Jupiter July 4, 2019 GRS and Io Transits, Questar 3.5" image
Captured July 4, 2019 at around 10:45pm ET (02:45 5July UT). Jupiter is still relatively close to earth since reaching opposition in mid-June, just over 400 million miles away. The Great Red Spot rotates into view every 10 hours, and Jupiter is only easily viewed from my yard for about an hour each clear night as it passes between the rooftops and trees. Here the GRS is about to disappear again but the shadow of moon Io has just started crossing the face of the gas giant.
Tech Stuff: Questar 3.5"/TV 2.5X PM/QHY5III174M/. Captured with Sharpcap using flat subtraction and 80ms exposures. RGB frames processed with PIPP, AS3, and Imppg; Derotated and combined with WinJupos; finished in RS6, PI, and ACDSee. From my yard in Westchester,
Jupiter July 4, 2019 GRS and Io Transits, Questar 3.5" image
Captured July 4, 2019 at around 10:45pm ET (02:45 5July UT). Jupiter is still relatively close to earth since reaching opposition in mid-June, just over 400 million miles away. The Great Red Spot rotates into view every 10 hours, and Jupiter is only easily viewed from my yard for about an hour each clear night as it passes between the rooftops and trees. Here the GRS is about to disappear again but the shadow of moon Io has just started crossing the face of the gas giant.
Tech Stuff: Questar 3.5"/TV 2.5X PM/QHY5III174M/. Captured with Sharpcap using flat subtraction and 80ms exposures. RGB frames processed with PIPP, AS3, and Imppg; Derotated and combined with WinJupos; finished in RS6, PI, and ACDSee. From my yard in Westchester,