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HD 290857


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Merged catalogue of reflection nebulae
Several catalogues of reflection nebulae are merged to create a uniformcatalogue of 913 objects. It contains revised coordinates,cross-identifications of nebulae and stars, as well as identificationswith IRAS point sources.The catalogue is only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/399/141

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.

M 78 : an active region of star formation in the dark cloud LYNDS 1630.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975ApJ...196..489S&db_key=AST

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Observation and Astrometry data

Constellation:Orion
Right ascension:05h47m05.41s
Declination:+00°38'20.6"
Apparent magnitude:10.135
Proper motion RA:1
Proper motion Dec:7.3
B-T magnitude:10.597
V-T magnitude:10.174

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 290857
TYCHO-2 2000TYC 116-853-1
USNO-A2.0USNO-A2 0900-01961602

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