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Virgo cluster - first time

Started by kulginov, 02/20/2005 09:30AM
Posted 02/20/2005 09:30AM Opening Post
Last Wednesday I looked in a telescope at the Virgo-Coma galaxy cluster for the first time. It was a religious-like experience.

I was away at a skiing trip; according to the weather forecast, the only clear night would fall on Tuesday when the Moon sets at 2 a.m. The evening was clear indeed, so I set my alarm watch on 2.15. The cabin where we stayed is located by a beautiful lake, no lights, no cities around.

I was out at 2.30; it was very cold, -20C (well below zero Farenheit; ice on the lake made loud rumbles), but transparency was good; whlie I could easily see my gear, limiting magnitude was at least 6.15 in Coma (much darker near zenith).

I was using a copy of a close-up chart from Uranometria, navigation was easy. I went through all the Messier galaxies in Virgo and Coma, and there was a lot of small NGC galaxies sprinkled around them. M84/86 were bright, slightly different in size and had concentrated cores. I could barely see 4387/88 that form a nose and a mouth to M84/86. 4435/38 next to them stared at me from the darkness some 60 Mly away (I finally understood why they are called The Eyes). Then I followed Markarian's chain: 4458/61 were small and pretty obvious; I saw half a dozen other galaxies on the way to M88 and M91, but I don't remember the details because it was far too cold to even think of making notes. The elliptic glow of M88 was placed against an asterism that looked like a mirror image of mini-Aries. After that I roamed at the perifery of my chart (M98, 99, 100, 89, 90, 58). M87 was very bright, if I may say so about a distant galaxy in 80mm; I could see its neighbours 4476/78. Then I proceeded to Coma with the help of another chart from U2K where I found M85, and then hopped from 17 Com via small galaxies 4494 and 4562 to the long, not-so-faint and elegant 4565.

After that transparency began to deteriorate; halos appeared around bright stars. Using Karkoschka, I found M60, 59, 85, 98 and, with some struggle, M49 and 61. My hands could hardly move, and I was very happy to get inside; it was 3.35 a.m.

Even though I didn't see much detail in any of the galaxies, it was an awe-inspiring night. When you've learned how our Milky Way is laid out, on a dark night you can see the structure of our own galaxy with naked eye; but here - I could see the structure of the Universe!

Dmitri
Posted 02/20/2005 01:52PM #1
Sounds like a wonderful night! I envy your clear skies, nothing but rain/clouds here for far too long. grin
Posted 02/20/2005 05:03PM #2
Great report, Dmitri. I hope to be doing similar observations soon (if it ever clears up again. )

Congratulations on a great night!

Elliott
Orion XT8
Orion Vista 10x50
Live Free Or Die
Posted 02/21/2005 03:42AM #3
Dmitri
Your perseverance in the cold was well rewarded. Your post reminded me of my first look at the more distant Coma cluster of galaxies centered around NGC 4889, NGC 4874, and NGC 4886. With a 31 Nagler in a 40 inch Dob it is possible to count sixty galaxies in a single eyepiece field, much like the image on the Astronomy Picture of the day archive for Feb 3, 2002. I know what you mean about such nights constituting near religious experiences, and providing a glimpse of the structure of the universe.