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I/171/acrs1 Astrographic Catalog Reference Stars (ACRS) (Corbin+ 1991)
The ACRS catalog, grouping 250052 reliable stars and 70159 stars with poor observational history (320211 rows)
  recno=27156
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ColumnValue  Explain   (UCD)
_RAJ200003 07 25.67029 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+17 52 47.8450 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195003 04 36.45871 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+17 41 17.8829 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon162.98410851 deg Galactic longitude at Epoch=J1950, proper motions taken into account (pos.galactic.lon)
_Glat-34.20934887 deg Galactic latitude at Epoch=J1950, proper motions taken into account (pos.galactic.lat)
27156recno 27156  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

PartNum1  Catalog part number: 1 for the more relaible stars, 2 for the tars with poor observational history (meta.id;meta.dataset)
ACRS 27156  (i) [1,570159] ACRS sequential number (Note)   (meta.id;meta.main)
RAB195003 04 36.458 "h:m:s" (i) Hours RA, equinox=B1950, Epoch=B1950.0 (pos.eq.ra;meta.main)
DEB1950+17 41 17.880 "d:m:s" (i) Degrees Dec, equinox, epoch B1950.0 (pos.eq.dec;meta.main)
e_RAB1950 3 ms Mean error in RA at original epoch (stat.error;pos.eq.ra)
e_DEB1950 5 10mas Mean error in Dec at original epoch (stat.error;pos.eq.dec)
pmRA -1.72 ms/yr RA proper motion, FK4 system (pos.pm;pos.eq.ra)
pmDE 6.3 mas/yr DE proper motion, FK4 system (pos.pm;pos.eq.dec)
e_pmRA 0.12 ms/yr Mean error on pmRA (stat.error;pos.pm;pos.eq.ra)
e_pmDE 1.7 mas/yr Mean error on pmDE (stat.error;pos.pm;pos.eq.dec)
EpRA1948.535 yr Original epoch of RA (epoch of mean position) (time.epoch)
EpDE1943.658 yr Original epoch of DE (epoch of mean position) (time.epoch)
o_RAB1950 22  Number of positions in RA (meta.number)
o_DEB1950 21  Number of positions in DE (meta.number)
w_RAB1950 18.0  Sum of the weights in RA (stat.weight)
w_DEB1950 14.3  Sum of the weights in DE (stat.weight)
Pmag 5.90 mag [140/1350] Photographic magnitude (phot.mag;em.opt)
SpType   Spectral type (src.spType)
BD+17 493  Bonner Durchmusterung number I/122 (meta.id)
CD   Cordoba Durchmusterung number I/114 (meta.id)
CP   Cape Photographic Durchmusterung I/108 (meta.id)
AGK3+170276  AGK3 number I/61 (meta.id)
CPC2   Second Cape Photograpic Catalog I/85 (meta.id)
ACRSJACRS J030725.66+175247.8  ACRS number, ACRS Jhhmmss.ssSddmmss.s (Note)   (meta.id)
RA200003 07 25.666 "h:m:s" Hours RA, Equinox=J2000, Epoch=J2000 (Note)   (time.epoch;pos.eq.ra)
pmRA2000 -1.71 ms/yr Centennial RA proper motion, J2000.0 (pos.pm;pos.eq.ra)
DE2000+17 52 47.870 "d:m:s" Degrees Dec, equinox, epoch J2000.0 (time.epoch;pos.eq.dec)
pmDE2000 4.0 mas/yr Centennial Dec proper motion, J2000.0 (pos.pm;pos.eq.dec)

_RA.icrs03 07 25.670 "h:m:s" (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+17 52 47.845 "d:m:s" (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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