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ASTRO: Potentially four new dark blobs discovered in Dream Machine test shot from Stinger 450
initially I thoiught the two blobs by the stars were noise or dust
particles, but they are not http://www.narrowbandimaging.com/cri...c1396_page.htm |
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ASTRO: Potentially four new dark blobs discovered in Dream Machine test shot from Stinger 450
"Richard Crisp" wrote in message t... initially I thoiught the two blobs by the stars were noise or dust particles, but they are not http://www.narrowbandimaging.com/cri...c1396_page.htm Great work, Richard. By the way, anytime you get tired of that Stinger... :-) George |
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ASTRO: Potentially four new dark blobs discovered in Dream Machine test shot from Stinger 450
well now that you mention it George: I built two at the same time: one for
me and one for a friend. The friend is moving to a place where he cannot set up an observatory and he has discussed possibly selling it If you are interested I can introduce the two of you "George" wrote in message ... "Richard Crisp" wrote in message t... initially I thoiught the two blobs by the stars were noise or dust particles, but they are not http://www.narrowbandimaging.com/cri...c1396_page.htm Great work, Richard. By the way, anytime you get tired of that Stinger... :-) George |
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ASTRO: Potentially four new dark blobs discovered in Dream Machinetest shot from Stinger 450
I can see Crisp-Venter1 and 2 as well as Croft-Crisp-Howell1 in the
POSS1 and 2 red plates. POSS1 shows them the best even if at a lower scale. Not able to see Crisp4 however but the contrast may be too low. I'm not even sure I see it in your shot. They do show better in your shot than either of the POSS plates. If it ever stops snowing I will see what my darker skies show here. I am normally about mag 6.5 if no moon or northern lights. Rick Richard Crisp wrote: initially I thoiught the two blobs by the stars were noise or dust particles, but they are not http://www.narrowbandimaging.com/cri...c1396_page.htm -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
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ASTRO: Potentially four new dark blobs discovered in Dream Machine test shot from Stinger 450
the funny thing Rick is that these were shot in a suburban backyard under a
near full moon and it still goes deeper than DSS of course they have a lot of sky to cover so they can't spend 3.5 hours per aiming probably using the Dream machine I got it done in 3.5 hours. had I used the Maxcam it may have been more like 15 hours to get the same depth "Rick Johnson" wrote in message ... I can see Crisp-Venter1 and 2 as well as Croft-Crisp-Howell1 in the POSS1 and 2 red plates. POSS1 shows them the best even if at a lower scale. Not able to see Crisp4 however but the contrast may be too low. I'm not even sure I see it in your shot. They do show better in your shot than either of the POSS plates. If it ever stops snowing I will see what my darker skies show here. I am normally about mag 6.5 if no moon or northern lights. Rick Richard Crisp wrote: initially I thoiught the two blobs by the stars were noise or dust particles, but they are not http://www.narrowbandimaging.com/cri...c1396_page.htm -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
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ASTRO: Potentially four new dark blobs discovered in Dream Machine test shot from Stinger 450
"Richard Crisp" wrote in message . .. well now that you mention it George: I built two at the same time: one for me and one for a friend. The friend is moving to a place where he cannot set up an observatory and he has discussed possibly selling it If you are interested I can introduce the two of you Umm, I was thinking more of a charitible donation. :-) Sorry for the confusion. George "George" wrote in message ... "Richard Crisp" wrote in message t... initially I thoiught the two blobs by the stars were noise or dust particles, but they are not http://www.narrowbandimaging.com/cri...c1396_page.htm Great work, Richard. By the way, anytime you get tired of that Stinger... :-) George |
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ASTRO: Potentially four new dark blobs discovered in Dream Machine test shot from Stinger 450
It pays to get a good close view... neat stuff.
-- Regards, Doug W. www.photonsfate.com -- "Richard Crisp" wrote in message t... initially I thoiught the two blobs by the stars were noise or dust particles, but they are not http://www.narrowbandimaging.com/cri...c1396_page.htm |
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ASTRO: Potentially four new dark blobs discovered in Dream Machine test shot from Stinger 450
"Richard Crisp" wrote
.... the funny thing Rick is that these were shot in a suburban backyard under a near full moon and it still goes deeper than DSS of course they have a lot of sky to cover so they can't spend 3.5 hours per aiming probably Rick, Richard, et al: Don't forget those POSS shots are film. The 48" goes a lot deeper now with CCD. Those little dark clouds are so small that they might surround individual proto-stars! Cool stuff. George N |
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ASTRO: Potentially four new dark blobs discovered in Dream Machine test shot from Stinger 450
Richard,
you'll become the king of the dark blobs if you discover any more ;-) With the kind of exposure time you put into your images you certainly can go for the exotic stuff. I'm looking forward to your next findings. Stefan "Richard Crisp" schrieb im Newsbeitrag t... initially I thoiught the two blobs by the stars were noise or dust particles, but they are not http://www.narrowbandimaging.com/cri...c1396_page.htm |
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ASTRO: Potentially four new dark blobs discovered in Dream Machine test shot from Stinger 450
thanks Stefan
Actually this wasn't too long really: it was only 3.5 hours the Dream Machine is like a photon vacuum cleaner using the maxcam I estimate it would have taken nearly 9 times longer to get to the same saturation level based solely on pixel size and QE considerations. of course the Maxcam is sampling at 0.42 arc-sec/pixel versus 1.47 using the DM one night when the seeing is good it would be fun to shoot with the Maxcam binned 2x2 at f/7.1 to get 0.84 ASP and then pop out the focal reducer and shoot the DM at f/12.6 for 0.86 ASP and see how they stack up "Stefan Lilge" wrote in message ... Richard, you'll become the king of the dark blobs if you discover any more ;-) With the kind of exposure time you put into your images you certainly can go for the exotic stuff. I'm looking forward to your next findings. Stefan "Richard Crisp" schrieb im Newsbeitrag t... initially I thoiught the two blobs by the stars were noise or dust particles, but they are not http://www.narrowbandimaging.com/cri...c1396_page.htm |
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