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The 6 columns in color are computed by VizieR, and are not part of the original data.

Note: Detailed information can be found in intro.tex (see also http://aries.usno.navy.mil/ad/ac.html) Direct links to Hipparcos and Tycho observations are provided from the relevant columns.

I/247/ac2000
Post annotation
The AC2000 Catalogue (Urban+ 1997)

full AC J2000 catalog, split here into 14 files. (4621836 rows) (Note)
1247
Full

_RAJ2000
"h:m:s"
_DEJ2000
"d:m:s"
_RAB1950
"h:m:s"
_DEB1950
"d:m:s"
_Glon
deg
_Glat
deg
RA(ICRS)
"h:m:s"
DE(ICRS)
"d:m:s"
Bmag
mag
Epoch
yr
e_RAs
(...)
e_DEs
arcsec
AC2000

TYC

ACRS

Vflag

105 17 17.66700+53 35 11.650005 13 15.17745+53 31 57.4208156.36551829 +8.9742899805 17 17.667+53 35 11.6510.801899.070 0.124 0.226 1587052373500068101    

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