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Title:
The MSX Infrared Astometric Catalog
Authors:
Egan, Michael P.; Price, Stephan D.
Publication:
Astronomical Journal v.112, p.2862 (AJ Homepage)
Publication Date:
12/1996
Origin:
AJ
AJ/ApJ Keywords:
CATALOGS, INFRARED: STARS, ASTROMETRY
DOI:
10.1086/118227
Bibliographic Code:
1996AJ....112.2862E

Abstract

The MSX Infrared Astrometric Catalog has been constructed as a tool for improving the pointing accuracy of infrared observations. The catalog contains 177,860 astrometric stars, 61,242 which have been identified with their infrared counterparts from IRAS catalogs and the Catalog of Infrared Observations through position and color matching. Infrared flux densities are predicted for 6 wavelength bands between 4 and 22 μm. The catalog identifications are complete to within the spatial coverage of current surveys for those astrometric stars brightest in the infrared. By predicting fluxes of astrometric stars without IR identifications we are able to extend the catalog to areas of the sky which were incomplete in the IRAS catalogs. Furthermore, by retaining stars below the brightness limit of current surveys we are able to provide better spatial coverage to help point or position the next generation of infrared telescopes.

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