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ASTRO: Palomar 5 From Colorado Springs
I did not know about the Pal globulars... I take it there are but a few...
They are not easy to record and were first thought to be dwarf ellipticals. I suppose the first plates did not resolve the stars well.... This image is only 60 min. and it is noisy, but the cluster stars show behind all the foreground stars. 12.5" RCOS RC at 114" ST8E/AO7 60 min. in 2 sub-exposures -- Regards, Doug W. www.photonsfate.com |
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ASTRO: Palomar 5 From Colorado Springs
nice work on this and ngc6691
Doug W. wrote: I did not know about the Pal globulars... I take it there are but a few... They are not easy to record and were first thought to be dwarf ellipticals. I suppose the first plates did not resolve the stars well.... This image is only 60 min. and it is noisy, but the cluster stars show behind all the foreground stars. 12.5" RCOS RC at 114" ST8E/AO7 60 min. in 2 sub-exposures -- John N. Gretchen III N5JNG NCS304 http://www.tisd.net/~jng3 |
#3
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ASTRO: Palomar 5 From Colorado Springs
Doug W. wrote: I did not know about the Pal globulars... I take it there are but a few... They are not easy to record and were first thought to be dwarf ellipticals. I suppose the first plates did not resolve the stars well.... This image is only 60 min. and it is noisy, but the cluster stars show behind all the foreground stars. 12.5" RCOS RC at 114" ST8E/AO7 60 min. in 2 sub-exposures You finally got some clear skies I see. Pal 5 is one of the more difficult Palomar globulars. You did well with it. It is very spread out. I've had Pal 10 and 11 on my list now for some time but so far haven't found time to try them as they need lots of exposure time. Weather this year has now clouded out 10 straight new moons and most of the week around it. After 50 days of clouds the sun is out today but so is the moon. Forecast is overcast by nightfall anyway. I lost access to Usenet a week ago when Arvig stopped carrying it. For a bit I was able to send text through Space Banter but they blocked all my attempts to post images due to some software bug apparently in their posting system. All uploads got a failed message anyway. After lots of other problems I've finally found a way back on here. 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". |
#4
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ASTRO: Palomar 5 From Colorado Springs
Good shooting, another interesting object. I'd like to know if this is a
sparse globular that has lost most of it's stars to tidal forces or if most of the stars are just too faint to be seen. Still it is quite obvious that this is not an open cluster. I think Martin Germano posted one or two of the Palomar clusters, but they sure are "exotic" targets. Stefan "Doug W." schrieb im Newsbeitrag . .. I did not know about the Pal globulars... I take it there are but a few... They are not easy to record and were first thought to be dwarf ellipticals. I suppose the first plates did not resolve the stars well.... This image is only 60 min. and it is noisy, but the cluster stars show behind all the foreground stars. 12.5" RCOS RC at 114" ST8E/AO7 60 min. in 2 sub-exposures -- Regards, Doug W. www.photonsfate.com |
#5
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ASTRO: Palomar 5 From Colorado Springs
Hi Stefan... in fact, I came across martin's photo as I searched about this
cluster... it was a good image from his film days... I believe the cluster is old and sparse these days... I take it that there are 4 red giants in the cluster.... and that was interesting to some scientist... but I'm not sure why... -- Regards, Doug W. www.photonsfate.com "Stefan Lilge" wrote in message ... Good shooting, another interesting object. I'd like to know if this is a sparse globular that has lost most of it's stars to tidal forces or if most of the stars are just too faint to be seen. Still it is quite obvious that this is not an open cluster. I think Martin Germano posted one or two of the Palomar clusters, but they sure are "exotic" targets. Stefan "Doug W." schrieb im Newsbeitrag . .. I did not know about the Pal globulars... I take it there are but a few... They are not easy to record and were first thought to be dwarf ellipticals. I suppose the first plates did not resolve the stars well.... This image is only 60 min. and it is noisy, but the cluster stars show behind all the foreground stars. 12.5" RCOS RC at 114" ST8E/AO7 60 min. in 2 sub-exposures -- Regards, Doug W. www.photonsfate.com |
#6
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ASTRO: Palomar 5 From Colorado Springs
Hi Rick... yes clear but not to steady... still, better than it has been!
Thanks. -- Regards, Doug W. www.photonsfate.com "Rick Johnson" wrote in message om... Doug W. wrote: I did not know about the Pal globulars... I take it there are but a few... They are not easy to record and were first thought to be dwarf ellipticals. I suppose the first plates did not resolve the stars well.... This image is only 60 min. and it is noisy, but the cluster stars show behind all the foreground stars. 12.5" RCOS RC at 114" ST8E/AO7 60 min. in 2 sub-exposures You finally got some clear skies I see. Pal 5 is one of the more difficult Palomar globulars. You did well with it. It is very spread out. I've had Pal 10 and 11 on my list now for some time but so far haven't found time to try them as they need lots of exposure time. Weather this year has now clouded out 10 straight new moons and most of the week around it. After 50 days of clouds the sun is out today but so is the moon. Forecast is overcast by nightfall anyway. I lost access to Usenet a week ago when Arvig stopped carrying it. For a bit I was able to send text through Space Banter but they blocked all my attempts to post images due to some software bug apparently in their posting system. All uploads got a failed message anyway. After lots of other problems I've finally found a way back on here. 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". |
#7
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ASTRO: Palomar 5 From Colorado Springs
Hi ya John... thanks for comments... hope all is well down your way... is
it HOT? -- Regards, Doug W. www.photonsfate.com "John N. Gretchen III" wrote in message m... nice work on this and ngc6691 Doug W. wrote: I did not know about the Pal globulars... I take it there are but a few... They are not easy to record and were first thought to be dwarf ellipticals. I suppose the first plates did not resolve the stars well.... This image is only 60 min. and it is noisy, but the cluster stars show behind all the foreground stars. 12.5" RCOS RC at 114" ST8E/AO7 60 min. in 2 sub-exposures -- John N. Gretchen III N5JNG NCS304 http://www.tisd.net/~jng3 |
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