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HD 11950


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Statistical analysis of the errors in visual double star observations. II - 'New-generation' observers
Data from micrometric observations of visual double stars are compiledin extensive tables and graphs and analyzed statistically, extending thestudy of Pannunzio et al. (1986) to include observations obtained after1930. Residuals are computed for the entire sample, for instrument sizeclasses, and for single observers. The effect of resolving power seen inthe old-generation observations is confirmed, and the applicability ofthe complete data set to derivation of corrective weighting coefficientsis indicated.

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Observation and Astrometry data

Constellation:ペルセウス座
Right ascension:01h58m35.48s
Declination:+48°25'58.2"
Apparent magnitude:8.975
Distance:1020.408 parsecs
Proper motion RA:7
Proper motion Dec:-8.6
B-T magnitude:9.066
V-T magnitude:8.983

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 11950
TYCHO-2 2000TYC 3284-220-1
USNO-A2.0USNO-A2 1350-01850852
HIPHIP 9226

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