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Copernicus spectra and infrared photometry of 42 OrionisThe Orion sword star 42 Ori is embedded in a nebula north of and separated from the Orion nebula. The B1 V star is probably normal. Other members of the multiple remain poorly defined, and the nebula may exhibit some peculiarities that may depend on them. Copernicus ultraviolet spectra of the star are described here, especially in the form of tables of wavelength identifications. The properties of the interstellar material in the line of sight are also discussed. Infrared photometry is presented which suggests that the ratio of total to selective extinction ranges from 3 to 3.5 for the interstellar matter in the direction of 42 Ori. The IR photometry provides no evidence for companion stellar or circumstellar components.
Document ID
19770051056
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Johnson, H. M.
(Princeton Univ. Observatory NJ, United States)
Snow, T. P., Jr.
(Princeton University New Observatory, Princeton, N.J., United States)
Gehrz, R. D.
(Princeton Univ. Observatory NJ, United States)
Hackwell, J. A.
(Princeton Univ. Observatory NJ, United States)
Date Acquired
August 9, 2013
Publication Date
May 1, 1977
Publication Information
Publication: Astronomical Society of the Pacific
Subject Category
Astrophysics
Accession Number
77A33908
Funding Number(s)
CONTRACT_GRANT: NAS5-1810
CONTRACT_GRANT: NAS5-23486
Distribution Limits
Public
Copyright
Other

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