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Uploaded 13-Sep-07
Taken 11-Sep-07
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Original file size239 KB
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Date modified11-Sep-07 22:19
Markarian 205

Markarian 205

This object is in the RASC Observers Handbook in the Deep Sky Callenge objects. Markarian 205 is a Quasar, visible as a small faint 14.5 magnitude star at the edge of the 12th mag galaxy NGC 4319. I started looking for this last month when I was at the Mt Kobau Star party. I thought that I had found it and showed it to a friend on the night of Sepember 9th when we were observing together at Pearson College. I hadn't looked at an image before the search so I wouldn't be influenced. After going home Blaire did an internet search. He emailed to inform me that we were looking at the wrong galaxy. When you look at the sketch you will see a small star at the edge of the galaxy NGC 4291. You see there are two galaxies in the high power FOV (317X , 5mm T6 Nagler). I guess technically there are three with the quasar. Well actually at a slightly lower power there is another galaxy NGC 4386 about 20' to the NE. Anyway, I went back out on the night of the 10th to see what would show on the other galaxy. It took a bit, but with my 12.5" dob and steady averted vision I was able to detect the quasar on the edge of this rather interesting spiral. The glow of the galaxy hides it a bit. The two galaxies have about the same magnitude but NGC 4319 has a much lower surface brightness. 4319 wasn't visible with my 6" dob while NGC 4291 was rather easy to see.If you Google Markarian 205, you will find all sorts of interesting stuff regarding comparisons of the redshifts of the quasar and the galaxy. Markarian 205 reads to be about 1 billlion ly away while NGV 4319 is only about 80 million ly away. The interesting thing is that in high res images there appears to be a bridge between them. Many papers have been written about it.The object is located in Draco at RA 12 21.6 Dec +75 18 if you are wanting to give this object a try.