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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=218611
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ColumnValue  Explain   (UCD)
_RAJ200020 53 18.59948 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+45 10 53.7862 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195020 51 33.65144 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+44 59 29.3629 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon085.52014146 deg Galactic longitude at Epoch=J1950, proper motions taken into account (pos.galactic.lon)
_Glat +0.30755335 deg Galactic latitude at Epoch=J1950, proper motions taken into account (pos.galactic.lat)
218611recno 218611  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)
ACRS218611  (i) [1,570159] ACRS sequential number (Note)   (meta.id;meta.main)
RAB195020 51 33.651 "h:m:s" (i) Hours RA, equinox=B1950, Epoch=B1950.0 (pos.eq.ra;meta.main)
DEB1950+44 59 29.360 "d:m:s" (i) Degrees Dec, equinox, epoch B1950.0 (pos.eq.dec;meta.main)
e_RAB1950 6 ms Mean error in RA at original epoch (stat.error;pos.eq.ra)
e_DEB1950 11 10mas Mean error in Dec at original epoch (stat.error;pos.eq.dec)
pmRA 1.41 ms/yr RA proper motion, FK4 system (pos.pm;pos.eq.ra)
pmDE -5.0 mas/yr DE proper motion, FK4 system (pos.pm;pos.eq.dec)
e_pmRA 0.25 ms/yr Mean error on pmRA (stat.error;pos.pm;pos.eq.ra)
e_pmDE 4.5 mas/yr Mean error on pmDE (stat.error;pos.pm;pos.eq.dec)
EpRA1942.205 yr Original epoch of RA (epoch of mean position) (time.epoch)
EpDE1936.713 yr Original epoch of DE (epoch of mean position) (time.epoch)
o_RAB1950 7  Number of positions in RA (meta.number)
o_DEB1950 7  Number of positions in DE (meta.number)
w_RAB1950 5.3  Sum of the weights in RA (stat.weight)
w_DEB1950 4.6  Sum of the weights in DE (stat.weight)
Pmag 6.60 mag [140/1350] Photographic magnitude (phot.mag;em.opt)
SpType   Spectral type (src.spType)
BD+44 3617  Bonner Durchmusterung number I/122 (meta.id)
CD   Cordoba Durchmusterung number I/114 (meta.id)
CP   Cape Photographic Durchmusterung I/108 (meta.id)
AGK3+441846  AGK3 number I/61 (meta.id)
CPC2   Second Cape Photograpic Catalog I/85 (meta.id)
ACRSJACRS J205318.59+451053.7  ACRS number, ACRS Jhhmmss.ssSddmmss.s (Note)   (meta.id)
RA200020 53 18.595 "h:m:s" Hours RA, Equinox=J2000, Epoch=J2000 (Note)   (time.epoch;pos.eq.ra)
pmRA2000 1.74 ms/yr Centennial RA proper motion, J2000.0 (pos.pm;pos.eq.ra)
DE2000+45 10 53.770 "d:m:s" Degrees Dec, equinox, epoch J2000.0 (time.epoch;pos.eq.dec)
pmDE2000 -8.0 mas/yr Centennial Dec proper motion, J2000.0 (pos.pm;pos.eq.dec)

_RA.icrs20 53 18.599 "h:m:s" (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+45 10 53.786 "d:m:s" (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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