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HD 50845

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New Elements for 80 Eclipsing Binaries V. This research presents new elements for 80 eclipsing binaries found withthe help of the ASAS-3, Hipparcos and NSVS databases.
The Tokyo PMC catalog 90-93: Catalog of positions of 6649 stars observed in 1990 through 1993 with Tokyo photoelectric meridian circle The sixth annual catalog of the Tokyo Photoelectric Meridian Circle(PMC) is presented for 6649 stars which were observed at least two timesin January 1990 through March 1993. The mean positions of the starsobserved are given in the catalog at the corresponding mean epochs ofobservations of individual stars. The coordinates of the catalog arebased on the FK5 system, and referred to the equinox and equator ofJ2000.0. The mean local deviations of the observed positions from theFK5 catalog positions are constructed for the basic FK5 stars to comparewith those of the Tokyo PMC Catalog 89 and preliminary Hipparcos resultsof H30.
The IUE Spectrum of the Shell Star HD 50845 Not Available
Variations in the envelope of the shell star HD 50845 Spectrographic observations of the shell star HD 50845 made in December1984 have disclosed variations in the appearance of H-alpha and adecrease in the intensity of the strongest metastable and resonancelines of Fe I and Ca I, with respect to observations made with the sameequipment ten months earlier. The underlying star seems to be a velocityvariable F5 V object.
A New Shell Star: HD 50845 Not Available
Photoelectric Observations of the Variable Star Au-Monocerotis Abstract image available at:http://adsabs.harvard.edu/abs/1980A&AS...40..271L
AU Monocerotis: a possible rapid cyclic variation of its period. Abstract image available at:http://adsabs.harvard.edu/abs/1977A&A....55..295L
Stellar Spectra in Milky way Regions. V.A Region in Monoceros. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1956ApJS....2..271M&db_key=AST

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Osservazione e dati astrometrici

Costellazione:	Unicorno
Ascensione retta:	06^h54^m48.92^s
Declinazione:	-01Â°16'57.2"
Magnitudine apparente:	8.138
Distanza:	342.466 parsec
Moto proprio RA:	-1
Moto proprio Dec:	-3.8
B-T magnitude:	9.23
V-T magnitude:	8.229

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 50845
TYCHO-2 2000	TYC 4801-314-1
USNO-A2.0	USNO-A2 0825-03478123
HIP	HIP 33225

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