[vsnet-alert 18816] V404 Cyg photometry

Bojan Dintinjana bojan.dintinjana at fmf.uni-lj.si
Wed Jul 1 20:32:11 JST 2015


V404 Cyg Photometry

Observations obtained last night with the 60-cm, f/3.3 Cichocki 
telescope and Rc filter at Crni Vrh Observatory show the object faded to 
Rc magnitude about 16.3. Series of exposures with 60s cadence, covering 
the 3.8 hour time interval were taken on 2015 Jun. 30.888 - Jul. 
1.048UT. Comparison stars were obtained from UCAC4 catalogue. Violent 
oscillations disappeared, only slight variations of ~0,2 magnitude and 
about 30 minute quasi period remained.

Light curve: 
http://www.observatorij.org/vstars/V404Cyg/V404Cyg_2015-06-30_R.png

B. Dintinjana and H. Mikuz
Crni Vrh Observatory



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