M81 in Ursa Major -Patrick Khosraw, CSM observatory
Variable star BL Camelopardalis Special Projects student Ren Campos took 45 images over almost 2 hours, to create this light curve of BL Cam. BL Cam is a pulsating variable star and completes one full cycle in under 1 hour! The period is clearly visible and varies by about .3 mag. each cycle. The comparison (non-variable) stars were located in the same field, and are not seen here. Graph: Excel.
Light curve of BL Cam. -Ren Campos, CSM observatory