Revised S201 Catalog of Far-ultraviolet Objects PDF Download
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Author: Thornton Page
Publisher:
ISBN:
Category : Stars
Languages : en
Pages : 232
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Author: Thornton Page
Publisher:
ISBN:
Category : Stars
Languages : en
Pages : 232
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Book Description
Author: Thornton Page
Publisher:
ISBN:
Category : Astronomical instruments
Languages : en
Pages : 176
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Book Description
A catalog of star images was compiled from images obtained by an NRL Far-Ultraviolet Camera/Spectrograph (Experiment S201) operated from 21 to 33 April 1972 on the lunar surface during the Apollo-16 mission. These images were scanned on a microdensitometer, and the output recorded on magnetic tapes. A set of seven computer programs were written to process these recorded outputs in order to compile the catalog. The catalog is divided into 11 parts, covering ten fields in the sky (the Sagittarius field being covered by two parts), and each part is headed by a constellation name and the field center coordinates. The errors in position of the detected images are less than about 3 arc-min. Correlations are given with star numbers in the Smithsonian Astrophysical Observatory catalog. Values are given of the peak density and the density volume (a product of the number of pixels in the image and the density units above background in each pixel). The text includes a discussion of the photometry, corrections thereto due to threshold and saturation effects, and its comparison with theoretical expectation, stellar model atmospheres, and a generalized far-ultraviolet interstellar extinction law. The S201 catalog is also available on a single reel of seven-track magnetic tape. (Author).
Author: Astronomical Data Center (U.S.)
Publisher:
ISBN:
Category : Astrometry
Languages : en
Pages : 280
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1064
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1250
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author: Naval Research Laboratory (U.S.)
Publisher:
ISBN:
Category : Naval research
Languages : en
Pages : 666
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 688
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 1696
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Author:
Publisher:
ISBN:
Category : Naval research
Languages : en
Pages : 256
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Author: Astronomical Data Center (U.S.)
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 500
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