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HD 11295


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Spectrophotometric study of the suspected UU Herculis-star HR 4912
High-dispersion blue spectrograms and BV photometry of the high-latitudeF-supergiant HR 4912 = HD 112374 have been obtained. As a result of thecurve-of-growth analysis, it is concluded that it might have theparameters of a F-supergiant with slight metal deficiency (Fe/H = -0.07). The latter depends much upon the derived temperature of HR 4912;hence, special attention is paid to this problem. The blue spectra andnew BV photometry made it possible to obtain four independent estimatesof the temperature - better than in the previous two studies of HR 4912in the UV and red regions. Despite all recent efforts in a wide spectralregion, the status and origin of HR 4912 remains as yet not established,although it seems to stand much closer to the stars of the UU Herculistype.

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Observation and Astrometry data

Constellation:うお座
Right ascension:01h51m01.02s
Declination:+04°13'14.0"
Apparent magnitude:8.366
Distance:67.476 parsecs
Proper motion RA:66.4
Proper motion Dec:-50
B-T magnitude:9.005
V-T magnitude:8.419

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 11295
TYCHO-2 2000TYC 33-647-1
USNO-A2.0USNO-A2 0900-00432813
HIPHIP 8605

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