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G. P. Kuiper's spectral classifications of proper-motion stars
Spectral classifications are listed for over 3200 stars, mainly of largeproper motion, observed and classified by Kuiper during the years1937-1944 at the Yerkes and McDonald Observatories. While Kuiper himselfpublished many of his types, and while improved classifications are nowavailable for many of these stars, much of value remains. For many ofthe objects, no other spectral data exist.
| Micrometer measures of 401 double stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972AJ.....77..878W&db_key=AST
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Observation and Astrometry data
| Constellation: | ぼうえんきょう座 |
| Right ascension: | 20h17m44.48s |
| Declination: | -45°57'26.7" |
| Apparent magnitude: | 8.348 |
| Distance: | 158.73 parsecs |
| Proper motion RA: | 100.3 |
| Proper motion Dec: | -88.7 |
| B-T magnitude: | 9.698 |
| V-T magnitude: | 8.46 |
Catalogs and designations:
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