Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888
Caldwell 27 in HOO, 



    
        

            William Jordan
Caldwell 27 in HOO
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Caldwell 27 in HOO

Caldwell 27 in HOO, 



    
        

            William Jordan
Caldwell 27 in HOO
Powered byPixInsight

Caldwell 27 in HOO

Technical card

Imaging telescopes or lenses: AG Optical 12.5" iDK

Imaging cameras: SBIG STX KAF-16803 STX-16803

Mounts: Software Bisque Paramount Paramount MX+

Guiding telescopes or lenses: AG Optical 12.5" iDK

Guiding cameras: SBIG STX KAF-16803 STX-16803

Software: Photoshop  ·  PixInsight 1.8 Ripley PixInsight 1.8 Ripely  ·  Software Bisque TheSky6 Pro

Filters: Baader HA 7nm 2"  ·  Baader OIII 8.5 nm 2"


Dates:May 15, 2020

Frames:
Baader HA 7nm 2": 14x300" (1h 10') bin 1x1
Baader OIII 8.5 nm 2": 32x300" (2h 40') bin 1x1

Integration: 3h 50'

Avg. Moon age: 22.98 days

Avg. Moon phase: 41.19%

Bortle Dark-Sky Scale: 7.00


Basic astrometry details

Astrometry.net job: 3628289

RA center: 20h 12' 11"

DEC center: +38° 21' 18"

Pixel scale: 1.405 arcsec/pixel

Orientation: 359.993 degrees

Field radius: 0.546 degrees


Resolution: 2048x1906

Locations: Ye Olde Driveway, The Woodlands, TX, United States

Data source: Backyard

Description

Crescent Nebula in narrowband

Comments

Sky plot

Sky plot

Histogram

Caldwell 27 in HOO, 



    
        

            William Jordan