Hemisphere:  Northern  ·  Constellation: Orion (Ori)
Sh2-261 Lower Nebula, 



    
        

            Alfredo Beltrán
Sh2-261 Lower Nebula
Powered byPixInsight

Sh2-261 Lower Nebula

Sh2-261 Lower Nebula, 



    
        

            Alfredo Beltrán
Sh2-261 Lower Nebula
Powered byPixInsight

Sh2-261 Lower Nebula

Technical card

Imaging telescopes or lenses: Celestron C9.25 Edge HD

Imaging cameras: ZWO ASI 071MC PRO Cool

Mounts: CEM60

Guiding telescopes or lenses: Stellarvue SV F60M3

Guiding cameras: Orion StarShoot AutoGuider

Focal reducers: Starizona Hyperstar C9.25HD  ·  Starizona Hyperstar C9,25  ·  Starizona HyperStar3

Software: Sequence Generator Pro  ·  PixInsight  ·  PHD2

Filters: IDAS NBX Nebula Boost Filter

Accessory: Starizona MicroTouch Autofocuser


Dates:Jan. 19, 2021

Frames:IDAS NBX Nebula Boost Filter: 55x300" (gain: 1.00) -10C bin 1x1

Integration: 4.6 hours

Darks: ~100

Flats: ~50

Flat darks: ~100

Avg. Moon age: 6.15 days

Avg. Moon phase: 36.99%

Bortle Dark-Sky Scale: 7.00

Temperature: 8.00


Basic astrometry details

Astrometry.net job: 4236016

RA center: 6h 8' 57"

DEC center: +15° 49' 30"

Pixel scale: 1.829 arcsec/pixel

Orientation: 90.145 degrees

Field radius: 1.171 degrees


Resolution: 3825x2575

Locations: Casa, Bogotá, Colombia

Data source: Backyard

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