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Re: GK Per Outburst

Posted: Fri Feb 17, 2023 9:20 am
by Joan Guarro Flo
Hello all,

GK Per is in the boundary of my equipment detection, but it's possible that despite the noise the graphic would still be useful.

Cheers, Joan Guarro.

Re: GK Per Outburst

Posted: Sun Feb 19, 2023 7:50 pm
by Christophe Boussin
Hello all,

I obtained a new spectrum of GK Per with my Alpy 600 on 15 February at 20:28 UT (resolution of 520, JJ = 2459991.3942) with an acquisition time of 80 min (8 x 600s) :
GK Per on February 15th, 2023
GK Per on February 15th, 2023
_gkper_20230215_894_Christophe Boussin_3700_7565.png (93.14 KiB) Viewed 4250 times
GK Per on February 7th, 12th and 15th, 2023 (identification of some lines from PlotSpectra)
GK Per on February 7th, 12th and 15th, 2023 (identification of some lines from PlotSpectra)
The evolution of the spectrum profile is compatible with the light curve :
Light curve of GK Per (Johnson V : green squares) (AAVSO)
Light curve of GK Per (Johnson V : green squares) (AAVSO)
Clear skies to all !!

Christophe BOUSSIN

Re: GK Per Outburst

Posted: Wed Mar 08, 2023 4:45 pm
by Jacques Michelet
Another spectrum made in 2 parts, and in 2 consecutive days (I could not make it in one night, mist and clouds)
gkper_2023-02-17&18_Jacques Michelet.png
Regards,

Jacques