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HD 215156


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UBV Light Variation and Orbital Elements of W-Gruis
In each of the UBV band-passes 2440 observations define for the firsttime the photoelectric light variation of the binary system W Gru. Aconsistent set of elements is derived in the framework of Russell'sclassic and Napier's synthesis models. Absolute dimensions are derived.The system seems to be a well-detached binary consisting of two normal,not interacting, F5 IV components.

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Observation and Astrometry data

Constellation:Grus
Right ascension:22h43m58.90s
Declination:-44°06'28.9"
Apparent magnitude:9.235
Proper motion RA:28.4
Proper motion Dec:2.5
B-T magnitude:9.705
V-T magnitude:9.274

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 215156
TYCHO-2 2000TYC 8010-1522-1
USNO-A2.0USNO-A2 0450-40343741
HIPHIP 112236

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