THE OPEN CLUSTER NGC 3293 AND THE OB COMPLEX IN CARINA

THE OPEN CLUSTER NGC 3293 AND THE OB COMPLEX IN CARINA

Photoelectric measures in UBVRI of 46 stars in and around the open cluster NGC 3293 are presented. A distance modulus of Vo — Mv = 12.1 ± 0.15 (s.d.), corresponding to 2.6 kpc, was derived from the photometric data for 34 member stars. This is similar to distances found for other young groups in the...

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Veröffentlicht in:Publications of the Astronomical Society of the Pacific 1980-06, Vol.92 (547), p.266-274
Hauptverfasser: FEINSTEIN, ALEJANDRO, MARRACO, HUGO G.
Format: Artikel
Sprache:eng
Schlagworte:
Astronomical objects
Interstellar reddening
M supergiants
Main sequence stars
Open star clusters
Radial velocity
Stars
Stellar classification
Supergiant stars
Variable stars
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container_title Publications of the Astronomical Society of the Pacific
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creator FEINSTEIN, ALEJANDRO
MARRACO, HUGO G.
description Photoelectric measures in UBVRI of 46 stars in and around the open cluster NGC 3293 are presented. A distance modulus of Vo — Mv = 12.1 ± 0.15 (s.d.), corresponding to 2.6 kpc, was derived from the photometric data for 34 member stars. This is similar to distances found for other young groups in the Carina region. One M supergiant and one Be star are members of the cluster. The brightest stars on the main sequence are of type B1. Several stars that have evolved away from the upper main sequence have been classified as giants and supergiants. The age of the cluster is about 7 x 10⁶ years. The star HD 91824 (no. 1), spectral type O7 V((f)), is not a member of the group. The interstellar reddening is normal in front of this cluster.
doi_str_mv 10.1086/130662
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source JSTOR Archive Collection A-Z Listing; Institute of Physics Journals; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection
subjects Astronomical objects
Interstellar reddening
M supergiants
Main sequence stars
Open star clusters
Radial velocity
Stars
Stellar classification
Supergiant stars
Variable stars
title THE OPEN CLUSTER NGC 3293 AND THE OB COMPLEX IN CARINA
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