Narrow-angle astrometry with SUSI

Yitping Kok*, Michael J. Ireland, J. Gordon Robertson, Peter G. Tuthill, Benjamin A. Warrington, William J. Tango

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution


SUSI (Sydney University Stellar Interferometer) is currently being fitted with a 2nd beam combiner, MUSCA (Micro-arcsecond University of Sydney Companion Astrometry), for the purpose of narrow-angle astrometry. With an aim to achieve similar to 10 micro-arcseconds of angular resolution at its best, MUSCA allows SUSI to search for planets around bright binary stars, which are its primary targets. While the first beam combiner, PAVO (Precision Astronomical Visible Observations), is used to track stellar fringes during an observation, MUSCA will be used to measure separations of binary stars. MUSCA is a Michelson interferometer and its setup at SUSI will be described in this poster.

Original languageEnglish
Title of host publicationResolving the future of astronomy with long-baseline interferometry
Subtitle of host publicationproceedings of a conference held at New Mexico Institute of Mining and Technology, Socorro, New Mexico, USA 28-31 March 2011
EditorsMichelle J. Creech-Eakman, Joyce A. Guzik, Robert E. Stencel
Place of PublicationSan Francisco, CA
PublisherAstronomical Society of the Pacific
Number of pages3
ISBN (Electronic)9781583818596
ISBN (Print)9781583818589
Publication statusPublished - 2014
EventConference on Resolving the Future of Astronomy with Long-Baseline Interferometry - Socorro
Duration: 28 Mar 201131 Mar 2011

Publication series

NameAstronomical Society of the Pacific conference series
PublisherAstronomical Society of the Pacific


ConferenceConference on Resolving the Future of Astronomy with Long-Baseline Interferometry

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