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II/207A/catalog Palomar-Green catalog UV-excess stellar objects (Green+ 1986)
Palomar-Green Survey Data (original catalog completed by accurate positions) (1878 rows)
  recno=1454
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ColumnValue  Explain   (UCD)
_RAJ200016 21 04.4100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-00 16 10.700 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195016 18 30.4020 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-00 09 06.416 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon013.3195185 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+32.7354281 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
1454recno 1454  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

PG1618-002  PG name, as in file "catalog.dat" (meta.id;meta.main)
sM   [BbCgLMSsTU?-] Source of position (Note 1)   (meta.ref;pos.frame)
Vmag113.2 mag V or U magnitude rounded to 0.1mag (blank for the 2 lost stars) (phot.mag;em.opt.V)
n_Vmag1V   [VU] Filter of Vmag1 (meta.note)
Class1PNN  Spectral classification, mainly from catalog.dat file. (spect.index)
Comment1PN G013.3+32.7  cross-identifications and comments from B. Skiff (meta.id.cross)
RA5016 18 30.8 "h:m:s" Published Right Ascension 1950 (pos.eq.ra)
DE50-00 09 09 "d:m:s" Published Declination 1950 (pos.eq.dec)
Pmag13.03 mag Photographic magnitude, accuracy 0.29mag (phot.mag;em.opt)
Blim15.83 mag []? Limiting magnitude of field (2) (Note 2)   (phot.mag)
CommentSn 1  Other names, redshift or spectral type (Note 3)   (meta.id)
ClassPNN  Spectral classification (src.spType)
n_Class    [*] a high dispersion spectrum exists (meta.note)
Bmag  mag Photoelectic Johnson's magnitude (phot.mag;em.opt.B)
u_Bmag   Uncertainty flag (:) on Bmag (meta.code.error)
U-B  mag Photoelectic Johnson's colour index (phot.color;em.opt.U;em.opt.B)
u_U-B   Uncertainty flag (:) on U-B (meta.code.error;phot.color;em.opt.U)
B-V  mag Photoelectic Johnson's colour index (phot.color;em.opt.B;em.opt.V)
vmag  mag Palomar photometric index (Note 4)   (phot.mag;em.opt.V)
u_vmag   Uncertainty flag (:) on vmag (meta.code.error)
u-v  mag Palomar photometric index (Note 4)   (phot.color;em.opt.U;em.opt.V)
u_u-v   Uncertainty flag (:) on u-v (meta.code.error;phot.color;em.opt.U)
b-v  mag Palomar photometric index (Note 4)   (phot.color;em.opt.B;em.opt.V)
g-r  mag Palomar photometric index (Note 4)   (phot.color;em.opt.V;em.opt.R)
Vmag  mag V magnitude in Stroemgren system (Note 5)   (phot.mag;em.opt.B)
b-y  mag Colour in Stroemgren system (Note 5)   (phot.color;em.opt.B;em.opt.V)
u_b-y   Uncertainty flag (:) on b-y (meta.code.error;phot.color;em.opt.B)
u-b  mag Colour in Stroemgren system (Note 5)   (phot.color;em.opt.U;em.opt.B)
u_u-b   Uncertainty flag (:) on u-b (meta.code.error;phot.color;em.opt.U)
m1  mag Index (v-b)-(b-y) in Stroemgren system (Note 5)   (phot.color)
Refs    [0-9, ] References (Note 6)   (meta.bib)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)

RAJ200016 21 04.41 "h:m:s" (i) Right Ascension J2000 (pos.eq.ra;meta.main)
DEJ2000-00 16 10.7 "d:m:s" (i) Declination J2000 (pos.eq.dec;meta.main)
  
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