Sunday, November 16, 2008

The faint background stars around Aldebaran

During the camera tests of last week, I made a shot of Aldebaran in the constellation of Taurus. The faintest stars in the background are about 14,9 magnitudes. Note this was a 0,6 seconds exposure using an ST-7XME camera through a 10cm telescope!

Aplha Tauri is going to die in some million years. Its spectral type is K5III. It is 65 light years away, this is about 3 times the distance of Wega. It's magnitude 0.87 shows the high luminosity of this red giant.

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