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Old 29-08-2018, 06:00 PM
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Terry B
Country living & viewing

Terry B is offline
 
Join Date: Mar 2006
Location: Armidale
Posts: 2,790
Nice image of a pretty galaxy. Well done.


Actually I have an interesting object in Octans.
It isn't all boring.

Alp Oct is a 5.15 mag star that is catalogued as an EB star and a spectroscopic binary. The EB period is 2.88 days on very minimal data but the spectroscopic period is 9.03 days. There is clearly an error. I have measured the spectra and found a period of 2.87 days so the SB data seems to be incorrect. You can always find something interesting even in dim parts of the sky.
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