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HD 194907

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관련 글

Two-colour photometry for 9473 components of close Hipparcos double and multiple stars Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.
Mesures de vitesses radiales. VIII. Accompagnement AU sol DU programme d'observation DU satellite HIPPARCOS We publish 1879 radial velocities of stars distributed in 105 fields of4^{\circ} \times 4^{\circ}. We continue the PPO series \cite[(Fehrenbachet al. 1987;]{Feh87} \cite[Duflot et al. 1990, 1992 and 1995),]{Du90}using the Fehrenbach objective prism method. Table 1 only available inelectronic form at CDS via to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html
Visual multiples. VIII - 1000 MK types A total of 1000 new classifications are given for stars brighter than B= 8.0 mag in the Aitken double star catalog. The classificationssupplement 865 classifications obtained in 1981 and 1984. Among thenewly discovered stars are 12 new Ap stars, eight Lambda Bootis stars,one Ba II star, and 60 Am stars. A detailed list of the newclassifications is given.
Mesures d'etoiles doubles faites AU 38cm de l'Observatoire de Paris. Not Available
Mikrometermessungen von Doppelsternen. III Not Available
Measures of 241 double stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1960AJ.....65..156W&db_key=AST
Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice Not Available
Micrometer Measures of Double Stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1959ApJS....4...45V&db_key=AST

관련 링크

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관측 및 측정 데이터

별자리:	고니자리
적경:	20^h25^m40.70^s
적위:	+55Â°08'20.1"
가시등급:	8.279
거리:	371.747 파섹
적경상의 고유운동:	4.4
적위상의 고유운동:	2.6
B-T magnitude:	8.335
V-T magnitude:	8.284

천체목록:

일반명	(Edit)
HD 1989	HD 194907
TYCHO-2 2000	TYC 3941-1889-1
USNO-A2.0	USNO-A2 1425-10691972
HIP	HIP 100755

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