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ASTRO: NGC2903 color
I cobbled together a color version of NGC2903 the past few nights
I have a lot more red data than I do blue and green but it came out OK so I may stop now here's where to find it: http://www.narrowbandimaging.com/ngc..._crgb_page.htm it is a total of 95 x 5 minutes 47 x 5 minutes was unfiltered luminance and the rest was RGB |
#2
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ASTRO: NGC2903 color
Richard Crisp wrote: I cobbled together a color version of NGC2903 the past few nights I have a lot more red data than I do blue and green but it came out OK so I may stop now here's where to find it: http://www.narrowbandimaging.com/ngc..._crgb_page.htm it is a total of 95 x 5 minutes 47 x 5 minutes was unfiltered luminance and the rest was RGB I was wondering when we'd see the color version. Looks great. Was that binned 2x2? Mine is way too blue. I didn't have the processing know-how or skills I have today and couldn't do a good job of compensating for my blue sensitivity so things tended to be too blue. That was my blue period I suppose. I only had 15x5 images, 6 of which were L. I need to go back and reprocess it. Better yet, retake it on a better night. I finally have a clear night and seeing is good too! Will wonders ever cease? Working on 3718 and the Hickson group below it. One I've started many times only to get goofed up by something. 4 aborts last year and one this so far. Hope the snow that's forecast for later tonight holds off. Tried a couple nights ago but after only 20 minutes the guide star faded away. I went out to see if it was only temporary and found it was already snowing. Seemed to take forever for the scope go reach park and it went through the zenith on the way letting in more snow. Fortunately it was cold enough it didn't melt and a blast of air from my portable, filtered air tank blew it all off the corrector without harm. It was snowing while I still had a guide star! Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
#3
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ASTRO: NGC2903 color
"Rick Johnson" wrote in message ... Richard Crisp wrote: I cobbled together a color version of NGC2903 the past few nights I have a lot more red data than I do blue and green but it came out OK so I may stop now here's where to find it: http://www.narrowbandimaging.com/ngc..._crgb_page.htm it is a total of 95 x 5 minutes 47 x 5 minutes was unfiltered luminance and the rest was RGB I was wondering when we'd see the color version. Looks great. Was that binned 2x2? Hey thanks for the comment Rick. Yes it was binned 2x2. Unless the seeing is exceptional I run 2x2. That works out to be about 0.84 arc-sec/pixel. Binned 1x1 is 0.42"/pixel so it is nice when the seeing is good. Mine is way too blue. I didn't have the processing know-how or skills I have today and couldn't do a good job of compensating for my blue Don't we all sing that tune :-) You just described my entire collection of galaxy images. I never really got into them once I got going on nebulae with emission line filters in suburban skies (bright). That kept me busy for about four years so far. sensitivity so things tended to be too blue. That was my blue period I suppose. I only had 15x5 images, 6 of which were L. I need to go back and reprocess it. Better yet, retake it on a better night. I finally have a clear night and seeing is good too! Will wonders ever That's great. I hope you can get a good one from that torturingly cold place you do your imaging (brr) cease? Working on 3718 and the Hickson group below it. One I've started many times only to get goofed up by something. 4 aborts last year and one this so far. Hope the snow that's forecast for later tonight holds off. Tried a couple nights ago but after only 20 minutes the guide star faded away. I went out to see if it was only temporary and found it was already snowing. Seemed to take forever for the scope go reach park and it went through the zenith on the way letting in more snow. Fortunately it was cold enough it didn't melt and a blast of air from my portable, filtered air tank blew it all off the corrector without harm. It was snowing while I still had a guide star! Snow, what's that? we're in the middle of spring out here. rdc |
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ASTRO: NGC2903 color
