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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=184459
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ColumnValue  Explain   (UCD)
_RAJ200018 17 36.28273 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-34 06 26.0916 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 14 17.32383 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-34 07 35.4097 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon358.82741127 deg Galactic longitude at Epoch=J1950, proper motions taken into account (pos.galactic.lon)
_Glat -8.47037615 deg Galactic latitude at Epoch=J1950, proper motions taken into account (pos.galactic.lat)
184459recno 184459  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)
ACRS184459  (i) [1,570159] ACRS sequential number (Note)   (meta.id;meta.main)
RAB195018 14 17.323 "h:m:s" (i) Hours RA, equinox=B1950, Epoch=B1950.0 (pos.eq.ra;meta.main)
DEB1950-34 07 35.410 "d:m:s" (i) Degrees Dec, equinox, epoch B1950.0 (pos.eq.dec;meta.main)
e_RAB1950 13 ms Mean error in RA at original epoch (stat.error;pos.eq.ra)
e_DEB1950 10 10mas Mean error in Dec at original epoch (stat.error;pos.eq.dec)
pmRA 0.33 ms/yr RA proper motion, FK4 system (pos.pm;pos.eq.ra)
pmDE -6.9 mas/yr DE proper motion, FK4 system (pos.pm;pos.eq.dec)
e_pmRA 0.58 ms/yr Mean error on pmRA (stat.error;pos.pm;pos.eq.ra)
e_pmDE 4.2 mas/yr Mean error on pmDE (stat.error;pos.pm;pos.eq.dec)
EpRA1945.617 yr Original epoch of RA (epoch of mean position) (time.epoch)
EpDE1942.386 yr Original epoch of DE (epoch of mean position) (time.epoch)
o_RAB1950 7  Number of positions in RA (meta.number)
o_DEB1950 8  Number of positions in DE (meta.number)
w_RAB1950 2.8  Sum of the weights in RA (stat.weight)
w_DEB1950 2.7  Sum of the weights in DE (stat.weight)
Pmag 6.84 mag [140/1350] Photographic magnitude (phot.mag;em.opt)
SpType   Spectral type (src.spType)
BD   Bonner Durchmusterung number I/122 (meta.id)
CD-3412673  Cordoba Durchmusterung number I/114 (meta.id)
CP-34 7719  Cape Photographic Durchmusterung I/108 (meta.id)
AGK3   AGK3 number I/61 (meta.id)
CPC2563252  Second Cape Photograpic Catalog I/85 (meta.id)
ACRSJACRS J181736.28-340626.0  ACRS number, ACRS Jhhmmss.ssSddmmss.s (Note)   (meta.id)
RA200018 17 36.282 "h:m:s" Hours RA, Equinox=J2000, Epoch=J2000 (Note)   (time.epoch;pos.eq.ra)
pmRA2000 0.26 ms/yr Centennial RA proper motion, J2000.0 (pos.pm;pos.eq.ra)
DE2000-34 06 26.070 "d:m:s" Degrees Dec, equinox, epoch J2000.0 (time.epoch;pos.eq.dec)
pmDE2000 -7.1 mas/yr Centennial Dec proper motion, J2000.0 (pos.pm;pos.eq.dec)

_RA.icrs18 17 36.283 "h:m:s" (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-34 06 26.092 "d:m:s" (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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