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Sh2-129 & OU4 - The Flying Bat and The Giant Squid, 





    
        

            Michel Makhlouta
Sh2-129 & OU4 - The Flying Bat and The Giant Squid

Sh2-129 & OU4 - The Flying Bat and The Giant Squid

Technical card

Resolution: 4235x3207

Dates:Sept. 24, 2019Sept. 27, 2019

Frames:
ZWO 31mm Ha 7nm: 90x300" (gain: 139.00) -15C bin 1x1
ZWO 31mm OIII 7nm: 428x300" (gain: 139.00) -15C bin 1x1

Integration: 43.2 hours

Darks: ~50

Flats: ~50

Bias: ~200

Avg. Moon age: 26.35 days

Avg. Moon phase: 13.54%

Bortle Dark-Sky Scale: 5.00

Astrometry.net job: 2951319

RA center: 21h 8' 15"

DEC center: +60° 1' 55"

Pixel scale: 2.022 arcsec/pixel

Orientation: 327.273 degrees

Field radius: 1.492

Locations: Home, Batroun, North, Lebanon

Data source: Backyard

Description

Sh2-129, or the Flying Bat nebula, is an emission nebula approximately 1300 light-years away from Earth, in the constellation Cepheus.

Ou4, or the Giant Squid nebula, is about 2300 light-years away from Earth and discovered lately in 2011 by Nicolas Outters, an amateur astronomer. It represents a spectacular outflow driven by HR8119, a triple system of hot, massive stars seen near the center of the nebula. The truly giant Squid Nebula would physically be nearly 50 light-years across.

On a more personal note. I haven't figured out the issue with my refractor yet, the combination of focuser tilt and reducer spacing is making it a bit harder, and somehow confusing. In any case, I've moved my setup back to my balcony, which makes it easier to image any day the sky is clear, but with the limitations of the balcony roof and the city's light pollution.

As always, I am undecided by two outcomes. A more natural one, and the one I like.

Comments

Author

makhlouta
Michel Makhlouta
License: None (All rights reserved)
3743
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Revisions

  • Sh2-129 & OU4 - The Flying Bat and The Giant Squid, 





    
        

            Michel Makhlouta
    Original
  • Final
    Sh2-129 & OU4 - The Flying Bat and The Giant Squid, 





    
        

            Michel Makhlouta
    B

Sky plot

Sky plot

Histogram

Sh2-129 & OU4 - The Flying Bat and The Giant Squid, 





    
        

            Michel Makhlouta

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