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User / mtrosenthal
Mauri Rosenthal / 312 items

N 8 B 631 C 2 E Jan 15, 2025 F Jan 15, 2025
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The moon passed in front of Mars on Monday night. This brief timelapse of the moment of "occultation" and re-emergence shows the view through a small but powerful backyard telescope married with contemporary imaging gear. I am pleased to see sufficient detail on the surface of Mars to note how much the planet rotated during the hour and a quarter it was hidden by the moon.

Tech Stuff:
Questar 3.5"/TV 2.5X PowerMate/QHY 5iii 178 camera. Captured in SharpCap, processed with PIPP, AstroSurface, and Luxea Pro video editor. From my yard in Westchester County NY.

Tags:   questar Moon and Mars

N 7 B 379 C 2 E Jan 12, 2025 F Jan 12, 2025
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Questar 3.5" / TV 5X PowerMate/ QHY 5iii178 color cam
Captured with SharpCap planetary tracking and livestacking, processed with AstroSurface and PixInsight.
For reference the calculated focal length is 5900 mm, a tad less than the native 1400mm X 5x (scope focal length and PowerMate factor varies with camera position).

Tags:   Mars questar astrophotography

N 5 B 458 C 2 E Jan 4, 2025 F Jan 4, 2025
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A timelapse of the Great Red Spot transiting the face of Jupiter, compressing 4 real hours down to 3 seconds. I deleted moments obscured by clouds, causing the appearance of accelerated movement during the first third of the transit. Ganymede (L) and Io move outwards.
Questar 3.5"/TV 5X PowerMate/QHY 5iii 178/ IR-cut filter/RST 135E mount. Captured with SharpCap; processed with AS4/AstroSurface/PixInsight and PIPP. From my yard in Westchester County, NY.

Tags:   Jupiter Great Red Spot Questar Televue PowerMate

N 121 B 5.2K C 15 E Sep 15, 2024 F Dec 29, 2024
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Narrowband image captured September 2024, tawdry Hubble palette variation.
Tech Stuff: Borg 71FL/Borg 1.08 flattener/ZWO ASI 533Mono/ Astronomik NB filter set HA 8 second exposures X 150 min; SII 15 second exposures X 115 min; OIII 8 seconds X 180 min. Unguided RST 135E mount with SharpCap Livestacking, captured over 5 nights from my yard in Westchester County, NY.

Tags:   astrophotography Narrowband Nebula Veil Nebula Witch's Broom space

N 3 B 494 C 2 E Nov 16, 2024 F Nov 16, 2024
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Questar 3.5"/Baader D-ERF/ TV 2.5X PowerMate/DayStar Quark Chromosphere/ QHY 5iii 174 mono. Processed with AS4; imppg; PIPP, and PixInsight for false color. Timelapse spans a 30 minute period and repeats 3 times.

Tags:   questar DayStar Quark H-alpha Hydrogen Alpha Solar Prominence Sunspot Sun TeleVue astrophotography Chromosphere


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