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HD 81990


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VBLUW-photometry of stars in small fields around 13 planetary nebulae
Observations of stars in small fields around 13 planetary nebulae, madeusing the Walraven five-channel VBLUW photometer, are presented anddescribed. The fields are found to have a radius of about 0.3 deg. Thefinding charts for the measured stars are given. It is shown that moststars are brighter than mV of about 14 mag and that the photometry hasan accuracy of better than 1 percent, except for stars that are observedwith short test-integrations and for stars fainter than mV of about 14mag. The photometric data for all stars are presented, together with alist of identifications and spectral types.

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Observation and Astrometry data

Constellation:りゅうこつ座
Right ascension:09h26m47.05s
Declination:-59°34'43.6"
Apparent magnitude:6.506
Distance:162.866 parsecs
Proper motion RA:-10.9
Proper motion Dec:10.4
B-T magnitude:6.395
V-T magnitude:6.497

Catalogs and designations:
Proper Names
HD 1989HD 81990
TYCHO-2 2000TYC 8596-2248-1
USNO-A2.0USNO-A2 0300-06957789
HIPHIP 46333

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