Castor is a sextuple star system, containing Castor A, B, and C. Castor A is the lower, slightly brighter star, Castor B is the upper, slightly dimmer star, and Castor C is faintly off to the left.
Telescope: Sky-Watcher 250P Go-To (10")
Camera: ZWO ASI678MC
Aquisition: 3000 frames of about 1 minute 30 seconds. Used the PIPP-AutoStakkert!-Photoshop workflow.
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