Near-Infrared Observations of FS Aurigae
Blesson Mathew, Sachindra Naik and N. M. Ashok (Physical Research Laboratory, Navarangpura, Ahmedabad, India)
Following the report of possible outburst of the star FS Aurigae (AAVSO Special Notice #226), the photometric observations were carried out in near-infrared J, H, and K-bands on 2010 December 5.89 UT, 6.87 and 15.86 UT using the 1.2 m Mt. Abu telescope operated by Physical Research Laboratory, Ahmedabad, India. The photometric observations were carried out in photometric sky conditions. The J-band magnitude of the star was found to be 15.21+/-0.11, 15.34+/-0.45 and 15.48+/-0.49 on 5th, 6th and 15th December 2010, respectively. The H-band magnitude of the star on 15th December 2010 was estimated to be 15.21+/-0.24. The star was below the detection limit in K-band during all three nights of observations. Our observations show the gradual decreasing trend in J-band brightness since the beginning of the observations.
infra-red,optical,cataclysmic variable,star,variables