Galactic SNR G65.3+5.7 (Sh2-91, Sh2-94, Sh2-96) (Sergey Trudolyubov)

Galactic SNR G65.3+5.7 (Sh2-91, Sh2-94, Sh2-96)

A composite HaOIIIRGB image of the ghostly old supernova remnant, G65.3+5.7 (aka "Little Cygnus Veil") taken in June-August 2019 with 135mm f/2 Rokinon lens and ZWO ASI1600MM Pro camera. The synthetic luminance was produced using a combination of Ha and OIII images and RGB luminance. R band is a combination of the original R and Ha data. B band is a blend of B and OIII images. Individual narrowband (Ha and OIII) exposures were taken with lens fully open (f2.0) and camera gain 200 and 100. Broadband exposures were taken at f4.0 and camera gain 0.

Ha: 37x600s, 41x300s (Gain 200, bin 1x1)

OIII: 49x600s (Gain 200, bin 1x1), 12x1200s (Gain 100, bin 1x1)

R: 30x120s (Gain 0, bin 1x1)

G: 29x120s (Gain 0, bin 1x1)

B: 30x120s (Gain 0, bin 1x1)

Total exposure: 24.7 hrs

Original
Final
B
C
D

B

Description: Increased image contrast

Uploaded: ...

C

Description: Inverted image in the 7nm Ha bandpass with bright stars reduced

Uploaded: ...

D

Description: Inverted image in the 8nm OIII bandpass with bright stars reduced

Uploaded: ...

Sharpless2 Objects
ZWO ASI1600MM/QHY163M
Camera Lens Astrophotography

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Status	Basic failed
Started	...
Astrometry.net job	3072280
PixInsight job	n/a
PixInsight queue size	n/a
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