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HD 285315


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The Henry Draper Extension Charts: A catalogue of accurate positions, proper motions, magnitudes and spectral types of 86933 stars
The Henry Draper Extension Charts (HDEC), published in the form offinding charts, provide spectral classification for some 87000 starsmostly between 10th and 11th magnitude. This data, being highlyvaluable, as yet was practically unusable for modern computer-basedastronomy. An earlier pilot project (Roeser et al. 1991) demonstrated apossibility to convert this into a star catalogue, using measurements ofcartesian coordinates of stars on the charts and positions of theAstrographic Catalogue (AC) for subsequent identification. We presenthere a final HDEC catalogue comprising accurate positions, propermotions, magnitudes and spectral classes for 86933 stars of the HenryDraper Extension Charts.

Occultations of stars by asteroids in 1995 and 1996
Predictions, based on a computerized comparison of asteroid ephemerideswith the catalog positions of 567,500 stars, are given for 155occultations of stars by asteroids in 1995 and 1996. On average, thepredictions are expected to be more accurate than in earlier searchesbecause of the use of more modern star catalogs. A number of veryfavorable occultations, visible in North America and elsewhere, arediscussed.

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Observation and Astrometry data

Constellation:おうし座
Right ascension:04h01m01.51s
Declination:+16°31'16.2"
Apparent magnitude:9.944
Proper motion RA:5.9
Proper motion Dec:-36
B-T magnitude:10.689
V-T magnitude:10.006

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 285315
TYCHO-2 2000TYC 1250-348-1
USNO-A2.0USNO-A2 1050-01107706
HIPHIP 18754

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