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I/172
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I/172
..irs
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All columns
Compute
Distance ρ
Position angle θ
Distance (x,y)
Galactic
J2000
B1950
Ecl. J2000
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Position
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Simple Target
List Of Targets
Fast Xmatch with large catalogs or Simbad
Target
Name (resolved by
Sesame
) or
Position
:
J2000
B1975
B1950
B1900
B1875
B1855
Galactic
Supergal.
Ecl.J2000
Target dimension:
deg
arcmin
arcsec
Radius
Box size
I/172
34790
International Reference Stars (IRS) (Corbin 1991)
ReadMe+ftp
Similar Catalogs
Post annotation
1.
I/172/irs
International Reference Stars (IRS), parts 1 (more reliable) and 2 (less reliable)
(36027 rows)
Simple Constraint
List Of Constraints
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Constraints
applied on Columns
(
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+
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)
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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
)
p
[1,2] Catalog Part number: 1=more reliable, 2=stars with poor observational history
(
meta.id;meta.main
)
(
ID_NUMBER
)
IRS
(i)
[1/76865] IRS sequential number
(Note)
(
meta.record
)
(
ID_MAIN
)
RAB1950
"h:m:s"
(i)
Hours RA, equinox=B1950, Epoch=B1950.0
(
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
e_RAB1950
ms
(n)
Mean error in RA at original epoch
(
stat.error;pos.eq.ra
)
(
ERROR
)
w_RAB1950
Sum of the weights in RA
(
stat.weight
)
(
WEIGHT
)
DEB1950
"d:m:s"
(i)
Degrees Dec, equinox, epoch B1950.0
(
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
e_DEB1950
10mas
(n)
Mean error in Dec at original epoch
(
stat.error;pos.eq.dec
)
(
ERROR
)
w_DEB1950
Sum of the weights in DE
(
stat.weight
)
(
WEIGHT
)
pmRA
ms/yr
RA proper motion, FK4 system
(
pos.pm;pos.eq.ra
)
(
POS_EQ_PMRA
)
e_pmRA
ms/yr
(n)
Mean error on pmRA
(
stat.error;pos.pm;pos.eq.ra
)
(
ERROR
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
pmDE
mas/yr
DE proper motion, FK4 system
(
pos.pm;pos.eq.dec
)
(
POS_EQ_PMDEC
)
e_pmDE
mas/yr
(n)
Mean error on pmDE
(
stat.error;pos.pm;pos.eq.dec
)
(
ERROR
)
EpRA
yr
Original epoch of RA (epoch of mean position)
(
time.epoch
)
(
TIME_EPOCH
)
EpDE
yr
Original epoch of DE (epoch of mean position)
(
time.epoch
)
(
TIME_EPOCH
)
o_RAB1950
Number of positions in RA
(
meta.number
)
(
NUMBER
)
o_DEB1950
Number of positions in DE
(
meta.number
)
(
NUMBER
)
Pmag
mag
[520/1000] Photographic magnitude
(
phot.mag;em.opt
)
(
PHOT_PHG_MAG
)
SpT
(char)
Spectral type
(
src.spType
)
(
SPECT_TYPE_GENERAL
)
BD
(char)
Bonner Durchmusterung number
I/122
(
meta.id
)
(
ID_ALTERNATIVE
)
CD
(char)
Cordoba Durchmusterung number
I/114
(
meta.id
)
(
ID_ALTERNATIVE
)
CP
(char)
Cape Photographic Durchmusterung
I/108
(
meta.id
)
(
ID_ALTERNATIVE
)
AGK3
(char)
AGK3 number
I/61
(
meta.id
)
(
ID_ALTERNATIVE
)
CPC2
(char)
Second Cape Photograpic Catalog
I/85
(
meta.id
)
(
ID_ALTERNATIVE
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
IRSJ
(char)
IRS number, IRS Jhhmmss.ssSddmmss.s
(Note)
(
meta.id
)
(
ID_ALTERNATIVE
)
RA2000
"h:m:s"
Hours RA, Equinox=J2000, Epoch=J2000
(Note)
(
pos.eq.ra
)
(
POS_EQ_RA_OTHER
)
pmRA2000
ms/yr
Centennial RA proper motion, J2000.0
(
pos.pm;pos.eq.ra
)
(
POS_EQ_PMRA
)
EpRA-J2000
yr
Original epoch - J2000.0 in RA
(
time.epoch;pos.eq.ra
)
(
TIME_EPOCH
)
DE2000
"d:m:s"
Degrees Dec, equinox, epoch J2000.0
(
pos.eq.dec
)
(
POS_EQ_DEC_OTHER
)
pmDE2000
mas/yr
Centennial Dec proper motion, J2000.0
(
pos.pm;pos.eq.dec
)
(
POS_EQ_PMDEC
)
EpDE-J2000
yr
Original epoch - J2000.0 in DE
(
time.epoch;pos.eq.dec
)
(
TIME_EPOCH
)
_RA.icrs
"h:m:s"
(n)
(i)
Right ascension (ICRS) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data)
(
pos.eq.ra
)
(
POS_EQ_RA_OTHER
)
_DE.icrs
"d:m:s"
(n)
(i)
Declination (ICRS) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data)
(
pos.eq.dec
)
(
POS_EQ_DEC_OTHER
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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