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HD 212387


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Hipparcos astrometry for 257 stars using Tycho-2 data
We present improved Hipparcos astrometry for 257 Hipparcos stars,resolved into 342 components. For 64 of the stars no astrometry wasobtained in the Hipparcos Catalogue, while for the remaining starsadditional components have been added by this solution or the positionshave been revised considerably. We have used the published Hipparcostransit data for the new solutions, together with results from thesecond reduction of the Tycho data for defining better initial values.Based on observations made with the ESA Hipparcos astrometry satellite.Table 3 is only available in electronic form at the CDS via anonymousftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html

Absolute and relative motion of the visual double star JC 19 (IDS 22187S4157)
The relative trajectory of the optical pair JC 19 is computed on thebasis of all available observations and is represented by both thenatural and vectorial elements. The calculation of confidence intervalsfor the natural elements is discussed. An ephemeris is given for theinterval 1985 - 2000. Absolute meridian and photographic positions areused to derive the p.m. of the primary, which is then combined with therelative data to obtain the absolute motion of the secondary.

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Observation and Astrometry data

Constellation:Grue
Right ascension:22h24m40.64s
Declination:-41°26'17.8"
Apparent magnitude:8.107
Distance:71.582 parsecs
Proper motion RA:-21.8
Proper motion Dec:-18.5
B-T magnitude:8.62
V-T magnitude:8.15

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 212387
TYCHO-2 2000TYC 7999-1574-1
USNO-A2.0USNO-A2 0450-40191798
HIPHIP 110632

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