The outburst of SS Cyg is over for now 23./24.8.2012

Date: 23./24.8.2012
Time: 00:45-02:10
Observing site: Visitor Centre, Seitseminen National Park, Finland
Instrument: L102/1000mm (4” refractor)

NELM: 5,7
SQM: 21,17
Darkness of the background sky: 2
Seeing: 2
Transparency: 3
Weather: Mostly clear sky, light wind, no Moon, humid air, 8°C

Objects observed: SS Cyg (visual), R Tri (visual), T Cas (visual)

During this session, observing conditions weren’t so ideal than during the last session. This time transparency and hence NELM were not so good. SQM was about 21,17 and NELM 5,7. Nevertheless the conditions were good enough for observing variable stars, although not so optimal for DS sketching. That’s why I observed only variable stars this time.

It seems that the outburst of SS Cyg is over now, and the star is going back to it’s normal brightness. The duration of this outburst was about 14 days, which means that this was a long outburst for the star. You can see the AAVSO light curve of the star here. Besides SS Cyg, I observed also R Tri and T Cas. R Tri is getting fainter, and T Cas is still around it’s maximum.
Variable star observations:

Date Time Star Mag. Comp.
23./24.8.2012 01.04 SS Cyg 9.8 9.8/10.8
23./24.8.2012 01.30 R Tri 8.2 7.7/8.0
23./24.8.2012 02.00 T Cas 9.2 8.8/9.2

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