The Moon. Craters: Ptolemaeus, Alphonsus, Arzachel, Al-Battani.

The Moon. Craters: Ptolemaeus, Alphonsus, Arzachel Date: 21.05.21 Time: UT +3; 20:51 Location: Mikhaylovsk, 5th-floor balcony; Apparent diameter: 0°32' 30.27" Magnitude: -11.69 Altitude: 49° Azimuth: 198° Illumination: 70.9% of the visible lunar surface Distance from Earth: 0.002457 AU (367,499 km) Equipment: Telescope: SW 150/750 EQ5 OnStep Camera: ZWO ASI462MC Filter: ZWO UV/IR CUT Svbony 3x Barlow Video: 150 seconds. 6,000 frames captured Software: FireCapture (Gain: 30 (5%), Exposure: 20.00ms, FPS: 40, Resolution: 1936x1096) / AutoStakkert3 / Astra Image 3.0SI / Photoshop CC 2015