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VizieR

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J/A+A/475/217/pne Classification of planetary nebulae (Quireza+, 2007)
Parameters, pre-classification and posterior classification of planetary nebulae (tables 1 and 6 of paper) (476 rows)
  recno=389
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200019 43 57.8440 "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)
_DEJ2000-14 09 11.910 "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)
_RAB195019 41 08.7996 "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)
_DEB1950-14 16 25.535 "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)
_Glon025.8587589 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-17.9117848 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)
389recno 389  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NameNGC 6818  Planetary nebula main designation (Common name) (meta.id;phys.atmol.configuration;meta.main)
PNG025.8-17.9  Designation of the Galactic Planetary Nebula (meta.id)
He/H 0.099   Helium over hydrogen abundance ratio by number (phys.abund.Y;arith.ratio)
n_He/H    [:] Note about the He/H abundance ratio (Note 1)   (meta.note)
r_He/H24  Reference of the He/H abundance ratio (meta.ref;phys.abund.Y)
lg(O/H)+12 8.68   Oxygen over hydrogen abundance ratio by number (phys.abund)
r_lg(O/H)+1224  Reference of the O/H abundance ratio (meta.ref;pos.frame)
lg(N/H)+12 8.10   Nitrogen over hydrogen abundance ratio by number (phys.abund)
r_lg(N/H)+1224  Reference of the N/H abundance ratio (meta.ref;pos.frame)
lg(N/O)-0.58   Nitrogen over oxygen abundance ratio by number (phys.abund)
dhel 2.2 kpc Heliocentric distance (pos.distance;pos.heliocentric)
r_dhel36   Reference of the heliocentric distance (meta.ref;pos.frame)
RGal 5.8 kpc Galactocentric distance (pos.distance;pos.galactocentric)
abs(Z) 0.676 kpc Absolute value of the height in relation to the Galactic plane (pos.cartesian.z;pos.galactic)
VLSR -3.7 km/s Radial velocity relative to the Local Sandard of Rest (Note 2)   (spect.dopplerVeloc;pos.lsr)
abs(DV) 51.3 km/s Absolute value of the peculiar velocity (phys.veloc)
Theta 18.8 arcsec Angular diameter of the planetary nebula (phys.angSize)
r_Theta87  Reference of the angular diameter (meta.ref;pos.frame)
S5GHz 300.0 mJy 5GHz (6cm) radio flux density (phot.flux.density;em.radio.3-6GHz)
r_S5GHz 99   Reference of the 5 GHz flux density (meta.ref;pos.frame)
TypeIIaF  Classification according to the Peimbert's types (src.class)
p(typeI) 0.00  Posterior probability for the membership of each object to the type I group (stat.probability)
p(typeIIa) 0.47  Posterior probability for the membership of each object to the type IIa group (stat.probability)
p(typeIIb) 0.45  Posterior probability for the membership of each object to the type IIb group (stat.probability)
p(typeIII) 0.08  Posterior probability for the membership of each object to the type III group (stat.probability)
p(typeIV) 0.00  Posterior probability for the membership of each object to the type IV group (stat.probability)
Pre-classIIaF  Previous classification (as in column "Type" of Table 1) (src.class)
Post-classIIa  Posterior classification (src.class)

SimbadNamePN G025.8-17.9  Designation understandable by the Simbad data-base (meta.id)
_RA295.99102 deg (i) Computed Right Ascension for Equinox: J2000 (pos.eq.ra;meta.main)
_DE-14.15331 deg (i) Computed Declination for Equinox: J2000 (pos.eq.dec;meta.main)
  
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