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I/246
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I/246
..act
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Distance ρ
Position angle θ
Distance (x,y)
Galactic
J2000
B1950
Ecl. J2000
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Target
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) or
Position
:
J2000
B1975
B1950
B1900
B1875
B1855
Galactic
Supergal.
Ecl.J2000
Target dimension:
deg
arcmin
arcsec
Radius
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I/246
396946
The ACT Reference Catalog (Urban+ 1997)
ReadMe+ftp
Similar Catalogs
Post annotation
1.
I/246/act
Full ACT catalog, originally split into 48 files, each 30min wide
(Note)
(988758 rows)
Direct links to the Hipparcos and Tycho data (catalog
I/239
) are provided when relevant
Simple Constraint
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Constraints
applied on Columns
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Column
Constraint
Explain
(
UCD
)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
(
meta.record
)
(
RECORD
)
RA(ICRS)
"h:m:s"
(i)
Right Ascension ICRS, Epoch=J2000.0 (hours)
(
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
DE(ICRS)
"d:m:s"
(i)
Declination ICRS, Epoch=J2000.0 (sign)
(
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
pmRA
s/yr
Proper Motion in RA, (sec of time/yr)
(
pos.pm;pos.eq.ra
)
(
POS_EQ_PMRA
)
pmDE
arcsec/yr
Proper Motion in Dec, arcsec/yr)
(
pos.pm;pos.eq.dec
)
(
POS_EQ_PMDEC
)
e_RAs
mas
(n)
Stand. dev. of RA at Epoch 1991.25 from Tycho (T14)
(
stat.error
)
(
ERROR
)
e_DEs
mas
(n)
Stand. dev. of Dec at Epoch 1991.25 from Tycho (T15)
(
stat.error
)
(
ERROR
)
e_pmRA
mas/yr
(n)
Stand. dev. of Proper motion (RA),
(
stat.error
)
(
ERROR
)
e_pmDE
mas/yr
(n)
Stand. dev. of Proper motion (DE),
(
stat.error
)
(
ERROR
)
BTmag
mag
(n)
Blue magnitude from Tycho (T32)
(
phot.mag;em.opt.B
)
(
PHOT_TYCHO_B
)
VTmag
mag
(n)
Visual magnitude from Tycho (T34)
(
phot.mag;em.opt.V
)
(
PHOT_TYCHO_V
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
B-V
mag
(n)
Johnson B-V from Tycho (T37)
(
phot.color;em.opt.B;em.opt.V
)
(
PHOT_JHN_B-V
)
flag1
(char)
[X] Astrometric Quality flag (T10)
(Note)
(
meta.note
)
(
REMARKS
)
flag2
(char)
[1-8] Quality flag (T40)
(Note)
(
meta.note
)
(
REMARKS
)
flag3
(char)
[GN] Known variability flag (T47)
(Note)
(
meta.code;src.var
)
(
CODE_VARIAB
)
flag4
(char)
[UVW] Variability from Tycho (T48)
(Note)
(
meta.code;src.var
)
(
CODE_VARIAB
)
flag5
(char)
[YZ] Duplicity from Tycho (T49)
(Note)
(
meta.note
)
(
REMARKS
)
TYC
(char)
(i)
Tycho ID, embedded zeros for blanks
(
meta.id;meta.main
)
(
ID_MAIN
)
AC2000
AC 2000 Number
(
meta.id
)
(
ID_ALTERNATIVE
)
BD
(char)
BD identifier (T54)
(
meta.id
)
(
ID_ALTERNATIVE
)
CD
(char)
CD identifier (T55)
(
meta.id
)
(
ID_ALTERNATIVE
)
CPD
(char)
CPD identifier (T56)
(
meta.id
)
(
ID_ALTERNATIVE
)
HD
(n)
Henry Draper Number (T53)
(
meta.id
)
(
ID_ALTERNATIVE
)
HIP
(n)
(i)
Hipparcos Number (T31)
(
meta.id
)
(
ID_ALTERNATIVE
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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