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HD 37663


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Machine-readable version of the Parenago catalogue of stars in the area of the Orion nebula
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Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.

A photometric study of the Orion OB 1 association. III - Subgroup analyses
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1978ApJS...36..497W&db_key=AST

A photometric study of the Orion OB 1 association. I - Observational data.
A catalog of observational data is presented for stars in the region ofthe young stellar association Orion OB 1. Photoelectric observationsobtained in the uvby-beta and UBV systems are compiled along withprevious photoelectric and spectroscopic data for all these stars aswell as for several bright members of the association with availablephotometric indices. Mean weighted values are computed for thephotometric data and summarized in tables expected to be reasonablycomplete for association members earlier than spectral type A0.Membership criteria are derived, and qualitative membershipprobabilities summarized, for the 526 stars in the final program. Theanalytical procedures are discussed for association stars of B,intermediate, and AF types. Effects of the nebular environment andvarious calibrations of Balmer-line and four-color indices areconsidered for the determination of absolute magnitudes for the B-typestars.

Classificazione spettrale con prisma obiettivo di stelle del complesso Orione
Not Available

Catalogue of stars in the area of the Orion Nebula.
Not Available

A Study of the Orion Aggregate of Early-Type Stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1952ApJ...116..251S&db_key=AST

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Osservazione e dati astrometrici

Costellazione:Orione
Ascensione retta:05h39m56.79s
Declinazione:-06°46'31.0"
Magnitudine apparente:9.154
Moto proprio RA:2.2
Moto proprio Dec:0.6
B-T magnitude:9.194
V-T magnitude:9.158

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 37663
TYCHO-2 2000TYC 4779-241-1
USNO-A2.0USNO-A2 0825-01629154
HIPHIP 26659
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