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ASTRO: ARP 89 -- KPG168
Arp 89, KPG 168, is classed by Arp almost the same as Arp 58 except for
one word. He has it under spiral galaxy with large, high surface brightness companion. And the companion is indeed, much larger than we've seen in arp 52 and 58. The main galaxy is also cataloged as NGC 2648 with the companion being CGCG 060-036. The KPG designation though is for both galaxies and stand for "Karachentsev Isolated Pairs of Galaxies Catalogue". These two sure are isolated. Nothing but faint distant galaxies with little available data are in my 1" per pixel image. The main galaxy is classed as a Sb spiral. Usually you'd see such a galaxy as having rather blue arms. In this case it is rather uniformly the reddish yellow color of most S0 galaxies. One paper even remarked on its completely flat color profile. Until I read that I was wondering about my processing, I just couldn't eke out any blue in the arms no matter what I did. The companion, classed as Sc however looks like a typical interacting spiral with nice vivid blue arms indicating new star formation is going on there. It also shows some tidal distortion with blue stars ripped from its arms. The main galaxy seems immune to the interaction with no new stars and no distortions. Odd. Both are about 107 million light years away so are likely really interacting. They are found in the constellation of Lynx. Arp's photo of this pair with the 200" telescope is at: http://nedwww.ipac.caltech.edu/level...big_arp89.jpeg 14" LX200R @ f/10, L=4x10' RGB=2x10' all binned 2x2, 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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ASTRO: ARP 89 -- KPG168
I like the color contrast between the two, nice imaging!
Rick Johnson wrote: Arp 89, KPG 168, is classed by Arp almost the same as Arp 58 except for one word. He has it under spiral galaxy with large, high surface brightness companion. And the companion is indeed, much larger than we've seen in arp 52 and 58. The main galaxy is also cataloged as NGC 2648 with the companion being CGCG 060-036. The KPG designation though is for both galaxies and stand for "Karachentsev Isolated Pairs of Galaxies Catalogue". These two sure are isolated. Nothing but faint distant galaxies with little available data are in my 1" per pixel image. The main galaxy is classed as a Sb spiral. Usually you'd see such a galaxy as having rather blue arms. In this case it is rather uniformly the reddish yellow color of most S0 galaxies. One paper even remarked on its completely flat color profile. Until I read that I was wondering about my processing, I just couldn't eke out any blue in the arms no matter what I did. The companion, classed as Sc however looks like a typical interacting spiral with nice vivid blue arms indicating new star formation is going on there. It also shows some tidal distortion with blue stars ripped from its arms. The main galaxy seems immune to the interaction with no new stars and no distortions. Odd. Both are about 107 million light years away so are likely really interacting. They are found in the constellation of Lynx. Arp's photo of this pair with the 200" telescope is at: http://nedwww.ipac.caltech.edu/level...big_arp89.jpeg 14" LX200R @ f/10, L=4x10' RGB=2x10' all binned 2x2, STL-11000XM, Paramount ME Rick ------------------------------------------------------------------------ -- Adriano 34°14'11.7"N |
#3
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ASTRO: ARP 89 -- KPG168
Rick, that's a nice pair, good detail in both of them.
Stefan "Rick Johnson" schrieb im Newsbeitrag ster.com... Arp 89, KPG 168, is classed by Arp almost the same as Arp 58 except for one word. He has it under spiral galaxy with large, high surface brightness companion. And the companion is indeed, much larger than we've seen in arp 52 and 58. The main galaxy is also cataloged as NGC 2648 with the companion being CGCG 060-036. The KPG designation though is for both galaxies and stand for "Karachentsev Isolated Pairs of Galaxies Catalogue". These two sure are isolated. Nothing but faint distant galaxies with little available data are in my 1" per pixel image. The main galaxy is classed as a Sb spiral. Usually you'd see such a galaxy as having rather blue arms. In this case it is rather uniformly the reddish yellow color of most S0 galaxies. One paper even remarked on its completely flat color profile. Until I read that I was wondering about my processing, I just couldn't eke out any blue in the arms no matter what I did. The companion, classed as Sc however looks like a typical interacting spiral with nice vivid blue arms indicating new star formation is going on there. It also shows some tidal distortion with blue stars ripped from its arms. The main galaxy seems immune to the interaction with no new stars and no distortions. Odd. Both are about 107 million light years away so are likely really interacting. They are found in the constellation of Lynx. Arp's photo of this pair with the 200" telescope is at: http://nedwww.ipac.caltech.edu/level...big_arp89.jpeg 14" LX200R @ f/10, L=4x10' RGB=2x10' all binned 2x2, 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". |
#4
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ASTRO: ARP 89 -- KPG168
Rick, that's a nice pair, good detail in both of them.
Stefan "Rick Johnson" schrieb im Newsbeitrag ster.com... Arp 89, KPG 168, is classed by Arp almost the same as Arp 58 except for one word. He has it under spiral galaxy with large, high surface brightness companion. And the companion is indeed, much larger than we've seen in arp 52 and 58. The main galaxy is also cataloged as NGC 2648 with the companion being CGCG 060-036. The KPG designation though is for both galaxies and stand for "Karachentsev Isolated Pairs of Galaxies Catalogue". These two sure are isolated. Nothing but faint distant galaxies with little available data are in my 1" per pixel image. The main galaxy is classed as a Sb spiral. Usually you'd see such a galaxy as having rather blue arms. In this case it is rather uniformly the reddish yellow color of most S0 galaxies. One paper even remarked on its completely flat color profile. Until I read that I was wondering about my processing, I just couldn't eke out any blue in the arms no matter what I did. The companion, classed as Sc however looks like a typical interacting spiral with nice vivid blue arms indicating new star formation is going on there. It also shows some tidal distortion with blue stars ripped from its arms. The main galaxy seems immune to the interaction with no new stars and no distortions. Odd. Both are about 107 million light years away so are likely really interacting. They are found in the constellation of Lynx. Arp's photo of this pair with the 200" telescope is at: http://nedwww.ipac.caltech.edu/level...big_arp89.jpeg 14" LX200R @ f/10, L=4x10' RGB=2x10' all binned 2x2, 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". |
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