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NGC457
Open Star Cluster
| Right Ascension | 01h 19m 35s | Best Seen | 10/15-5/1 |
| Declination | 58° 17' 12" | Magnitude | 6.4 |
| Constellation | Cassiopeia | ||
Actual |
Compared to ... |
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| Distance | ~7,900 ly | -- |
| Diameter | ~30 ly | -- |
| Number of Stars | ~150 | -- |
| Actual Brightness | -- | -- |
| Age | ~ 21 million years | |
| Integrated Spectral Type | -- | G2 V |
| Density (gram/cubic cm) | -- | -- |
What To Look For Through The Telescope
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Recommended eyepiece: 40mm or 80 mm.
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Through the telescope the cluster will appear to be individual star; much like sugar or salt sprinkled on a table top.
NGC457 Information
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This cluster has about 100 stars brighter than 13th magnitude.
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The average separation of the stars in the cluster is about 1 light year.
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This is a young group of stars.
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References
| Item | Updated | Notes |
| Coordinates | 2017-05-07 | https://en.wikipedia.org/wiki/NGC_457 |
| Magnitude | 2017-05-07 | https://en.wikipedia.org/wiki/NGC_457 |
| Distance | 2017-05-07 | https://en.wikipedia.org/wiki/NGC_457 |
| Actual Brightness | -- | |
| Number of Stars | 2017-05-07 | https://en.wikipedia.org/wiki/NGC_457 |
| Diameter | 2003-01-05 | Burnham says “cannot be much less than 30 light years” |
| Age | -- | |
| Integrated Spectral Type | -- | |
| Other Information | 2017-05-07 | http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=ngc457&submit=SIMBAD+search https://en.wikipedia.org/wiki/NGC_457 |