Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  NGC 436  ·  NGC 457  ·  The star φCas
The Owl Cluster (NGC 457) and Open Cluster NGC 436, 



    
        

            Scott Davis
The Owl Cluster (NGC 457) and Open Cluster NGC 436
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The Owl Cluster (NGC 457) and Open Cluster NGC 436

Technical card

Imaging telescopes or lenses: Explore Scientific ED102 APO

Imaging cameras: Canon EOS Rebel T3i

Mounts: Celestron CGEM Hypertuned

Guiding telescopes or lenses: Orion ShortTube 80

Guiding cameras: Orion StarShoot Autoguider

Focal reducers: Astro-Tech AT2FF

Software: Sequence Generator Pro  ·  DeepSkyStacker  ·  Photoshop CS6  ·  Scott Davis AAPPS

Filters: One-Shot Color

Accessory: Robofocus  ·  Home Made Peltier Cooler for T3i


Dates:Sept. 29, 2014

Frames:One-Shot Color: 108x30" (54') ISO800

Integration: 54'

Darks: ~30

Flats: ~50

Flat darks: ~50

Bias: ~50

Avg. Moon age: 5.01 days

Avg. Moon phase: 25.86%

Bortle Dark-Sky Scale: 7.00


Basic astrometry details

Astrometry.net job: 379368

RA center: 1h 18' 16"

DEC center: +58° 15' 54"

Pixel scale: 2.156 arcsec/pixel

Orientation: -86.493 degrees

Field radius: 1.076 degrees


Resolution: 620x409

Locations: My Backyard, Clovis, California, United States

Description

The Owl Cluster, catalogued as NGC 457, is one of my favorite open clusters to observe in the night sky. The distinctive shape of the owl is punctuated by two bright stars that can be imagined as the eyes of the owl. Also visible in this field of view is another open cluster, NGC 436, which can be seen near the lower-right corner.

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The Owl Cluster (NGC 457) and Open Cluster NGC 436, 



    
        

            Scott Davis