Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  34 Cas  ·  34 phi Cas  ·  HD236689  ·  HD236697  ·  HD7902  ·  HD8159  ·  NGC 457  ·  Owl Cluster  ·  The star φ Cas
Open Cluster NGC 457 - The Owl Cluster, Tom Wildoner
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Open Cluster NGC 457 - The Owl Cluster

Open Cluster NGC 457 - The Owl Cluster, Tom Wildoner
Powered byPixInsight

Open Cluster NGC 457 - The Owl Cluster

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Description

This is the Owl Cluster in Cassiopeia, also known as NGC 457. The Owl Cluster is about 7,900 light-years away. The two bright stars inside this cluster are magnitude 5 Phi-1 Cassiopeia and magnitude 7 Phi-2 Cassiopeia.

Observation data (J2000.0 epoch)
Right ascension: 01h 19m 32.6s
Declination: +58° 17′ 27″
Distance: 7.922 kly
Apparent magnitude (V): 6.4
Apparent dimensions (V): 13.0′

Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO ASI2600MC camera running at 0F, 54x60 second, Sky-Watcher EQ6R-Pro pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: August 10, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).

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Open Cluster NGC 457 - The Owl Cluster, Tom Wildoner

In these public groups

Open Star Clusters