Support ATel At Patreon

[ Previous | Next | ADS ]

S4 0954+65 blazar near it's maximum

ATel #7057; O. I. Spiridonova, V. V. Vlasyuk, A. S. Moskvitin (SAO RAS), V. S. Bychkova (Astro Space Center RAS)
on 13 Feb 2015; 09:45 UT
Credential Certification: Alexander Moskvitin (mosk@sao.ru)

Subjects: Optical, Blazar

Referred to by ATel #: 7080, 7083, 7093, 15344

Observations of the S4 0954+65 blazar during last night 2015.02.12 (JD = 2457066.4) with the Zeiss-1000 telescope of SAO RAS showed that the object brightened by 0.2 magnitudes more as compared to the previous epoch (ATel #7055). However, intranight variability during 2 hour observational interval showed a decline trend ~0.1 magnitudes in BVR bands with the almost constant colors: (B - V) = +0.50, (V - R) = +0.44. Most likely, we observing an absolute maximum light of the blazar. Night-average magnitudes of the object can be found in the following table (errors are given for the single frames).

JD filter mag +/- err
2457066.436 B 14.22 +/- 0.02
2457066.441 V 13.73 +/- 0.02
2457066.442 R 13.29 +/- 0.02