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Newcomb Astrometric Satellite

Published online by Cambridge University Press:  07 August 2017

K. J. Johnston ,
P. K. Seidelmann ,
R. D. Reasenberg ,
R. Babcock  and
J. D. Phillips
K. J. Johnston
Affiliation:
U.S. Naval Observatory Washington, D.C. 20392-5420
P. K. Seidelmann
Affiliation:
U.S. Naval Observatory Washington, D.C. 20392-5420
R. D. Reasenberg
Affiliation:
Smithsonian Astrophysical Observatory Cambridge, Massachusetts
R. Babcock
Affiliation:
Smithsonian Astrophysical Observatory Cambridge, Massachusetts
J. D. Phillips
Affiliation:
Smithsonian Astrophysical Observatory Cambridge, Massachusetts

Abstract

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Newcomb is a design concept for an astrometric optical interferometer satellite with a nominal single measurement accuracy of 100 microarcseconds. In a 30-month mission life, it will make scientifically interesting measurements of O stars, RR Lyrae and Cepheid distances, probe dark matter in our Galaxy via parallax measurements of K giants in the disk, establish a reference grid with internal consistency better than 50 microarcseconds, and lay the groundwork for the larger optical interferometers that are expected to produce a profusion of scientific results during the next century.

Type
3. Expected Developments in High Precision Astrometry
Information
Symposium - International Astronomical Union , Volume 166: Astronomical and Astrophysical Objectives of Sub-Milliarcsecond Optical Astrometry , 1995 , pp. 331 - 334
Copyright
Copyright © Kluwer 1995 

References

Reasenberg, et al, Robert, D., Babcock, et al, Robert, W., Phillips, et al, James, D., Johnston, Kenneth, J., and Simon, , Richard, S. (1993) “Newcomb, A POINTS Precursor Mission with Scientific Capacity” in Spaceborne Interferometry, Proceedings of SPIE Conference, 1947.Google Scholar
Fey, A., Russell, J. L., Ma, C., Johnston, K. J., Archinal, B.A., Carter, M.S., Holdenreid, E., and Yao, Z. (1992) Astron J. 104, 891.CrossRefGoogle Scholar