| NGC 358 | |
|---|---|
 NGC 358 withPanSTARRS | |
| Observation data (J2000.0epoch) | |
| Right ascension | 01h 05m 11.00s[1] |
| Declination | +62° 01′ 18.0″[1] |
| Distance | 1700 ± 300 |
| Apparent dimensions (V) | 2.5′[2] |
| Physical characteristics | |
| Associations | |
| Constellation | Cassiopeia |
| See also:Open cluster,List of open clusters | |
NGC 358 is anasterism of four stars in the constellation ofCassiopeia. Two of the members were found to have a similar distance of roughly 1700 light years withHipparcos data, although the other two did not have well-constrained distances, so its exact nature was uncertain.
Gaia DR3 data shows that the two members TYC 4021-519-1 and TYC 4021-575-1 are not associated due to their very differentproper motion andradial velocity. The distance remains remarkable similar for both stars from the Gaiaparallax. The other two stars have larger distances.[3]
The asterism was discovered on February 4, 1865, by the German-Danish astronomerHeinrich Louis d'Arrest.[4]
| Component | Right Ascension | Declination | Distance (parsec) | Brightness | Reference |
|---|---|---|---|---|---|
| TYC 4021-519-1 | 01h 05m 03.5s | +62° 01′ 41.4″ | 537 ± 5 | 11.2 | |
| TYC 4021-575-1 CMC 600551 | 01h 05m 15.4s | +62° 01′ 37.1″ | 544 ± 4 | 11.8 | Gaia DR3 |
| TYC 4021-649-1 | 01h 05m 05.7s | +62° 00′ 54.5″ | 947 ± 14 | 11.6 | Gaia DR3 |
| USNO-A2.0 1500-01120974 | 01h 05m 19s | +62° 00′ 57″ | 3238+144 −131 | 12.5 | Gaia DR3 |
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