTO OF THE WEEK, M33 Hires
This week we continue our tour of the Pinwheel Galaxy in Triangulum with a
high resolution color image taken through the 10" telescope js PHOTO OF THE WEEK... http://schmidling.netfirms.com/weekly.htm HOME, Astro, Beer, Cheese, http://schmidling.netfirms.com |
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Jack Schmidling wrote:
This week we continue our tour of the Pinwheel Galaxy in Triangulum with a high resolution color image taken through the 10" telescope js PHOTO OF THE WEEK... http://schmidling.netfirms.com/weekly.htm HOME, Astro, Beer, Cheese, http://schmidling.netfirms.com You took that with a 4 1/2 inch telescope? Thats very impressive! How do you get it to come out so good? I've got a 4.5 and most of what i see is not too great. I spent awhile looking at Mars when it was closest back in December and i think i could see the polar icecap. I found Saturn and can see the rings but its pretty small. I dont think i can see Saturns moons, or Mars moons either. I'm still waiting for a decent night and then i plan to hunt down Jupiter if its above the horizon, i also want to take a closeup look at the Moon (ours). Its tough finding good conditions here, I'm in Olympia WA, the Great North Wet. Eric |
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"Eric" wrote in message
news:x3KNb.77352$8H.114874@attbi_s03... Jack Schmidling wrote: This week we continue our tour of the Pinwheel Galaxy in Triangulum with a high resolution color image taken through the 10" telescope js PHOTO OF THE WEEK... http://schmidling.netfirms.com/weekly.htm HOME, Astro, Beer, Cheese, http://schmidling.netfirms.com You took that with a 4 1/2 inch telescope? Thats very impressive! How do you get it to come out so good? I've got a 4.5 and most of what i see is not too great. I spent awhile looking at Mars when it was closest back in M33 is a large object and that means you need low magnification to get its full extent in a single image frame, particularly so if your imaging sensor is smallish. For visual work you can use different eyepieces to get different fields of view, but for imaging with a single camera, you usually have to use different focal length scopes and or focal reducers/barlows to get an optimum framing of the object you intend to image. For M33 and the even larger M31, usually the problem is how to get such a short focal length so that it will all fit in a single field of view. The solution to that is often using a small diameter refractor, particularly so if your sensor in the camera is not too big. Although it may seem odd, the 4" refractor is nearly ideal for many many large objects. Included in the list is M31, M33, M45, M101, M42/M43, Flame/Horsehead, IC1396, Rosette, The Veil and a host of other large, extended objects. Jack does a great job with his system and I always enjoy seeing his images. best regards Richard |
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