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Contains:  NGC 436, NGC 457, The star φCas
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NGC457 Owl cluster, 


NGC457 Owl cluster
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NGC457 Owl cluster

Technical card

Dates:Oct. 31, 2018

Baader Blue 36 mm: 35x180" bin 1x1
Baader Green 36 mm: 20x180" bin 1x1
Baader Luminance 36 mm: 50x180" bin 1x1
Baader Red 36 mm: 20x180" bin 1x1

Integration: 6.2 hours

Avg. Moon age: 21.93 days

Avg. Moon phase: 52.28%

Basic astrometry details job: 2944034

RA center: 1h 19' 34"

DEC center: +58° 14' 34"

Pixel scale: 2.140 arcsec/pixel

Orientation: 265.056 degrees

Field radius: 1.009 degrees

Resolution: 2400x2400

Locations: Remote observatory, Kiev, Ukraine

Data source: Own remote observatory

Remote source: Non-commercial independent facility


NGC 457 (also known as the Owl Cluster, the ET Cluster, or Caldwell 13) is an open star cluster in the constellation Cassiopeia. It lies over 7,900 light years away from the Sun. It has estimated age of 21 million years. The cluster is sometimes referred by amateur astronomers as the Owl Cluster. Two bright stars, magnitude 5 Phi-1 Cassiopeiae and magnitude 7 Phi-2 Cassiopeiae can be imagined as eyes. The cluster features a rich field of about 150 stars of magnitudes 12-15.
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License: Attribution Creative Commons

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NGC457 Owl cluster,