New Variables in the Sloan Digital Sky Survey Calibration Fields

The U.S. Naval Observatory 0.2 m Flagstaff Astrometric Scanning Transit Telescope was used to obtain astrometric information in 16 equatorial fields in support of the Sloan Digital Sky Survey. Each field is approximately 7.6 3.2 deg in size and was scanned about 10 times with overlapping CCD strip s...

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Bibliographic Details
Published inThe Astronomical journal Vol. 115; no. 1; pp. 296 - 302
Main Authors Henden, Arne A, Stone, Ronald C
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.01.1998
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Summary:The U.S. Naval Observatory 0.2 m Flagstaff Astrometric Scanning Transit Telescope was used to obtain astrometric information in 16 equatorial fields in support of the Sloan Digital Sky Survey. Each field is approximately 7.6 3.2 deg in size and was scanned about 10 times with overlapping CCD strip scans; star positions accurate to +/- 50 mas in each coordinate and magnitudes good to 0.011 mag were determined. As an ancillary project, this database was searched for new variables, and the results of that search are presented here. Approximately 1500 new variables have been discovered, and accurate coordinates for about 100 previously identified variables and suspected variables are given. (Author)
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1538-3881
0004-6256
1538-3881
DOI:10.1086/300174