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HD 192802


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Revised Period and First Epoch of V1584 Cyg
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Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm

V, R-magnitudes for comparison stars of nine carbon stars in the Cygnus field.
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Spectral types for early-type stars observed by SKYLAB
MK spectral types are presented for 246 early-type stars observed withthe S-019 ultraviolet stellar astronomy experiment on Skylab. K-linetypes are also given where applicable, and various peculiar stars areidentified. The peculiar stars include five silicon stars, a shell star,a helium-rich star, a silicon-strontium star, a chromium-europium star,and two marginal metallic-line stars.

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Dades d'Observació i Astrometria

Constel·lació:Cygnus
Ascensió Recta:20h14m45.57s
Declinació:+47°26'26.2"
Magnitud Aparent:7.258
Distancia:295.858 parsecs
Moviment propi RA:7.6
Moviment propi Dec:7.4
B-T magnitude:7.168
V-T magnitude:7.251

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 192802
TYCHO-2 2000TYC 3563-2158-1
USNO-A2.0USNO-A2 1350-11929582
HIPHIP 99785

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