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I/312/sample PPMX Catalog of positions and proper motions (Roeser+ 2008)
The PPMX Catalog (Position and Proper Motions eXtended) (18088919 rows)
  PPMX===174625.0+274301
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Note: The limiting magnitude is about 15.2 in the GSC photometric system.

ColumnValue  Explain   (UCD)
_RAJ200017 46 25.08792 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+27 43 01.5564 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195017 44 27.65967 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+27 44 42.2657 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon052.43164379 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+25.63357088 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)

PPMX174625.0+274301  (i) Name (IAU convention HHMMSS.S+DDMMSSa) (Note 3)   (meta.id;meta.main)
RAJ2000266.604533 deg (i) Right Ascension J2000.0, epoch 2000.0 (pos.eq.ra;meta.main)
DEJ2000+27.717099 deg (i) Declination J2000.0, epoch 2000.0 (pos.eq.dec;meta.main)
pmRA -343.35 mas/yr Proper Motion in RA*cos(DEmas) (pos.pm;pos.eq.ra)
pmDE -743.88 mas/yr Proper Motion in DE (pos.pm;pos.eq.dec)
epRA1970.41 yr Mean Epoch (RA) (time.epoch)
epDE1970.00 yr Mean Epoch (DE) (time.epoch)
e_RAJ2000 77 mas Mean error in RA*cos(DEmas) at epRA (stat.error;pos.eq.ra)
e_DEJ2000 77 mas Mean error in DE at epDE (stat.error;pos.eq.dec)
e_pmRA 2.0 mas/yr Mean error in pmRA*cos(DEmas) (stat.error;pos.pm;pos.eq.ra)
e_pmDE 2.0 mas/yr Mean error in pmDE (stat.error;pos.pm;pos.eq.dec)
Cmag11.100 mag Catalogue magnitude from source r_ID (phot.mag;em.opt.R)
Rmag 7.294 mag Calculated Ru magnitude (579-642nm) from source r_ID (phot.mag;em.opt.R)
Bmag11.253 mag B magnitude in Johnson system (phot.mag;em.opt.B)
e_Bmag161 mmag Standard error on B magnitude (stat.error;phot.mag;em.opt.B)
Vmag  mag V magnitude in Johnson system (phot.mag;em.opt.V)
e_Vmag  mmag Standard error on V magnitude (stat.error;phot.mag;em.opt.V)
Jmag 5.772 mag (i) J magnitude from 2MASS (phot.mag;em.IR.J)
e_Jmag 23 mmag Standard error on J magnitude (stat.error;phot.mag;em.IR.J)
Hmag 5.174 mag (i) H magnitude from 2MASS (phot.mag;em.IR.H)
e_Hmag 20 mmag Standard error on H magnitude (stat.error;phot.mag;em.IR.H)
Kmag 4.953 mag (i) K magnitude from 2MASS (phot.mag;em.IR.K)
e_Kmag 16 mmag Standard error on K magnitude (stat.error;phot.mag;em.IR.K)
Nobs 3   Number of observation in LSQ fit (meta.number)
P    [P] P if LSQ fit is bad (meta.code)
subS   [SHO] subset flag (Note 1)   (meta.id)
r_IDP   [HTPSGA] source catalogue flag (Note 2)   (meta.ref;pos.frame)
ID106321  star identifier in the source catalogue (meta.id)
  
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