On the Photometric Detection of Eclipse on Variable Star AO Serpentis
Abstract
Abstract
This research is on the Photometric observation of Variable star AO Ser so as to observe and report the eclipse phenomenon.
The target was observed with the 0.4m SBIG optical telescope from Las Cumbres Observatory Global Telescope Network
remotely. The photometric analysis was done using SAO Image Viewer (DS9) and IRIS software which enabled us to plot
the light curve the deduce eclipses. Results from our photometric analysis revealed that AO Ser is an eclipsing binary
variable star with significant flares. The average values of from the analysis of the V-filter of AO Ser, gaveA1 = 1.35, A2
= 0.229, D1 = 187×103
hrs. (51.94secs), D2 = 78.4×103
hrs. (21.7secs) and d1 = 25.4×103
hrs. (7.055secs), d2 = 0hrs (0secs)
while the B-filter gaveA1 = 0.64, A2 = 0.143, D1 = 184×103
hrs. (51.11secs), D2 = 76.5×103
hrs. (21.25.0secs) and d1 =
25.0×103
hrs. (6.944secs), d2 = 0hrs (0secs) respectively. The value of d2 = 0secs were the same both for V and B Filters
observation, demonstrating that the primary candidate of AO Ser is smaller than its secondary companion, hence the
secondary component was not totally eclipsed. The results from our photometric data showed that AO Ser is an eclipsing
star with an average surface temperature of 9447K classifying the source as a red giant.
