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I/252
The USNO-A2.0 Catalogue (Monet+ 1998)
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1.
I/252/out
The Full Catalogue
(Note)
(526280881 rows)
USNO-A2.0
contains 526,280,881 sources, and is based on a re-reduction of the Precision Measuring Machine (PMM) scans from POSS-I
O
and
E
plates (>=-18°) and SRC-
J
and ESO-
R
plates (<=-20°). USNO-A2.0 was created by Dave Monet () and collaborators at
Flagstaff Station, U.S. Naval Observatory
.
The major difference between USNO-A2.0 and its previous version
USNO-A1.0
is that A1.0 used the
Guide Star Catalog
as its reference frame whereas A2.0 uses the ICRF as realized by the
USNO ACT catalog
(Urban et al. 1997). The VizieR search engine uses an
on-line compressed version
(3.6Gbytes) which was generated at CDS.
Query Setup
(
usage
)
Maximum Entries per table:
1
5
10
20
50
100
200
1000
9999
99999
999999
unlimited
Output layout:
VOTable
VOTable (bin-64)
VOPlot
XML + CSV (Astrores)
FITS (ascii) Table
KMZ/KML - Google Sky
SkyCat-Compatible
HTML Table
HTML with Checkboxes
Detailed results
Tab-Separated-Values
| -Separated-Values
; -Separated-Values
ascii text/plain
ascii table
ascii - small
ascii - tiny
ascii - with Checkboxes
ascii - small with Checkboxes
ascii - 999'filled
Output Order:
+
-
Query by Position on the Sky
(Adapt Form to use a List of targets)
Target
Name (resolved by
S
imbad
) or
Position
:
today
J2000
B1975
B1950
B1900
B1875
B1855
Galactic
Supergal.
Ecl.J2000
Position
in
Sexagesimal, or
Decimal °
Target dimension:
deg
arcmin
arcsec
Radius or
Box size
Output preferences for Position:
r
x,y
Position
Galactic
J2000
B1950
Ecl.J2000
none
Compute
Sort by
r
and
x,y
are the distance to the Target;
Position
is in the same coordinate system as
Target
.
Query by
Constraints
applied on Columns
Show
Sort
Column
Constraint
Explain
(
UCD
)
USNO-A2.0
(char)
Original designation in USNO-A2.0 catalogue
(Note)
(
meta.id;meta.main
)
(
ID_MAIN
)
RAJ2000
deg
Right ascension (ICRS) mean of blue/red plates (
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
DEJ2000
deg
Declination (ICRS) mean of blue/red plates (
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
ACTflag
(char)
[A] 'A' when star belongs to ACT (Cat.
I/246
) (
meta.code
)
(
CODE_MISC
)
Mflag
(char)
[*] '*' magnitudes are probably wrong (
meta.code
)
(
CODE_MISC
)
Bmag
mag
Magnitude from blue plate (
phot.mag;em.opt.B
)
(
PHOT_PHG_B
)
Rmag
mag
Magnitude from red plate (
phot.mag;em.opt.R
)
(
PHOT_PHG_R
)
Epoch
yr
(n)
Mean epoch of position
(Note)
(
time.epoch
)
(
TIME_EPOCH
)
ALL
cols
(n)
indicates a possible blank or NULL column
Adapt
Form
(
usage
)
Columns
with UCDs:
Allow LISTs from file:
©UDS/CNRS
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