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TYC 4447-2634-1


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Photometry of Dwarf K and M Stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1988PASP..100..749B&db_key=AST

Dwarf K and M stars of high proper motion found in a hemispheric survey
A recently completed visual/red spectral region objective-prism surveyof more than half the sky found some 2200 dwarf K and M stars ofnegligible proper motion (Stephenson, 1986). The present paper adds the1800-odd spectroscopically identified dwarfs that did prove to havesignificant proper motions. About half of these had previous spectralclassifications of some sort, especially by Vyssotsky (1952, 1956). Forthe great majority, the present coordinates are more accurate thanprevious data. The paper includes about 50 stars with unpublishedparallaxes, likely to have parallaxes of 0.05 arcsec or more. Combiningthe present data with the first paper suggests that the number oflow-proper-motion stars in that paper was not unreasonable.

Dwarf M stars found spectrophotometrically .
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1956AJ.....61..201V&db_key=AST

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Observation and Astrometry data

Constellation:Céphée
Right ascension:20h46m21.76s
Declination:+67°57'24.1"
Apparent magnitude:10.521
Proper motion RA:1.7
Proper motion Dec:-24.7
B-T magnitude:11.728
V-T magnitude:10.621

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 4447-2634-1
USNO-A2.0USNO-A2 1575-04503068
HIPHIP 102500

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