Titre du document

The old open Cluster NGC 2420.

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Nom du Corpus

AstroConcepts

Auteur(s)
• R. D. Cannon
• C. Lloyd
Résumé

Relative proper motions and photographic magnitudes and colours have been determined for stars brighter than B ~ 16 which lie within ${12}^{\prime}$ of the open cluster NGC 2420. These are used to obtain a colour–magnitude diagram consisting almost entirely of cluster members. This diagram is compared with those of other clusters, and it appears that NGC 2420 is certainly more than 109 years old. However, there are some unusual features which may indicate a chemical composition intermediate between those typical of open and globular clusters. The absolute proper motion of the cluster is small.

Langue(s) du document
Indéterminé
Année de publication
1970
Revue

Monthly Notices of the Royal Astronomical Society

Éditeur
OUP
Type de publication
journal
Type de document
research-article
Présence de XML structuré
Non
Version de PDF
1.4
Score de qualité du texte
3.129
Nom du concept
• Blue stragglers
Catégories Science-Metrix
• 1 - natural sciences ; 2 - physics & astronomy ; 3 - astronomy & astrophysics
Catégories Scopus
• 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Space and Planetary Science
• 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - Astronomy and Astrophysics
Catégories WoS
• 1 - science ; 2 - astronomy & astrophysics
Identifiant ISTEX
4B3CCFB88085C724D7908DC84AF93CB445B15D2E