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HD 197344

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관련 글

GPM - compiled catalogue of absolute proper motions of stars in selected areas of sky with galaxies. Not Available
GPM1 - a catalog of absolute proper motions of stars with respect to galaxies The description of the first version of the General Compiled Catalogueof Absolute Proper Motions (GPM1) for a sample of HIPPARCOS stars,derived with respect to galaxies within the plan called Catalogue ofFaint Stars (KSZ, Deutch 1952), is presented. The principal aim of theGPM1 construction was to provide absolute proper motions of stars todetermine the rotation of the HIPPARCOS system. The GPM1 cataloguecontains 977 HIPPARCOS Input Catalogue stars with V magnitudes $5^m -11^m in 180 fields north of -25 degrees of declination. The accuracy ofthe proper motions is 8 mas/yr (milliarcseconds per year). Comparison ofproper motions of GPM1 with those of the PPM and ACRS was performed andanalyzed with respect to systematic errors caused by spurious rotationof the FK5 system. The standard errors show that the rotation may bedetermined with an accuracy better than 1 mas/yr. Catalog is onlyavailable in electronic form at the CDS via anonymous ftpcdsarc.u-strasbg.fr or ftp 130.79.128.5.
H-beta photometry of northern intermediate galactic latitude early-type stars and galactic structure away from the plane Photoelectric H-beta photometry is presented for 255 early-type stars atintermediate galactic latitudes. Absolute magnitudes and distances arederived for the more luminous stars. Those with visual magnitudes lessthan or equal to 2.5 and at distances of up to 1 kpc from the galacticplane may follow the spiral structure in the plane.
UBV photometry and MK spectral classification of northern early-type stars at intermediate galactic latitudes Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977MNRAS.180..691H&db_key=AST

관련 링크

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관측 및 측정 데이터

별자리:	케페우스자리
적경:	20^h39^m26.65^s
적위:	+65Â°08'44.4"
가시등급:	8.583
거리:	174.216 파섹
적경상의 고유운동:	18.9
적위상의 고유운동:	35.7
B-T magnitude:	8.801
V-T magnitude:	8.601

천체목록:

일반명	(Edit)
HD 1989	HD 197344
TYCHO-2 2000	TYC 4254-999-1
USNO-A2.0	USNO-A2 1500-07532977
HIP	HIP 101938

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