WOLFRAY6 (S0): Sixth Catalog of Galactic Wolf-Rayet Stars, 1981 (19950225)
FILES:
wolfray6.s0 (data file; 159 Wolf-Rayet stars)
wolfray6.ls (position-list for locating stars)
CONTENTS: Sixth Catalog of Galactic Wolf-Rayet Stars; van der Hucht et al, 1981
DATASET: These files come in HyperSky dataset S-29, version 19950125. Availability on HyperSky CD-ROM: Vol. 2 (1995)
DESCRIPTION: This datafile contains a catalog of 159 Population I Galactic Wolf-Rayet Stars, taken from the list in the 1981 paper by van der Hucht et al (see reference below). Wolf-Rayet stars are among the very hottest stars, typically found in regions of active star formation, such as galactic OB associations (associations of hot O and B stars). The brightest member of this rare class is 1.7 magnitude Gamma-2 Velorum, identified as WR6 11 in this catalog (see identifications below). Most Wolf-Rayet catalog stars are fainter, however: only 12 are brighter than 8th magnitude, and the faintest cataloged is listed at magnitude 20.
The HyperSky file is based on the version of the catalog available through the U.S. National Space Sciences Data Center (NSSDC) as Astronomical Data Center (ADC) catalog #3085.
DATA: The HyperSky datafile contains the following data from the catalog:
POSITION: Right Ascension and Declination are based on the catalog 1950 positions, precessed to equinox 2000. Catalog positions were provided to an accuracy of 1 second in Right Ascension and 1" in declination. This accuracy is maintained in the HyperSky file.
TYPE: The first two letters of the stars spectral type, which is also provided in full in the comments (see below).
MAG: The visual magnitude as provided in the catalog.
IDENTIFICATION: The catalog number of the star, with the prefix "WR6" prepended. This prefix is added only for the HyperSky file; it is NOT used in the original catalog.
COMMENTS: The comment lines contain the following information, provided if available for each star:
* A line starting with "=", giving alternate identifications for the star. It should be noted that these identifications include other catalog abbreviations (eg, "MR"), which are not explained further in the docuentation provided for the machine-readable version of the catalog.
* A line giving the full spectral type of the star. Two spectral types are provided in cases where the star is a member of a binary system.
* A line starting with "star group:" identifying any cluster, OB association, or other star grouping with which the star is associated.
* A line starting with "nebula:" identifying any cataloged nebulosity with which the star is associated.
POSITION-LIST: The position-list wolfray6.ls, if loaded, enables you to locate a star position using either of two sublists:
* A list ordered by Right Ascension.
* A list ordered by magnitude, with the brightest stars first.
Remember that this is only a position-list; it does not actually display a star at the position you select. The star you select will appear at the position only if you have also loaded wolfray6.s0, or some other HyperSky catalog file which contains the star.
REFERENCES
K.A. van der Hucht, P.S. Conti, I. Lundstrom, and B. Stenholm (1981) Space Science Rev. 28, 227