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ASTRO: NGC 3718, NGC 3729 & Hickson 56: galaxies in Ursa Major by Danilo Pivato
Hi all, the region around NGC3718 is very interesting for friends of faint galaxies. BRC250 with ccd ST-10XME 48 x 300 seconds from the sky of...
May 3rd 11 09:23 PM
by Stefan Lilge Go to last post
1 1,002
4 Attachment(s) ASTRO: Arp 297 NGC 5752, 53, 54, 55 and debris by Rick Johnson[_2_]
Arp 297 falls under Arp's category of galaxy groups, long filaments. It is located in Bootes. It's distance is a problem I'll get to. It is made up of...
April 29th 11 12:23 PM
by George[_6_] Go to last post
2 1,612
1 Attachment(s) ASTRO: NGC5272 by George[_6_]
Image: 20x1 minutes for a total of 20 minutes at ISO 800 Stacked in DeepSkyStacker, Dark Subtracted Processed in Maxim DL 5 and Adobe Photoshop CS3...
April 29th 11 12:20 PM
by George[_6_] Go to last post
4 1,454
1 Attachment(s) ASTRO: NGC 2681 by Stefan Lilge
In February I imaged NGC 2681, a rather strange galaxy in UMa. It features a well defined, almost circular spiral arm, surrounded by a halo that somewhat...
April 28th 11 12:09 AM
by Rick Johnson[_2_] Go to last post
1 1,476
3 Attachment(s) ASTRO: Arp 22 by Rick Johnson[_2_]
Arp 22 is located in Corvus at a distance of 60 to 93 million light-years. It seems every place I look I get a different distance. Back to that in a bit. ...
April 27th 11 11:55 PM
by Rick Johnson[_2_] Go to last post
2 1,293
3 Attachment(s) ASTRO: Arp 5 Weird dwarf galaxies and stars by Rick Johnson[_2_]
Arp 5/NGC 3664 is in southwestern Leo, 80 light-years distant. Arp put it in his category for low surface brightness spirals. Arp had no comment on this...
April 27th 11 08:19 PM
by Stefan Lilge Go to last post
1 2,878
4 Attachment(s) ASTRO: Arp 161 by Rick Johnson[_2_]
Arp 161/UGC 6665 is thought to be a merger of two spiral galaxies located in western Virgo almost on he Leo border. It is about 270 million light-years...
April 23rd 11 03:25 AM
by Rick Johnson[_2_] Go to last post
1 1,431
3 Attachment(s) ASTRO: Arp 83/NGC 3799-3800 by Rick Johnson[_2_]
Arp 83/NGC 3799-3800 is found near Denebola in the tail end of Leo, about 170 million light-years distant. Arp put it in his class of spiral galaxies with...
April 20th 11 07:30 PM
by Rick Johnson[_2_] Go to last post
0 1,015
6 Attachment(s) ASTRO: Arp 40 and more by Rick Johnson[_2_]
Arp 40/IC 4271 is another from Arp's category for spiral galaxies with low surface brightness companions on their arms. It is located in Canes Venatici about...
April 17th 11 10:44 PM
by Rick Johnson[_2_] Go to last post
1 1,347
4 Attachment(s) ASTRO: Arp 203 by Rick Johnson[_2_]
Arp 203/NGC 3712 is located about 90 million light-years away in the constellation of Ursa Major just across the border from Leo. In fact the south edge of...
April 15th 11 07:54 PM
by Rick Johnson[_2_] Go to last post
0 1,080
1 Attachment(s) ASTRO: Aurora April 12 by jim wilson
Looking north over northwest Calgary. A 90 degree panorama. jim
April 14th 11 07:53 AM
by Rick Johnson[_2_] Go to last post
3 1,020
4 Attachment(s) ASTRO: Arp 57 by Rick Johnson[_2_]
Arp 57 is in the southeast corner of Coma Berenices just a few minutes of arc across the border from Virgo. The bottom of the image is in Virgo in fact. It...
April 13th 11 07:53 PM
by Rick Johnson[_2_] Go to last post
0 916
4 Attachment(s) ASTRO: Crossed Swords -- Arp 193 by Rick Johnson[_2_]
Arp 193/IC 883: Located in Canes Venatici about 330 million light-years away it is quite obviously the result of the merger of two disk galaxies. The two...
April 12th 11 03:34 AM
by Skywise Go to last post
4 1,426
4 Attachment(s) ASTRO: Arp 87 -- It's a wrap by Rick Johnson[_2_]
Arp 87 is a pair of galaxies in northeast Leo about 335 to 340 million light years away. Arp put it in his category of spirals with large high surface...
April 11th 11 06:17 PM
by Rick Johnson[_2_] Go to last post
0 859
1 Attachment(s) ASTRO: Messier 13 by George[_6_]
Messier 13 Image: 19x1 minutes for a total of 19 minutes at ISO 400 Stacked in DeepSkyStacker, Dark Subtracted Processed in Maxim DL 5 and Adobe Photoshop CS3...
April 9th 11 08:31 AM
by George[_6_] Go to last post
0 780
1 Attachment(s) ASTRO: M63 (old luminance, new colour) by Stefan Lilge
I had bad colour data for a 2007 image of M63, so I gathered some now RGB frames on March 22. There was bright moonlight adding to the city lights, but...
April 5th 11 10:58 PM
by Rick Johnson[_2_] Go to last post
2 1,770
5 Attachment(s) ASTRO: Arp 198 -- Arp's Mistake by Rick Johnson[_2_]
Arp 198 is one Arp misunderstood. He classed it under "Galaxies: Material ejected from Nuclei." His note indicates he saw this one as a spiral with a huge...
April 5th 11 10:55 PM
by Rick Johnson[_2_] Go to last post
3 1,603
1 Attachment(s) ASTRO: M3 by Stefan Lilge
Last full moon the sky was so bright that I had to image something even brighter. Seeing was quite good, so I used a scale of 0,55 arcseconds/pixel. Taken...
April 5th 11 10:51 PM
by Rick Johnson[_2_] Go to last post
1 801
5 Attachment(s) ASTRO: Arp 42 by Rick Johnson[_2_]
Arp 42/NGC 5829 and IC 4526 falls under Arp's category of spiral galaxies with a low surface brightness companion on an arm. Though in this case I can't see...
April 5th 11 07:39 PM
by Stefan Lilge Go to last post
1 1,004
4 Attachment(s) ASTRO: Arp 334 by Rick Johnson[_2_]
Arp 334 is located in the constellation of Canes Venatici at about 340 million light-years. Arp put it in his Miscellaneous class. His note gives no...
April 5th 11 07:38 PM
by Stefan Lilge Go to last post
1 1,142
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