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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===222516.6+012238
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Note: The limiting magnitude is about 15.2 in the GSC photometric system.

ColumnValue  Explain   (UCD)
_RAJ200022 25 16.62288 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+01 22 38.6364 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195022 22 43.38327 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+01 07 22.8738 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon066.00671718 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat-44.73943556 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)

PPMX222516.6+012238  (i) Name (IAU convention HHMMSS.S+DDMMSSa) (Note 3)   (meta.id;meta.main)
RAJ2000336.319262 deg (i) Right Ascension J2000.0, epoch 2000.0 (pos.eq.ra;meta.main)
DEJ2000+01.377399 deg (i) Declination J2000.0, epoch 2000.0 (pos.eq.dec;meta.main)
pmRA 18.07 mas/yr Proper Motion in RA*cos(DEmas) (pos.pm;pos.eq.ra)
pmDE 2.71 mas/yr Proper Motion in DE (pos.pm;pos.eq.dec)
epRA1991.25 yr Mean Epoch (RA) (time.epoch)
epDE1991.37 yr Mean Epoch (DE) (time.epoch)
e_RAJ2000 1 mas Mean error in RA*cos(DEmas) at epRA (stat.error;pos.eq.ra)
e_DEJ2000 1 mas Mean error in DE at epDE (stat.error;pos.eq.dec)
e_pmRA 0.3 mas/yr Mean error in pmRA*cos(DEmas) (stat.error;pos.pm;pos.eq.ra)
e_pmDE 0.3 mas/yr Mean error in pmDE (stat.error;pos.pm;pos.eq.dec)
Cmag 4.800 mag Catalogue magnitude from source r_ID (phot.mag;em.opt.R)
Rmag 5.105 mag Calculated Ru magnitude (579-642nm) from source r_ID (phot.mag;em.opt.R)
Bmag 4.632 mag B magnitude in Johnson system (phot.mag;em.opt.B)
e_Bmag 3 mmag Standard error on B magnitude (stat.error;phot.mag;em.opt.B)
Vmag 4.798 mag V magnitude in Johnson system (phot.mag;em.opt.V)
e_Vmag 3 mmag Standard error on V magnitude (stat.error;phot.mag;em.opt.V)
Jmag 5.305 mag (i) J magnitude from 2MASS (phot.mag;em.IR.J)
e_Jmag 37 mmag Standard error on J magnitude (stat.error;phot.mag;em.IR.J)
Hmag 5.365 mag (i) H magnitude from 2MASS (phot.mag;em.IR.H)
e_Hmag 49 mmag Standard error on H magnitude (stat.error;phot.mag;em.IR.H)
Kmag 5.351 mag (i) K magnitude from 2MASS (phot.mag;em.IR.K)
e_Kmag 20 mmag Standard error on K magnitude (stat.error;phot.mag;em.IR.K)
Nobs    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_IDH   [HTPSGA] source catalogue flag (Note 2)   (meta.ref;pos.frame)
ID110672  star identifier in the source catalogue (meta.id)
  
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