The billions of stars that make this wonderful smooth shape, which appears nearly edge on from our Galaxy, lie 29 million light years away, in the south of the constellation of Virgo. This vast stellar city is nicknamed the Sombrero galaxy for obvious reasons. Officially known as M104, you can see the bright nucleus, and sharp, symmetrical dust lane around the edge. There are also 1 or 2 background galaxies visible. M104 has been imaged in infrared light that penetrates the galaxy to show the dust lane going all the way around. It's an incredibly aesthetically pleasing object that 'floats' in the sky like saturn with its ring. It lies quite a way outside (south) of the main Virgo galaxy cluster, but is quite bright due to that nucleus. It is a little smaller than you may expect, and the dust lane can be seen with a moderate telescope from the UK, low in the southern sky in spring. This picture was composed from just 7 x 1-minute exposures on the 20-inch BAS scope at f/3 (along with some daylight flat fields that didn't work). It just looks beautiful to me.
Thursday, 28 April 2011
Sombrero!
The billions of stars that make this wonderful smooth shape, which appears nearly edge on from our Galaxy, lie 29 million light years away, in the south of the constellation of Virgo. This vast stellar city is nicknamed the Sombrero galaxy for obvious reasons. Officially known as M104, you can see the bright nucleus, and sharp, symmetrical dust lane around the edge. There are also 1 or 2 background galaxies visible. M104 has been imaged in infrared light that penetrates the galaxy to show the dust lane going all the way around. It's an incredibly aesthetically pleasing object that 'floats' in the sky like saturn with its ring. It lies quite a way outside (south) of the main Virgo galaxy cluster, but is quite bright due to that nucleus. It is a little smaller than you may expect, and the dust lane can be seen with a moderate telescope from the UK, low in the southern sky in spring. This picture was composed from just 7 x 1-minute exposures on the 20-inch BAS scope at f/3 (along with some daylight flat fields that didn't work). It just looks beautiful to me.
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