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CCD astrometry and instrumental {DELTA}V photometry of wide visual double stars. IV. Differential measurements of northern pairs. We present relative positions and instrumental visual magnitudedifferences ({DELTA}V) of 101 northern wide double star components. Themean accuracy of the magnitude differences is 0.01 magnitudes, of theangular separation 0.04 arcseconds, and of position angle 0.13 degrees.Most of the programme pairs are targets of the HIPPARCOS mission andthey have been often observed during the last 150 years.
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| Micrometer Observations of Double Stars - Part Two Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1984AJ.....89..876M&db_key=AST
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Osservazione e dati astrometrici
Costellazione: | Ariete |
Ascensione retta: | 02h09m42.76s |
Declinazione: | +20°20'53.3" |
Magnitudine apparente: | 8.09 |
Distanza: | 444.444 parsec |
Moto proprio RA: | -7.7 |
Moto proprio Dec: | 1.3 |
B-T magnitude: | 8.574 |
V-T magnitude: | 8.13 |
Cataloghi e designazioni:
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