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Astro: Arp 35
Arp 35 is considered a pair of interacting galaxies even though they are
widely separated. The two galaxies are LEDA 001434 in the center and LEDA 001431 well below it. They are in the constellation of Pisces. Both are about 210 million light years from us. The later seems mostly unchanged by the encounter but 1434 certainly has been torn up by the near collision. Arp has a class for integral sign galaxies, none of which is THE integral sign galaxy oddly enough. To me 001434 should be the "infinity sign galaxy". Arp however has it classed in the integral sign class. He's including the long arms while my infinity sign idea ignores them. Still I think it a better infinity sign than integral sign. For the math challenged the integral sign looks like a ~ symbol while the infinity sign is more an 8 sitting on its side. Like Arp 24 the companion isn't involved in his classification of the galaxy and isn't mentioned that I find. Still most catalogs consider both to be part of Arp 35. Arp's photo of this galaxy system is at: http://nedwww.ipac.caltech.edu/level...big_arp35.jpeg When I imaged it I also picked up three asteroids. Due to the timing I caught them just at the end of their retrograde motion when they about to return to direct or prograde motion. This means they were virtually motionless in the sky. In fact one was so nearly motionless it is very difficult to tell from a star. In preparing an annotated version of the image I noted there were some quasars in the image as well. Since they carry no ID other than catalog names that define their position either using galactic or sidereal coordinates I'm not going to list them. On the annotated image their distance in billions of light years is noted. In looking these up I noted that the image also contained the most distant galaxy I've ever imaged that I've been able to find with a distance measurement. It too is labeled, with a G in front of the distance to separate it from the quasars as it is farther than many quasars I've imaged. That has to be one huge galaxy to be visible at over 4 billion light years. All labels are to the right of the object unless there's a pointer to the object. Note that distant quasars are usually blue while distant galaxies are reddish in color. Color fringing on the asteroids is due to their motion. Color frames don't align on moving objects. 14" LX200R @ f/10, L=4x10' RGB=2x10', 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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Astro: Arp 35
Neat image Rick, lots of small galaxies floating around.
Stefan "Rick Johnson" schrieb im Newsbeitrag ster.com... Arp 35 is considered a pair of interacting galaxies even though they are widely separated. The two galaxies are LEDA 001434 in the center and LEDA 001431 well below it. They are in the constellation of Pisces. Both are about 210 million light years from us. The later seems mostly unchanged by the encounter but 1434 certainly has been torn up by the near collision. Arp has a class for integral sign galaxies, none of which is THE integral sign galaxy oddly enough. To me 001434 should be the "infinity sign galaxy". Arp however has it classed in the integral sign class. He's including the long arms while my infinity sign idea ignores them. Still I think it a better infinity sign than integral sign. For the math challenged the integral sign looks like a ~ symbol while the infinity sign is more an 8 sitting on its side. Like Arp 24 the companion isn't involved in his classification of the galaxy and isn't mentioned that I find. Still most catalogs consider both to be part of Arp 35. Arp's photo of this galaxy system is at: http://nedwww.ipac.caltech.edu/level...big_arp35.jpeg When I imaged it I also picked up three asteroids. Due to the timing I caught them just at the end of their retrograde motion when they about to return to direct or prograde motion. This means they were virtually motionless in the sky. In fact one was so nearly motionless it is very difficult to tell from a star. In preparing an annotated version of the image I noted there were some quasars in the image as well. Since they carry no ID other than catalog names that define their position either using galactic or sidereal coordinates I'm not going to list them. On the annotated image their distance in billions of light years is noted. In looking these up I noted that the image also contained the most distant galaxy I've ever imaged that I've been able to find with a distance measurement. It too is labeled, with a G in front of the distance to separate it from the quasars as it is farther than many quasars I've imaged. That has to be one huge galaxy to be visible at over 4 billion light years. All labels are to the right of the object unless there's a pointer to the object. Note that distant quasars are usually blue while distant galaxies are reddish in color. Color fringing on the asteroids is due to their motion. Color frames don't align on moving objects. 14" LX200R @ f/10, L=4x10' RGB=2x10', 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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