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ASTRO: NGC 1560 an obscured galaxy in weak IFN
NGC 1560 is a spiral galaxy above my 70 north limit due to my Polaris
Tree. But only by a degree so it's only in the very edges of the tree for much of its circle around the pole. By taking 5 hours of data with it east of the pole I was able to find 3 L images, 2 red, 2, green and 3 blue that weren't too bothered by pine needles. They still made for some interesting halos around bright stars and color prism effects to those halos. I've removed these the best I can. The picture looks noisy but I think it real and due to the IFN. It is located in a part of the sky known to have IFN but I didn't expect only 30 minutes of data to bring it out like this. It just barely shows in the DSS plates and then only if you really stretch the heck out of them but the brightest parts match my image so not all the fuzz is due to pine needles. NGC 1560 is a Maffei Galaxy, that is it is a member of this heavily obscured, but very nearby, group of galaxies that includes Maffei 1 and 2 as well as IC 342 and Arp 210 as well as some other dwarf galaxies like UGCA 86, 92, 105 and UGC 2773, Cam A, B, and D and a few others some found by radio telescopes like Dwingeloo 1 and 2. Most are below my 70 degree limit so are on my to-do list but I don't know when I'll get to those not yet imaged. NGC 1560 is classed as an SA(s)d spiral. It is located in the constellation of Camelopardalis (a giraffe not a camel) I have seen several distance estimates ranging from 7.5 to 16 million light-years. This close redshift is worthless. In fact it has a blue shift meaning it is approaching us. Most sources seem to average out at about 10 million light years. The problem is how to take into account the dimming due to looking through all the dust and gas of our galaxy. Different estimates of this dimming give different distances. 14" LX200R @ f/10, L=3x10', RG=2x10'x3, B=3x10'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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ASTRO: NGC 1560 an obscured galaxy in weak IFN
I settled on a distance of 16Mly - can't remember the process in
arriving at that number after wrestling with the various estimates. Anyhow - nice image. On Tue, 06 Jul 2010 16:32:08 -0500, Rick Johnson wrote: NGC 1560 is a spiral galaxy above my 70 north limit due to my Polaris Tree. But only by a degree so it's only in the very edges of the tree for much of its circle around the pole. By taking 5 hours of data with it east of the pole I was able to find 3 L images, 2 red, 2, green and 3 blue that weren't too bothered by pine needles. They still made for some interesting halos around bright stars and color prism effects to those halos. I've removed these the best I can. The picture looks noisy but I think it real and due to the IFN. It is located in a part of the sky known to have IFN but I didn't expect only 30 minutes of data to bring it out like this. It just barely shows in the DSS plates and then only if you really stretch the heck out of them but the brightest parts match my image so not all the fuzz is due to pine needles. NGC 1560 is a Maffei Galaxy, that is it is a member of this heavily obscured, but very nearby, group of galaxies that includes Maffei 1 and 2 as well as IC 342 and Arp 210 as well as some other dwarf galaxies like UGCA 86, 92, 105 and UGC 2773, Cam A, B, and D and a few others some found by radio telescopes like Dwingeloo 1 and 2. Most are below my 70 degree limit so are on my to-do list but I don't know when I'll get to those not yet imaged. NGC 1560 is classed as an SA(s)d spiral. It is located in the constellation of Camelopardalis (a giraffe not a camel) I have seen several distance estimates ranging from 7.5 to 16 million light-years. This close redshift is worthless. In fact it has a blue shift meaning it is approaching us. Most sources seem to average out at about 10 million light years. The problem is how to take into account the dimming due to looking through all the dust and gas of our galaxy. Different estimates of this dimming give different distances. 14" LX200R @ f/10, L=3x10', RG=2x10'x3, B=3x10'x3, STL-11000XM, Paramount ME Rick |
#3
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ASTRO: NGC 1560 an obscured galaxy in weak IFN
Very good image Rick.
Amazing that this is supposed to be a spiral, I see no sign of spiral structure or the typical "disk" of edge-on spirals. It probably doesn't have a supermassive black hole in it's center. Stefan "Rick Johnson" schrieb im Newsbeitrag . com... NGC 1560 is a spiral galaxy above my 70 north limit due to my Polaris Tree. But only by a degree so it's only in the very edges of the tree for much of its circle around the pole. By taking 5 hours of data with it east of the pole I was able to find 3 L images, 2 red, 2, green and 3 blue that weren't too bothered by pine needles. They still made for some interesting halos around bright stars and color prism effects to those halos. I've removed these the best I can. The picture looks noisy but I think it real and due to the IFN. It is located in a part of the sky known to have IFN but I didn't expect only 30 minutes of data to bring it out like this. It just barely shows in the DSS plates and then only if you really stretch the heck out of them but the brightest parts match my image so not all the fuzz is due to pine needles. NGC 1560 is a Maffei Galaxy, that is it is a member of this heavily obscured, but very nearby, group of galaxies that includes Maffei 1 and 2 as well as IC 342 and Arp 210 as well as some other dwarf galaxies like UGCA 86, 92, 105 and UGC 2773, Cam A, B, and D and a few others some found by radio telescopes like Dwingeloo 1 and 2. Most are below my 70 degree limit so are on my to-do list but I don't know when I'll get to those not yet imaged. NGC 1560 is classed as an SA(s)d spiral. It is located in the constellation of Camelopardalis (a giraffe not a camel) I have seen several distance estimates ranging from 7.5 to 16 million light-years. This close redshift is worthless. In fact it has a blue shift meaning it is approaching us. Most sources seem to average out at about 10 million light years. The problem is how to take into account the dimming due to looking through all the dust and gas of our galaxy. Different estimates of this dimming give different distances. 14" LX200R @ f/10, L=3x10', RG=2x10'x3, B=3x10'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". |
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