Xi Scorpii, STF 1999 (Double-Double Star) - Sketch

xi scorpii and stf 1999 double stars drawing

Location and conditions: Haifa city, Israel, ~3.5 mag. sky.
Date: 28/04/2007, 01:00
Instrument: Orion Skyview Pro 8" f/5 Newtonian, 125X.
Drawing details: Graphite pencil sketch on a white paper, made while observing with a telescope under a red light. Processed in Photoshop. Observer: Michael Vlasov.