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HD 97210


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A survey for rapid variability among early main-sequence A stars
A survey of nonpeculiar early (A0-A5) main-sequence A stars for rapid,low-amplitude variability is presented. The survey is also anindependent test of the main-sequence mass-loss theory proposed byWillson et al. (1986). All observations were gathered with theUniversity of Wisconsin Two-Star Photometer. Several period-searchingmethods are used to analyze time series of differential-photometricdata. This instrument coupled with a computerized high-speed datacollection system was used with small telescopes at Pine BluffObservatory and Table Mountain Observatory. Several period-searchmethods are used to analyze time series of differential-photometricdata. This instrument and data-reduction technique allow millimagnitudelight variations to be detected. The survey also discovered severallow-amplitude Delta Sct stars, all of which are in or blueward of therecognized instability strip.

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Observation and Astrometry data

Constellation:おおぐま座
Right ascension:11h12m03.86s
Declination:+55°10'10.5"
Apparent magnitude:8.344
Distance:96.525 parsecs
Proper motion RA:-69.7
Proper motion Dec:15.4
B-T magnitude:8.957
V-T magnitude:8.395

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 97210
TYCHO-2 2000TYC 3827-404-1
USNO-A2.0USNO-A2 1425-07622334
HIPHIP 54709

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