Castor (Alpha Geminorum Double Star) - Sketch

Castor - alpha gemini sketch

Location and conditions: Rehovot City, Israel, ~4.3 mag. sky.
Time and date: 06/01/2012 , 23:00.
Instrument: Stellarvue ED80 NHGT refractor, 5mm Vixen Lanthanum Wide (112X).
Drawing details: Graphite pencil sketch on a white paper, made while observing with a telescope under red light. North is up, east is left.
Processed in Photoshop. Observation by Michael Vlasov.

Original drawing:

castor original drawing