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HD 46198


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Minimum von OW Geminorum zum Jahreswechsel 2001/02.
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The New Primary Minimum of OW Gem
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OW Gem: the 1991 Primary Minimum
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Radial-velocity measurements. V - Ground support of the HIPPARCOS satellite observation program
The paper presents data on 1070 radial velocity measurements of starsdistributed in 39 fields measuring 4 deg x 4 deg. The PPO series ofFehrenbach et al. (1987) and Duflot et al. (1990) is continued using theFehrenbach objective prism method.

Photoelectric Photometry of OW Geminorum at Phase 0.5
Differential V photometry of the 3.45-year eclipsing binary OW Gem nearphase 0.5 shows no indication of a secondary minimum. This resultsupports the earlier conclusion that OW Gem is a highly eccentric binarysystem with secondary minimum occuring at phase 0.23.

A Possible Secondary Minimum of the Long Period Eclipsing Binary OW Gem (NSV 3005)
Photoelectric photometry of the 1258-day eclipsing binary OW Gem = NSV3005 during the 1988-89 season found the star constant at maximum exceptfor the interval JD 2447531-540, when it was almost 0.1 magnitudefainter. If the observed event was the secondary eclipse, the unseencompanion is a large cool star, probably a late-G to early-M giant, andthe orbit of the binary system is highly eccentric with secondaryminimum occurring at phase 0.23 of the photometric period.

NSV 3005: a Probable Long-Period Eclipsing Binary
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Osservazione e dati astrometrici

Costellazione:Gemelli
Ascensione retta:06h32m41.46s
Declinazione:+17°01'42.8"
Magnitudine apparente:7.98
Moto proprio RA:-1.6
Moto proprio Dec:-4.5
B-T magnitude:8.44
V-T magnitude:8.018

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 46198
TYCHO-2 2000TYC 1333-1277-1
USNO-A2.0USNO-A2 1050-03802541
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