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TYC 855-898-1


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A search for variability in the hot hydrogen-deficient star BD + 10 deg 2179
The discovery of pulsation in the hot, extremely hydrogen-deficient starBD + 13 deg 3224 has prompted a search for this phenomenon in similarstars. In this paper, spectroscopic and photometric observations of BD +10 deg 2179 made during 1979-82 are presented. No significant variationsare found and a previously reported period in the range 0.162-0.164 dayis not seen in any of the data sequences.

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Observation and Astrometry data

Constellation:しし座
Right ascension:11h16m17.10s
Declination:+09°15'09.2"
Apparent magnitude:9.766
Proper motion RA:4.6
Proper motion Dec:5
B-T magnitude:10.868
V-T magnitude:9.857

Catalogs and designations:
Proper Names
TYCHO-2 2000TYC 855-898-1
USNO-A2.0USNO-A2 0975-06687881
HIPHIP 55058

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