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HD 34985


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The determination of the zero point of the wavelength scale on stellar spectrograms
A novel method for determining the zero point of the wavelength scale(lambda0) on low-spectral-resolution spectrograms obtainedwith an objective plasma is presented. The method was applied to a groupof 100 stars belonging to the B-G spectral classes. Near-UV spectrogramsof these stars were obtained by the Orion-2 space observatory.Equivalent widths were obtained for the resonance doublet of Mg II 2800A in the spectra of the stars studied.

Interesting ultraviolet star discovered by Orion-2
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Observation and Astrometry data

Constellation:ぎょしゃ座
Right ascension:05h23m54.90s
Declination:+47°57'22.2"
Apparent magnitude:9.143
Proper motion RA:0.7
Proper motion Dec:-0.4
B-T magnitude:9.331
V-T magnitude:9.159

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 34985
TYCHO-2 2000TYC 3362-1918-1
USNO-A2.0USNO-A2 1350-05735686
HIPHIP 25246
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