HL Aurigae / HL Aur
Light curves of two primary minima of the EB type eclipsing binary HL Aurigae / HL Aur taken with the 2" Titan at Somerby Observatory.
These two primary minima were combined into a phase diagram with the best fit period being 0.062254d. This is consistent with the catalogue values of 0.6225051 d (GCVS), 0.6225058 d (AAVSO VSX) and 0.6225048 d (Kreiner). (Accessed 9 march 2017).
There is little o-c activity in this system.
Note; the little 'step' just after phase 1.0, which occurs in the light curves of both minima. While this is surely an artefact, I intend to make more observations of this star in order to confirm this.
These are a couple of primary minima I observed visually with my 10" Newtonian from Somerby Observatory.
[ Page updated 9 March 2017 ]