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HD 220820


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Spectroscopic binary orbits from photoelectric radial velocities. Paper 175: BD+48 1048, HR 1736, HR 3416, and HD 199378/9
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The nature of HD 220820
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Spectroscopic binary orbits from photoelectric radial velocities Paper 122: HD 220820
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Objective-prism discoveries in the northern sky - II.
Five tables list the observed characteristics of 244 northern hemispherestars recorded in 100 108 A/mm dispersion plates at H-gamma wavelengths.The 5 x 5 deg fields contained a number of suspected weak-metal objects.Listings are divided into peculiar A stars, metallic line and deltaDelphini stars, high luminosity objects, Ca II emission stars of the Gand K type, and composite spectra.

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Observation and Astrometry data

Constellation:Ανδρομέδα
Right ascension:23h26m35.76s
Declination:+47°18'02.6"
Apparent magnitude:8.172
Distance:135.501 parsecs
Proper motion RA:19.3
Proper motion Dec:6.4
B-T magnitude:8.51
V-T magnitude:8.2

Catalogs and designations:
Proper Names
HD 1989HD 220820
TYCHO-2 2000TYC 3641-1317-1
USNO-A2.0USNO-A2 1350-18279432
HIPHIP 115711
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