Richard Crisp wrote: "Rick Johnson" wrote in message ... Richard Crisp wrote: I cobbled together a color version of NGC2903 the past few nights I have a lot more red data than I do blue and green but it came out OK so I may stop now here's where to find it: http://www.narrowbandimaging.com/ngc..._crgb_page.htm it is a total of 95 x 5 minutes 47 x 5 minutes was unfiltered luminance and the rest was RGB I was wondering when we'd see the color version. Looks great. Was that binned 2x2? Hey thanks for the comment Rick. Yes it was binned 2x2. Unless the seeing is exceptional I run 2x2. That works out to be about 0.84 arc-sec/pixel. Binned 1x1 is 0.42"/pixel so it is nice when the seeing is good. Mine is way too blue. I didn't have the processing know-how or skills I have today and couldn't do a good job of compensating for my blue Don't we all sing that tune :-) You just described my entire collection of galaxy images. I never really got into them once I got going on nebulae with emission line filters in suburban skies (bright). That kept me busy for about four years so far. sensitivity so things tended to be too blue. That was my blue period I suppose. I only had 15x5 images, 6 of which were L. I need to go back and reprocess it. Better yet, retake it on a better night. I finally have a clear night and seeing is good too! Will wonders ever That's great. I hope you can get a good one from that torturingly cold place you do your imaging (brr) cease? Working on 3718 and the Hickson group below it. One I've started many times only to get goofed up by something. 4 aborts last year and one this so far. Hope the snow that's forecast for later tonight holds off. Tried a couple nights ago but after only 20 minutes the guide star faded away. I went out to see if it was only temporary and found it was already snowing. Seemed to take forever for the scope go reach park and it went through the zenith on the way letting in more snow. Fortunately it was cold enough it didn't melt and a blast of air from my portable, filtered air tank blew it all off the corrector without harm. It was snowing while I still had a guide star! Snow, what's that? we're in the middle of spring out here. rdc We may have snow and cold but we don't have earthquakes. I've felt minor ones every time I've been out your way, which isn't often thankfully. I take cold better than heat as well. Cops put a limit on the cloths you can take off. Causes folks to point and laugh as well. But you can keep piling on the winter coats until you are comfortable. I can be comfortable at -30C if there's little wind but I start to suffer at +30C! But then I'm well insulated naturally. Rick -- 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: NGC2903 color
"Richard Crisp" wrote ... I cobbled together a color version of NGC2903 the past few nights....... Great image Richard! I love this galaxy. I can remember showing it to people with an Edmund Astroscan 4.25" just to prove that Messier should have found it! .....of course I was using a Nagler eyepiece that cost more than the scope....... George N |
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ASTRO: NGC2903 color
"Rick Johnson" wrote
.............. ......... That was my blue period I suppose......... LOL!!!! I guess that's why some people just stick with B&W imaging! George N |
#7
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ASTRO: NGC2903 color
"Richard Crisp" wrote ....... Snow, what's that? ........ Richard, (and other warm-weather readers): Just to answer your question, check out the attached picture! This picture was taken for the Kopernik Obs "Weather Watch imaging contest" by a local high school girl. It was taken about a week ago in Syracuse NY, and an hour drive north of here. George N |
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ASTRO: NGC2903 color
"Rick Johnson" wrote ....... We may have snow and cold but we don't have earthquakes....... Rick, et al: New York must be "twice as lucky"....... Syracuse is the snowiest big city in the US and we *do* have earthquakes. I've had broken windows and dishes and other damage twice in the house I rent in the Adirondacks from earthquakes (and where the snow pack is over 3 feet deep right now), and a few years ago a two-lane road was lost when a quake dropped it down a valley. The Northeast is supposedly about a hundred years over-do for a big quake - the last one was in the mid 1750's, with considerable damage to Boston. George N |
#9
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ASTRO: NGC2903 color
brr.....
"George Normandin" wrote in message ... "Richard Crisp" wrote ....... Snow, what's that? ....... Richard, (and other warm-weather readers): Just to answer your question, check out the attached picture! This picture was taken for the Kopernik Obs "Weather Watch imaging contest" by a local high school girl. It was taken about a week ago in Syracuse NY, and an hour drive north of here. George N |
#10
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ASTRO: NGC2903 color
"George Normandin" wrote in message ... "Richard Crisp" wrote ... I cobbled together a color version of NGC2903 the past few nights....... Great image Richard! thanks George I love this galaxy. I can remember showing it to people with an Edmund Astroscan 4.25" just to prove that Messier should have found it! .....of course I was using a Nagler eyepiece that cost more than the scope....... that's a Nagler all-right..... George N |
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