Abstract:
G-band observations are important for the study of dynamics of magnetic
features in the solar photosphere and they are carried out using large
telescopes, larger than 30 cm. We installed a 40 cm DFM telescope at
one of the good sites (Ref:Site survey report submitted to Dept. of
Science and Technology, India) in India; Merak in the district of
Leh/Ladakh. We designed, fabricated and installed a back end instrument
which involves a band-pass filter at G-band wavelength (430.5nm) to
carry out observations of the solar photosphere on regular basis. In
this paper, we report the installation of the telescope and the solar
observations made with this back-end instrument. We present the details
about the instrument used, data calibration and comparison with similar
data obtained from space. We also discuss how the system can be
improved for better quality images in the near future.
