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Psi1 Aur spectrum


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About this observation
Kevin Gurney
Time of observation
27/12/2016 - 23:18
Psi1 Aur
Observing location
Celestron 8SE
Alpy 600
Skywatcher AZ-EQ6-GT
Atik 460EX
11 subs of target, each 120s.
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First use of Alpy with Celestron 8SE (I had done some prior work on bright stars with a 70mm refractor). The instrument response was derived using Tau Aur.  Calibration and flats using the Alpy calibration module. Data reduction in (beta) Demetra.

The target is fairly bright so probably not difficult to get good data here, but  I was pleasantly surprised to see a good match with a reference spectrum for another K5 star  (HD47914 - Miles dbase) as shown in the wavelength-range-restricted plot. There are differences in general shape maybe instrument response needs more work.

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