Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)
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Sh2-188 RGB (OSC) - The Shrimp Nebula, 



    
        

            andrea tasselli
Sh2-188 RGB (OSC) - The Shrimp Nebula
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Sh2-188 RGB (OSC) - The Shrimp Nebula

Getting plate-solving status, please wait...
Sh2-188 RGB (OSC) - The Shrimp Nebula, 



    
        

            andrea tasselli
Sh2-188 RGB (OSC) - The Shrimp Nebula
Powered byPixInsight

Sh2-188 RGB (OSC) - The Shrimp Nebula

Acquisition details

Dates:
Aug. 28, 2021 ·  Sept. 7, 2021 ·  Sept. 27, 2021 ·  Sept. 29, 2021 ·  Oct. 3, 2021 ·  Oct. 10, 2021
Frames:
Optolong L-Pro 2": 48×180(2h 24′) (gain: 119.99) -20°C bin 1×1
Optolong L-Pro 2": 108×180(5h 24′) (gain: 120.00) bin 1×1
Optolong L-Pro 2": 138×180(6h 54′) (gain: 120.00) -20°C bin 1×1
Integration:
14h 42′
Avg. Moon age:
15.86 days
Avg. Moon phase:
35.00%
Bortle Dark-Sky Scale:
6.00
Mean FWHM:
2.26

Basic astrometry details

Astrometry.net job: 5801382

RA center: 01h30m27s.8

DEC center: +58°2508

Pixel scale: 0.781 arcsec/pixel

Orientation: 205.362 degrees

Field radius: 0.436 degrees

Resolution: 3136x2520

File size: 5.6 MB

Locations: Home, Lincoln, United Kingdom

Data source: Backyard

Description

This 2nd iteration on the subject of the Shrimp PN tries to address various issues of the previous one, namely that most of the integration was make in H-alpha thus skewing the colour cast somewhat and, consequence to that, the nearly total absence of colour in the star field (except for the white dwarf source of the PN). Obviously here the field is much larger and thus including considerably more sky real estate. On the subject itslef I'm glad that I finally manage to "close the circle" so the further away portion of the envelope is dimly seen in the lower half. A very faint background galaxy can also be seen, which wasn't there in the previous image. Overall I'm far from being displeased with it, only regret is that I should have bought the L-eNhance filter sooner to capture more of the PN. Next time.

Comments

Sky plot

Sky plot

Histogram

Sh2-188 RGB (OSC) - The Shrimp Nebula, 



    
        

            andrea tasselli

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