Helped Risa recognise the field of view in the Andromeda galaxy she had imaged. She wanted to know if she was seeing the galactic arm.
Short answer: yes.
Remind her that with her 8" SCT, she was at high magnification! Tight on the galaxy centre and M32. I estimated the field to be less than 40 by 25 arc minutes. Only getting a fraction of the entire galaxy. Also was seeing stars down to magnitude 15 and 16!
Sent her some charts from SkyTools.
Tuesday, October 08, 2013
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