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Technical card

Imaging telescope or lens: Samyang 135mm f/2

Imaging camera: ZWO ASI178MM-Cool

Mount: iOptron SkyGuider Pro

Guiding telescope or lens: QHYCCD Mini Guidescope

Guiding camera: QHYCCD Q5L-II-M

Filters: 7 Brand 31mm-B7 Brand 31mm-G7 Brand 31mm-R7 Brand 31mm-L

Resolution: 3016x2036

Dates: Sept. 13, 2017

Frames:
7 Brand 31mm-B: 7x180" -10C bin 1x1
7 Brand 31mm-G: 7x180" -10C bin 1x1
7 Brand 31mm-L: 8x180" -10C bin 1x1
7 Brand 31mm-R: 12x180" -10C bin 1x1

Integration: 1.7 hours

Darks: ~20

Flats: ~23

Bias: ~50

Avg. Moon age: 21.85 days

Avg. Moon phase: 53.22%

Bortle Dark-Sky Scale: 6.00

Temperature: 20.00

Astrometry.net job: 1727575

RA center: 314.107 degrees

DEC center: 43.619 degrees

Pixel scale: 3.813 arcsec/pixel

Orientation: 167.623 degrees

Field radius: 1.927 degrees

Locations: Home, Nanjing, Jiangsu, China

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yixiandave
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North America Nebular, yixiandave