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The potential for astrometry in the infraredInfrared interferometry promises to be a useful astrometric technique. Preliminary measurements of the star alpha Orionis made with a heterodyne interferometer exhibit phase coherence over a period of at least 1000 seconds. The measurements were equivalent to a positional determination of 60 milliarcsecond accuracy every 5 seconds of integration.
Document ID
19780023074
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Storey, J. W. V. (California Univ. Berkeley, CA, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1978
Subject Category
Astronomy
Report/Patent Number
NASA-CR-157400
Report Number: NASA-CR-157400
Accession Number
78N31017
Funding Number(s)
CONTRACT_GRANT: NGL-05-003-272
CONTRACT_GRANT: NSF AST-77-12256
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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