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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:57 
Transit: 13:04 
Sunset: 21:10
wb_twilight   (Nautical Twilight)   What's Visible Now?
All Constellations »  Cassiopeia »  Deep Sky Objects » 

NGC 457 (Owl Cluster) - Open Cluster in Cassiopeia

Above the horizon.  Circumpolar today
Altitude: 28.1°   Azimuth: 28.6°   Direction: North-North-East

NGC 457 is a Open Cluster in the Cassiopeia constellation. NGC 457 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. Given its visual magnitude of 6.4, NGC 457 is easily visible with the help of a small binocular.

The image below is a photograph of NGC 457 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5000x0.5000 degrees (30.00x30.00 arcmins).

Image of NGC 457 (Owl Cluster) - Open Cluster in Cassiopeia star
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DSS2 image of NGC 457 in the Red band. The green region on the image is a representation of the major (7.8 arcmin) and minor (7.8 arcmin) axes of the object's apparent size.

Apparent Coordinates

01h 21m 06s
+58° 25’ 08”

J2000 Coordinates

01h 19m 32s
+58° 17’ 26”

Finder Chart

The simplified sky charts below show the position of NGC 457 in the sky. The first chart has a field of view of 60° while the second one has a field of view of 10°.

Finder chart NGC 457 (Owl Cluster) - Open Cluster in Cassiopeia star
Simplified finder chart for NGC 457 (Owl Cluster) - Open Cluster in Cassiopeia.

Finder chart NGC 457 (Owl Cluster) - Open Cluster in Cassiopeia star
Simplified finder chart for NGC 457 (Owl Cluster) - Open Cluster in Cassiopeia.

Photometric Information

The following table lists the magnitude of NGC 457 in different bands of the electomagnetic spectrum (when available), from the B band (445nm wavelength, corresponding to the Blue color), to the V band ( 551nm wavelength, corresponding to Green/Yellow color), to the J, H, K bands (corresponding to 1220nm, 1630nm, 2190nm wavelengths respectively, which are colors not visible to the human eye).

6.97
6.4

For more information about photometry in astronomy, check the photometric system article on Wikipedia.

Apparent Size

The following table reports NGC 457 apparent angular size. The green area displayed on top of the DSS2 image of NGC 457 is a visual representation of it.
7.8 arcmin
7.8 arcmin

Rise and Set Times

Location: Greenwich, UK
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

NGC 457 (Owl Cluster) - Open Cluster in Cassiopeia is circumpolar and transits at 05:57 UTC (altitude: 83.2°)