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TYC 205-1695-1


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Space Motions of Low-Mass Stars. III.
Radial velocity observations are presented for 149 stars taken from theMcCormick lists of dwarf K and M stars in a continuing program of radialvelocities of faint nearby stars. The data will serve to derive a totalstellar density of these kinds of stars in the solar neighborhood. Thesedata were obtained with the spectrometer of the Vilnius UniversityObservatory mounted on the 1.6 m Kuiper Telescope of the StewardObservatory.

Photometry of dwarf K and M stars
An observational program using UBVRI photometry is presented for 688stars from among the dwarf K and M stars already found spectroscopicallyby Vyssotsky (1958). Of these, 211 have not been observedphotometrically. These observations were obtained over a period ofseveral years at the Kitt Peak National Observatory using a GaAsphotomultiplier with an 0.9 m reflector. Based on night-to-nightvariations in the measures of individual stars, the internal errors maybe estimated to be roughly 0.01 mag for the colors and 0.015 for the Vmagnitudes. The photometric parallaxes reported for each star werecomputed in the manner discussed by Weis (1986).

Parallaxes and proper motions from the McCormick Observatory - List 46
Trigonometric parallaxes and relative proper motions are presented for26 late-type stars observed with the Leander McCormick rafractor.Eighteen stars have no previously published parallaxes. Sixteen starsare K and M dwarfs identified by Vyssotsky and his collaborators. Thelist includes three probable Hyades cluster members, two subdwarfs, andan M dwarf at a distance of about 10 pc. New BVRI photometry has beenobtained for most stars on the list.

Photoelectric observations of red dwarf stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1956AJ.....61..213M&db_key=AST

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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관측 및 측정 데이터

별자리:바다뱀자리
적경:08h25m16.91s
적위:+04°15'12.8"
가시등급:10.094
거리:46.296 파섹
적경상의 고유운동:-53.6
적위상의 고유운동:-95.9
B-T magnitude:11.615
V-T magnitude:10.22

천체목록:
일반명
TYCHO-2 2000TYC 205-1695-1
USNO-A2.0USNO-A2 0900-05953656
HIPHIP 41277

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