Clouds on Venus

Venus, June 3, 2023, 18:20 Kazan, right bank of the Volga River, Venus altitude 40°. - Sky-Watcher Dob 12″ Retractable SynScan GOTO - Explore Scientific 5x Barlow lens - ZWO ADC atmospheric dispersion corrector - Violet filter W47 + UV/IR cut filter SZS22 (in blue and green channels), violet filter W47 + yellow 720-900 nm filter (in red channel) - ZWO ASI 462mc color camera Stacking in Autostakkert: 8 stacks, 2000 frames out of 8000 for blue and green channels, 1 stack of 2000 frames out of 8000 for the red channel. Capture settings in FireCapture: Filter W47 + SZS22: fps 101, 6.893 ms, gain 214. Filter W47 + yellow: fps 74, 2.179 ms, gain 182. Observed before imaging. The violet filter W47 with an 8.8/82 eyepiece + 2x Barlow showed cloud features on Venus at 340x magnification at 17:00, altitude 50°.