NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Due to the lapse in federal government funding, NASA is not updating this website. We sincerely regret this inconvenience.

Back to Results
An Assessment of Ground-Based Techniques for Detecting Other Planetary Systems. Volume 2: Position papersThe capabilities of several astronomical interferomenter system concepts are assessed and the effects of the Earth's atmosphere on astrometric precision are examined in detail. Included is an examination of the use of small aperture interferometry to detect planets in binary star systems. It is estimated that, for differential astrometric observation, an amplitude interferometer having two separate telescopes should permit observations of stars as faint as 14th magnitude and a positional accuracy of 0.00005 arc-sec. Instrumental, atmospheric, and photon noise errors that apply to interferometric observation are examined. It is suggested that the effects of atmospheric turbulence may be eliminated with the use of two color refractometer systems. Several sites for future telescopes dedicated to the search for planetary systems are identified.
Document ID
19800016731
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Black, D. C.
(NASA Ames Research Center Moffett Field, CA, United States)
Brunk, W. E.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 4, 2013
Publication Date
March 1, 1980
Subject Category
Astronomy
Report/Patent Number
A-8114
NASA-CP-2124-VOL-2
Report Number: A-8114
Report Number: NASA-CP-2124-VOL-2
Accession Number
80N25224
Funding Number(s)
PROJECT: RTOP 195-41-68-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available