NGC 103 is a small open cluster. It is partially visible in an 8" amateur telescope under moderately light polluted skies. It is roughly 4600 light-years from the Sun.
| NGC 103 open cluster | |
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| Observation data (J2000.0 epoch) | |
| Constellation | Cassiopeia |
| Right ascension | 00h 25m 18s[1] |
| Declination | +61° 21.0′[1] |
| Distance | 4600 |
| Apparent magnitude (V) | 9.8 |
| Apparent dimensions (V) | 5′ |
| Physical characteristics | |
| Other designations | Cr 1, OCL291 |
| See also: Open cluster, List of open clusters | |
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| NGC | |
| Collinder |
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Constellation of Cassiopeia | |||||||||||||
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