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HD 192803


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Flux Distributions for 59 Stars in Cygnus
Absolute flux distributions are given for 59 Cygnus stars in thespectral range of 320--720 nm with a step of 5 nm. Their rms errors areon the average 2--4%. The synthetic color indices calculated for theflux distributions are compared with the observed color indices in threephotometric systems.

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.

The Cyg X region VIII : maps of calibrated surface brightness of (H alf + N II).
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977A&AS...29..209D&db_key=AST

The spectral classification of some stars in the GAM CYG neighbourhood.
Not Available

The spectra, magnitudes and colours of O-A type stars in an area of the Milky Way, with the Center alpha = 20h16m, delta = +42 D 30'.
Not Available

The visual magnitudes of double stars.
Not Available

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Osservazione e dati astrometrici

Costellazione:Cigno
Ascensione retta:20h15m08.10s
Declinazione:+41°17'55.4"
Magnitudine apparente:7.896
Distanza:709.22 parsec
Moto proprio RA:0.3
Moto proprio Dec:-2.2
B-T magnitude:7.91
V-T magnitude:7.898

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 192803
TYCHO-2 2000TYC 3159-995-1
USNO-A2.0USNO-A2 1275-13713144
HIPHIP 99813
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