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Details:
After a failed attempt yesterday using a wide-angle with shorter exposures, I tried again today with a telephoto and somewhat longer exposures and got success, if one calls recording a faint but distinct blob in the proper location relative to Spica in every shot until it set behind mountains, success. No clue how bright the comet is--Virgo doesn't teem with comparison stars when the sky's still so bright--but it's assuredly there. Let's hope October realizes better viewing circumstances.
Astro data (all times MDT):
... sunset: 7:42pm
... comet-set (behind local mountains): 8:36pm
... comet-set (assuming a flat horizon): 8:48pm
... dark: 9:10pm
Photo data:
Panasonic G9, Lumix 100-300mm @ 300mm, iOptron SkyTracker Pro
... 7 frames x (f/5.6 , 5s, ISO 200); cadence: ~= 30s; timespan: 8:32pm-8:35pm MDT
... N upper right, W clockwise; FOV: 3.25° x 2.5°
... date: Sep 14, 2025 during evening twilight
Photographer's website:
No URL provided.
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