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- W122812039 abstract "From spectroscopic observations Bessell and Eggen (1972) (hereafter called BE) have detected that HR 5999 (erroneously named HR 6000 by BE) is a shell star of spectral type A7 III-IV with hydrogen lines in emission. Photometric observations show subsequently that HR 5999 varies in brightness up to about 1 mag semiregularly with a period of about 1 month. Eggen (1975) believes that HR 5999 forms a pre-main sequence object. With HR 6000, the star HR 5999 forms a visual double star system named Δ199; HR 5999 is the southern component. The angular separation is about 45”. BE show that these stars have a common proper motion, and are, therefore, believed to form a physical pair." @default.
- W122812039 created "2016-06-24" @default.
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- W122812039 date "1977-01-01" @default.
- W122812039 modified "2023-09-27" @default.
- W122812039 title "The Variable Shell Star HR 5999" @default.
- W122812039 cites W2034016864 @default.
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- W122812039 doi "https://doi.org/10.1017/s0252921100069281" @default.
- W122812039 hasPublicationYear "1977" @default.
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