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HD 187138


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Meridian observations made with the Carlsberg Automatic Meridian Circle at Brorfelde (Copenhagen University Observatory) 1981-1982
The 7-inch transit circle instrument with which the present position andmagnitude catalog for 1577 stars with visual magnitudes greater than11.0 was obtained had been equipped with a photoelectric moving slitmicrometer and a minicomputer to control the entire observationalprocess. Positions are reduced relative to the FK4 system for each nightover the whole meridian rather than the usual narrow zones. Thepositions of the FK4 stars used in the least squares solution are alsogiven in the catalog.

Six-color photometry of stars. VIII. The colors of 409 stars of different spectral types
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1956ApJ...123..440S&db_key=AST

A photometric system
Not Available

Magnitudes and colors for 833 Northern and Southern stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1955AJ.....60...65E&db_key=AST

The Transfer of the North Polar Standards to the Southern Hemisphere.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1953ApJ...117...83C&db_key=AST

Special Type, Magnitude, and Color-Index Relations in the Galactic Star Cluster in Coma Berenices.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1952ApJ...116..612W&db_key=AST

On Magnitude Systems.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1952ApJ...116..272J&db_key=AST

On the Color-Magnitude Diagram of the Pleiades.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1951ApJ...114..522J&db_key=AST

A Study of the Concentration of Early-Type Stars in Cygnus.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1951ApJ...114..492R&db_key=AST

Photoelectric Studies. VIII. Positional Effect in Photomultipliers and Some Revised Magnitudes in the North Polar Sequence and Harvard Region C 12.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1951ApJ...114..141E&db_key=AST

Red and Infrared Magnitudes for 125 Stars in Ten Areas
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1951ApJ...113..324K&db_key=AST

Photoelectric Magnitudes and Colors of Stars in Selected Areas 57, 61, and 68.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1950ApJ...112..469S&db_key=AST

The Color-Magnitude Array for the Galactic Cluster NGC 2362.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1950ApJ...112..240J&db_key=AST

Photoelectric Studies. I. Color-Luminosity Array for Members of the Hyades Cluster.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1950ApJ...111...65E&db_key=AST

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Osservazione e dati astrometrici

Costellazione:Orsa Minore
Ascensione retta:18h08m11.79s
Declinazione:+88°49'22.1"
Magnitudine apparente:8.212
Distanza:182.815 parsec
Moto proprio RA:-16.6
Moto proprio Dec:6.7
B-T magnitude:9.553
V-T magnitude:8.323

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 187138
TYCHO-2 2000TYC 4660-186-1
HIPHIP 88846

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