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NGC 358

Summary

NGC 358 is an asterism of four stars in the constellation of Cassiopeia. Two of the members were found to have a similar distance of roughly 1700 light years with Hipparcos data, although the other two did not have well-constrained distances, so its exact nature was uncertain.

NGC 358
NGC 358 with PanSTARRS
Observation data (J2000.0 epoch)
Right ascension01h 05m 11.00s[1]
Declination+62° 01′ 18.0″[1]
Distance1700 ± 300
Apparent dimensions (V)2.5′[2]
Physical characteristics
Associations
ConstellationCassiopeia
See also: Open cluster, List of open clusters

Gaia DR3 data shows that the two members TYC 4021-519-1 and TYC 4021-575-1 are not associated due to their very different proper motion and radial velocity. The distance remains remarkable similar for both stars from the Gaia parallax. The other two stars have larger distances.[3]

The asterism was discovered on February 4, 1865, by the German-Danish astronomer Heinrich Louis d'Arrest.[4]

Individual Objects edit

Component Right Ascension Declination Distance (parsec) Brightness Reference
TYC 4021-519-1 01h 05m 03.5s +62° 01′ 41.4″ 537 ± 5 11.2
  • SIMBAD
  • Gaia DR3[3]
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

USNO-A2.0

References edit

  1. ^ a b "NGC 358". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 14 December 2017.
  2. ^ Students for the Exploration and Development of Space Archived 2007-10-20 at the Wayback Machine
  3. ^ a b Gaia Collaboration (2022-05-01). "VizieR Online Data Catalog: Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)". VizieR Online Data Catalog: I/355.
  4. ^ Seligman, Courtney. "NGC 358". Celestial Atlas. Retrieved 7 December 2018.

External links edit

  • DSS Images for NGC 300 through NGC 399
  • SEDS
  • VizieR-Katalog
  • VizieR Umgebungssuche