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ASTRO: The Violin Clef Galaxy -- not in the catalogs
The Violin Clef galaxy has no catalog name that I could find. A radio
source is located nearby however, NVSS J000415+032242. The coordinates for the galaxy itself are 00h 04m 15.4s +03d 23' 02" based on my plate solve. It was found by a participant at Galaxy Zoo last year. His announcement post is at http://www.galaxyzooforum.org/index.php?topic=279443.0 along with the Sloan image he was looking at. Since then some work as been done on this system of 4 galaxies. All 4 have the same redshift z=0.0956 +/- 0.002 which puts them about 1 and a quarter billion light-years away light travel time. Somehow their interaction has drawn out this huge double tail on the one galaxy without seeming to harm the others. http://www.facebook.com/notes/galaxy...00628689947360 This link says all four galaxies are red as is the tidal tail. I wasn't able to get much color data for the long tails but what little I got is very slightly red. Certainly all four galaxies are. The spectra show little evidence of star formation triggered by the interaction. This is puzzling. Could this be due to most of the gas and dust having been ejected from the system by another interaction in the distant past? The system is in a region of Pisces for which there's little data. While Sloan has imaged this area the data isn't as yet in NED. It lists only a few galaxies in the area, not the Violin Clef of course. I wasn't going to make an annotated image but there were three asteroids in the image, one of which moved less than one second of arc during the time of my luminance exposures so appears exactly the same as a star in the image. Just that when you examine the field using Sloan or the DSS there's no star at that position. The violin clef is the shape of the two acoustic holes in a violin. They are mirror images of each other so this is the violin's left one. It makes a good integral sign if you look only at the center galaxy but when all four are considered the violin clef shape makes more sense. This is my first November 2011 galaxy so I'm now only 12 months behind in my processing -- yet again. 14" LX200R @ f/10, L=5x10' RGB=2x10' STL-11000XM, Paramount ME Rick -- Prefix is correct. Domain is arvig dot net |
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ASTRO: The Violin Clef Galaxy -- not in the catalogs
Wow, that's a distant group. Very nice detail.
Stefan "Rick Johnson" schrieb im Newsbeitrag .com... The Violin Clef galaxy has no catalog name that I could find. A radio source is located nearby however, NVSS J000415+032242. The coordinates for the galaxy itself are 00h 04m 15.4s +03d 23' 02" based on my plate solve. It was found by a participant at Galaxy Zoo last year. His announcement post is at http://www.galaxyzooforum.org/index.php?topic=279443.0 along with the Sloan image he was looking at. Since then some work as been done on this system of 4 galaxies. All 4 have the same redshift z=0.0956 +/- 0.002 which puts them about 1 and a quarter billion light-years away light travel time. Somehow their interaction has drawn out this huge double tail on the one galaxy without seeming to harm the others. http://www.facebook.com/notes/galaxy...00628689947360 This link says all four galaxies are red as is the tidal tail. I wasn't able to get much color data for the long tails but what little I got is very slightly red. Certainly all four galaxies are. The spectra show little evidence of star formation triggered by the interaction. This is puzzling. Could this be due to most of the gas and dust having been ejected from the system by another interaction in the distant past? The system is in a region of Pisces for which there's little data. While Sloan has imaged this area the data isn't as yet in NED. It lists only a few galaxies in the area, not the Violin Clef of course. I wasn't going to make an annotated image but there were three asteroids in the image, one of which moved less than one second of arc during the time of my luminance exposures so appears exactly the same as a star in the image. Just that when you examine the field using Sloan or the DSS there's no star at that position. The violin clef is the shape of the two acoustic holes in a violin. They are mirror images of each other so this is the violin's left one. It makes a good integral sign if you look only at the center galaxy but when all four are considered the violin clef shape makes more sense. This is my first November 2011 galaxy so I'm now only 12 months behind in my processing -- yet again. 14" LX200R @ f/10, L=5x10' RGB=2x10' STL-11000XM, Paramount ME Rick -- Prefix is correct. Domain is arvig dot net |
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