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On the Variability of K5-M Stars
I investigate the Hipparcos Satellite photometry of K5-M stars to seethe pattern of activity of these stars. A few stars for which furtherstudy is desirable are identified.
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We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.
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Four color and RI observations were obtained for a large sample ofG-type and K-type stars in the Bright Star Catalogue. Data are firstpresented for 110 evolved stars. Photometry of evolved young diskpopulation stars have then been calibrated for luminosity, reddening,and metallicity on the basis of results for members of the Hyades andSirius superclusters. New DDO results are given for 120 stars.
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Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1985A&AS...59...15A&db_key=AST
| A catalog of selected compact radio sources for the construction of an extragalactic radio/optical reference frame
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| List of 333 variable, microvariable or suspected variable stars detected in the Geneva photometry
A list is presented of 333 stars, excluded from the GCVS and itssupplements, whose probability of variability ranges from high tocertain. The standard deviations observed in the V magnitude togetherwith the known spectral types, however, only allow speculation as to thetype of variable in question pending supplementary observations whichreveal the individual characteristics of these stars.
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Observation and Astrometry data
| Constellation: | うみへび座 |
| Right ascension: | 11h27m58.50s |
| Declination: | -35°19'43.0" |
| Apparent magnitude: | 6.45 |
| Distance: | 387.597 parsecs |
| Proper motion RA: | 11.3 |
| Proper motion Dec: | -1 |
| B-T magnitude: | 8.558 |
| V-T magnitude: | 6.62 |
Catalogs and designations:
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