Optical survey of IRAS fields in the Draco cloud region

Astronomy and Astrophysics – Astronomy

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Infrared Astronomy Satellite, Infrared Sources (Astronomy), Molecular Clouds, Astronomical Coordinates, Infrared Stars, Tables (Data)

Scientific paper

This paper reports the results of examining POSS plates in 5arcmin×5arcmin regions that surround the 56 unidentified IRAS Point Source Catalog (PSC) objects within a 36 square degree area around the inbound Draco molecular cloud at l = 90°, b = +38°. Both stellar and nonstellar POSS images are cataloged with accurate coordinates and estimated blue magnitudes. Coordinated finder charts are provided for all objects, and are illustrated with the PSC error ellipses of 95% confidence. Several galaxies and stars found inside the error-ellipse fields are probable counterparts of PSC objects that are not projected in cloud clumps. Other stellar and nonstellar POSS images are projected in or near 100 μm - only sources that may be cloud globules. Some of the 23 empty error-ellipse fields may be centered on opaque dust.

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