NGC 2423 and the red giants of the Hyades supercluster.
Abstract
An extensive set of photometric data for members of the cluster NGC 2423 is examined, and the results are compared with those for red giant members of the Hyades supercluster. Intermediate band and RI or H-beta observations for 34 stars of the cluster are listed, and photometric parameters for A and F stars in the cluster are shown. Parameters are also depicted for red giants in the Hyades supercluster, red giants of Hyades abundance, and M type variables in the Hyades supercluster. The intrinsic (b-y), M(1) and (R-I),(b-y) relations for normal giants with Hyades metal abundance are presented. NGC 2423 is shown to be very similar to the Hyades with red giants that match the luminosity and temperature distribution of those in the Hyades. The red giants of the Hyades which are within about 200 pc of the sun are found to have parallel (U,V) motions with the main sequence stars of the Hyades nuclear cluster.
- Publication:
-
The Astronomical Journal
- Pub Date:
- February 1983
- DOI:
- 10.1086/113305
- Bibcode:
- 1983AJ.....88..190E
- Keywords:
-
- Red Giant Stars;
- Star Clusters;
- Stellar Spectrophotometry;
- A Stars;
- Abundance;
- F Stars;
- H Beta Line;
- M Stars;
- Main Sequence Stars;
- Stellar Luminosity;
- Stellar Motions;
- Stellar Spectra;
- Stellar Temperature;
- Astronomy