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#1
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NGC 488 You are getting sleepy
This one reminds me of a hypnotist's spiral.
NGC 488 is a tightly wound spiral (SA(r)b) located in Pisces about 90 million light years away by red shift measurement or 95 by Tully-Fisher analysis of its rotation rate. Being nearly face on that must be a tough measurement. It seems to be made up of mostly arm segments that go only about half way around then fuzz out. Still I seem to see but one continuous spiral if I follow the fuzz between segments. This is easier to do if the image is enlarged some. Unfortunately, seeing wasn't all that good so I had to limit my enlargement to only 33% or 0.75" per pixel. The field isn't covered by the Sloan Digital Sky Survey so few of the galaxies are cataloged. I've labeled all that are and include distance data for those few that had it. One galaxy cluster (GC) is annotated in the image. The line points to its center. NED shows it containing 17 galaxies but gives no size. It shows it as about 3 billion light years distant. Most members in my image appear to be east of the center. There is one "bright" asteroid of 19th magnitude and several of 20th. Due to the bad seeing and low transparency as well as their rapid motion they are far fainter than normal. I didn't label the 20th magnitude ones. The gap in the trail is due a meridian flip 20 minutes into the image. On cold winter nights like this one (outside temperature was below -30C) I slew at only 30% normal speed. That means a couple minute delay in the flip. The gap is longer than this as I apparently allowed 7 minutes for the flip instead of the 3 I usually program in. 14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME 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". |
#2
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NGC 488 You are getting sleepy
Rick,
this galaxy is similar to NGC 2841 as it also needs good detail to show any detail at all. You did much better than I was able to a few years back: http://www.slilge.de/Binenwal/index_...60gut.jpg.html Stefan "Rick Johnson" schrieb im Newsbeitrag ster.com... This one reminds me of a hypnotist's spiral. NGC 488 is a tightly wound spiral (SA(r)b) located in Pisces about 90 million light years away by red shift measurement or 95 by Tully-Fisher analysis of its rotation rate. Being nearly face on that must be a tough measurement. It seems to be made up of mostly arm segments that go only about half way around then fuzz out. Still I seem to see but one continuous spiral if I follow the fuzz between segments. This is easier to do if the image is enlarged some. Unfortunately, seeing wasn't all that good so I had to limit my enlargement to only 33% or 0.75" per pixel. The field isn't covered by the Sloan Digital Sky Survey so few of the galaxies are cataloged. I've labeled all that are and include distance data for those few that had it. One galaxy cluster (GC) is annotated in the image. The line points to its center. NED shows it containing 17 galaxies but gives no size. It shows it as about 3 billion light years distant. Most members in my image appear to be east of the center. There is one "bright" asteroid of 19th magnitude and several of 20th. Due to the bad seeing and low transparency as well as their rapid motion they are far fainter than normal. I didn't label the 20th magnitude ones. The gap in the trail is due a meridian flip 20 minutes into the image. On cold winter nights like this one (outside temperature was below -30C) I slew at only 30% normal speed. That means a couple minute delay in the flip. The gap is longer than this as I apparently allowed 7 minutes for the flip instead of the 3 I usually program in. 14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME 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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NGC 488 You are getting sleepy
Actually you had quite a bit of detail. Just needed a run through the
high pass filter to pull it out. I've been told this one is really a time vortex. I did a bit more enhancing of the image, this time using Hoagland's hyperdimensional physics based processing tools. Great for pulling out detail normally seen only by averted imagination. Amazing what these tools can see. Rick On 12/11/2010 1:32 PM, Stefan Lilge wrote: Rick, this galaxy is similar to NGC 2841 as it also needs good detail to show any detail at all. You did much better than I was able to a few years back: http://www.slilge.de/Binenwal/index_...60gut.jpg.html Stefan -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
#4
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NGC 488 You are getting sleepy
Oops, forgot the "reprocessed" image.
Rick On 12/11/2010 4:03 PM, Rick Johnson wrote: Actually you had quite a bit of detail. Just needed a run through the high pass filter to pull it out. I've been told this one is really a time vortex. I did a bit more enhancing of the image, this time using Hoagland's hyperdimensional physics based processing tools. Great for pulling out detail normally seen only by averted imagination. Amazing what these tools can see. 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". |
#5
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NGC 488 You are getting sleepy
Well, I guess these vortexes can get really nasty if you get near them. I am
glad it is in NGC 488 and not in my bathroom. Stefan "Rick Johnson" schrieb im Newsbeitrag ter.com... Oops, forgot the "reprocessed" image. Rick On 12/11/2010 4:03 PM, Rick Johnson wrote: Actually you had quite a bit of detail. Just needed a run through the high pass filter to pull it out. I've been told this one is really a time vortex. I did a bit more enhancing of the image, this time using Hoagland's hyperdimensional physics based processing tools. Great for pulling out detail normally seen only by averted imagination. Amazing what these tools can see. 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". |
#6
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NGC 488 You are getting sleepy
I don't know if Dr. Who plays in Germany. If not the image won't make
much sense. Dr. Who is a campy English SiFi series that has run for decades (1963 I think, with a couple decade gap, to the present). It uses very cheap, cheesy special effects as in my "doctored" image. The Doctor (he has no name I'm aware of) is a time lord who travels through time and space in a "TARDIS" (Time And Relative Dimensions In Space). Which is multidimensional. On the outside it appears to be a 50's era English police call box just big enough for one policeman to fit into. But it is as big inside as as a sound stage allows. That's his TARDIS in the image or as best as I could do. Rick On 12/18/2010 4:22 PM, Stefan Lilge wrote: Well, I guess these vortexes can get really nasty if you get near them. I am glad it is in NGC 488 and not in my bathroom. Stefan "Rick schrieb im Newsbeitrag ter.com... Oops, forgot the "reprocessed" image. Rick On 12/11/2010 4:03 PM, Rick Johnson wrote: Actually you had quite a bit of detail. Just needed a run through the high pass filter to pull it out. I've been told this one is really a time vortex. I did a bit more enhancing of the image, this time using Hoagland's hyperdimensional physics based processing tools. Great for pulling out detail normally seen only by averted imagination. Amazing what these tools can see. 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". -- 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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