Hostname: page-component-76fb5796d-vfjqv Total loading time: 0 Render date: 2024-04-25T20:26:09.309Z Has data issue: false hasContentIssue false

A New Objective for the Allegheny Observatory 30-Inch Refractor

Published online by Cambridge University Press:  04 August 2017

George D. Gatewood
Affiliation:
University of Pittsburgh, Allegheny Observatory, Observatory Station, Pittsburgh, Pennsylvania 15214
Joost Kiewiet de Jonge
Affiliation:
University of Pittsburgh, Allegheny Observatory, Observatory Station, Pittsburgh, Pennsylvania 15214
John Stein
Affiliation:
University of Pittsburgh, Allegheny Observatory, Observatory Station, Pittsburgh, Pennsylvania 15214
Charles DiFatta
Affiliation:
University of Pittsburgh, Allegheny Observatory, Observatory Station, Pittsburgh, Pennsylvania 15214

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

As a follow-up to the development of astrometric detectors of sufficient accuracy to detect extrasolar planetary systems, the Allegheny Observatory is modernizing their 30-inch Thaw Refractor. Changes include a new objective lens and the transition of the observational bandpass from blue light to red. The new system will have sufficient accuracy to detect jovian planets orbiting any of several dozen of the Sun's nearest stellar neighbors.

Type
Section II. The Search for Other Planetary Systems
Copyright
Copyright © Reidel 1985 

References

Black, D. C. (1980). “An Assessment of Ground-Based Techniques for Detecting Other Planetary Systems”, NASA Conference Publication 2124.Google Scholar
Gatewood, G. (1983). United States Patent # 4,397,559.Google Scholar
Gatewood, G., Breakiron, L.A., Goebel, R., Kipp, S., Russell, J.L., and Stein, J.W. (1980). “On the astrometric detection of neighboring planetary systems II”, Icarus, 39, 205.Google Scholar
Gatewood, G., Stein, J., DiFatta, C., and Kiewiet de Jonge, J. (1984). “Three Astrometric Systems”, Proceedings of IAU Symposium 109 (editor Eichhorn, H. K.) (in press).Google Scholar
Greenstein, J. (1976). “Minutes of the Second Workshop on Extrasolar Planetary Detection” NASA-Ames Research Center.Google Scholar
Kamper, K. (1972). “The Thaw Photographic Refractor”, Ph. D. Thesis, University of Pittsburgh.Google Scholar
Schlesinger, F. (1936). “Parallaxes of 851 stars”, Transactions of the Astronomical Observatory of the Yale University, 8, Introduction.Google Scholar