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Contains:  NGC 2403
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Imaging telescopes or lenses: TPO 8" f/8 Ritchey-Chretien Astrograph

Imaging cameras: Nikon D5100

Mounts: CGE Pro

Software: Sequence Generator Pro  ·  PHD2 Guiding  ·  Optec FocusLock (for ONAG)  ·  PixInsight

Accessory: Optec TCF-S Focuser  ·  Innovations Foresight On-axis guider  ·  Starlight Xpress Lodestar X2

Dates:Jan. 3, 2019

Frames: 74x300" ISO800

Integration: 6.2 hours

Darks: ~10

Flats: ~25

Bias: ~25

Avg. Moon age: 27.16 days

Avg. Moon phase: 6.20%

Bortle Dark-Sky Scale: 6.00

Mean SQM: 18.50

Basic astrometry details job: 2462208

RA center: 7h 36' 56"

DEC center: +65° 35' 49"

Pixel scale: 0.613 arcsec/pixel

Orientation: 0.875 degrees

Field radius: 0.396 degrees

Resolution: 1824x1224

Locations: Home Observatory - Vickburg, Vicksburg, Michigan, United States

Data source: Backyard


NGC2403 a spiral galaxy sitting in the constellation Camelopardalis. This is one galaxy I am not very familiar with and only happen to image it because of looking at options online at Deep Sky Objects Browser.

This frame is slightly cropped due to the star distorts at the edges because I do not have a corrector in the imaging train and the D5100 has a large enough chip to see the ugly uncorrected FOV. I do have a AP corrector/reducer I will try and make work like I mentioned in the HH image posted earlier in the week. Sadly, there are not many clear night this time of year to test things out.

I sure can tell my PI processing skills are increasing with this image. The subframes barely show the galaxy and the data collection runs started with it below 45deg and in fairly heavy LP. Also shows that piles of subframes can overcome LP and still make a red zone location productive, even with broadband imaging.



License: None (All rights reserved)

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