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Details:
This will be my last brightness estimate of the nova. It's getting too faint for me to track it further visually from the back yard, even at the edge of town on a moonless night with the target near the meridian with my biggest scope: comparison star 135 (i.e. it's mag 13.5) can be held with averted vision while fainter stars come and go. In the eyepiece the nova was initially invisible, but after getting a definitive fix on its location, with persistance it became marginally easier to see than star 135.
Nova in red tick marks; comparison stars in green (in tenths with no decimal point).
#1: Full FOV of 100mm lens (with edges trimmed)
#2. Display at 1:1 centered on nova
Photo data:
Panasonic GX8, Lumix 35-100mm lens @ 100mm, iOptron SkyTracker (v2)
20 x (f/2.8, 60 sec, ISO 1600) = 20 min
July 2-3, 2021 ~midnight MDT (July 3, 6:00 UT)
N up, W right. FOV ~ 10° x 7.5°.
Visual magnitude estimate:
mag 13.3, 10" Orion Dob @ 92x & 240x
comparison stars from SkySafari Pro 6 for the iPad (GAIA catalog)
July 3, 2021 1:30am MDT (July 3, 7:30 UT)
Photographer's website:
No URL provided.
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