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Sh2-261: Lower's nebula

Technical card

Resolution: 2749x2199

Dates:Dec. 20, 2016Jan. 21, 2017Feb. 2, 2017

Frames:
Astrodon 3nm OIII: 13x1200" -15C bin 1x1
Astrodon Ha 5nm: 64x1200" -15C bin 1x1

Integration: 25.7 hours

Avg. Moon age: 16.91 days

Avg. Moon phase: 40.93%

Astrometry.net job: 1471706

RA center: 92.256 degrees

DEC center: 15.762 degrees

Pixel scale: 1.024 arcsec/pixel

Orientation: -5.086 degrees

Field radius: 0.501 degrees

Description

The region is ionised by the runaway star HD 41997, located inside the
blue core of the image, immediately above a curious lasso-like
structure.

Apologies for the multiple diffraction spikes affecting the bright stars, it's the result of using two scopes.

Comments

Author

Epicycle
Epicycle
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Sh2-261: Lower's nebula, 





    
        

            Epicycle

In these public groups

UK Astro-Imaging
Narrowband imaging