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HD 4612


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The MAIA candidate star HD 208727
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Empirical curves giving the dependence of the equivalent widths of thedoublet 2800 Mg II and the line 2852 Mg I on the spectral class havebeen plotted. Some features of the behavior of these lines in thespectra of stars of the spectral classes A-K have been analyzed. Thelines 2795 Mg II and 2852 Mg I have been used to determine the meanelectron concentration ne(Mg) in the atmospheres of 87 stars of thespectral classes B8-K4.

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Observation and Astrometry data

Constellation:カシオペヤ座
Right ascension:00h49m16.13s
Declination:+68°28'02.1"
Apparent magnitude:8.123
Distance:671.141 parsecs
Proper motion RA:-7.7
Proper motion Dec:-2.5
B-T magnitude:8.472
V-T magnitude:8.152

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 4612
TYCHO-2 2000TYC 4296-520-1
USNO-A2.0USNO-A2 1575-00493718
HIPHIP 3839

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