Huge and fast

Among plethora of variable stars there is large subset of really fast changers. It is really amazing, how these huge blobs of plasma can change their brightness significantly in the range of minutes. One subtype of this kind is delta Scuti variables, and one of this subtype representatives is V0460 And variable star (https://www.aavso.org/vsx/index.php?view=detail.top&oid=39479) This variable period is 107 minutes and last night I had 120 minutes clear sky window, so I was able to collect one whole cycle. Seeing was very good, but transparency was poor. I mage measurements with QHY163M camera and 130mm refractor with Baader V filter. Lightcurve (created with Muniwin software) is below, as well as the frame with marked variable and comparison star.

 

V0460 And variable star lightcurve
V0460 And variable star lightcurve
V0460 And variable area
V0460 And variable area

Large image here http://astrojolo.com/wp-content/uploads/2017/01/V0460And_stack_DBE_Annotated.jpg

Clear skies!

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