Posts tagged 'Binary'

Observing Report 26th-27th June 2011 Part 1 (A double and a cluster)

Posted by on June 29th 2011 in Astrostuff, Observing Reports, Pics

A warm clear night after one of the hottest day of the year so far. Clarity was good although the seeing was only fair at best. Still not much full darkness but managed to get two targets before it got too light...

Albireo, the fifth brightest star in the constellation Cygnus.
Albireo appears to the naked eye to be a single star but through a telescope even low magnifications resolve it into a double star.
The brighter yellow star makes a striking colour contrast with its fainter blue companion.
Subs: 10 light @ 150s, darks and bias frames, ISO400.
1000D on the 6" R-C, guided with PHD.

M39 (aka NGC 7092), an open cluster in the constellation Cygnus.
Subs: 12 light @ 300s, darks and bias frames, ISO400.
1000D on the 6" R-C, guided with PHD.