close contact eclipsing binary star photometry
HW Vir systems are evolved eclipsing binaries with a short orbital period and composed by a hot compact star and a low-mass main-sequence star. In the most plausible scenario to form these systems, the progenitor of the hot compact star evolves faster than the secondary (a low-mass main-sequence star) starting an unstable mass transfer phase and subsequently a common envelope. During the common-envelope stage, the secondary spirals in towards the primary...
StarField
North up, west right. Approx. 1x0.8 degree field of view, Moon shine included. The binary is located in a very exclusive region full of distant galaxies and maybe a small group of them... The luxury spiral near the variable star is the queen of this field...
HS 2231+2441 Agroskop (bad flat). Johnson V filter, aprox. 4h stack, Bortle 5. Original image
lx200
LX200+G3-11000 NO FILTER Original image
agroskop
Newton 30cm f/4 + QHY268M + V (Johnson) Original image
krtek
RC 10" + G2-8300 NO FILTER Original image
light curves exported from amper@muni