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VizieR

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J/PASP/122/1397/s4g Spitzer Survey of Stellar Structure in Galaxies (Sheth+, 2010)
S4G catalog Version 2 (2013-09) (2352 rows)
  recno=1233
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ColumnValue  Explain   (UCD)
_RAJ200003 38 52.0728 "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)
_DEJ2000-26 20 15.648 "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)
_RAB195003 36 45.3259 "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)
_DEB1950-26 29 58.344 "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)
_Glon221.5362426 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-52.7840945 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)
1233recno 1233  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
A   A indicates additions in S4G (version 2), compared to the original table (meta.note)

NameNGC1398  Galaxy name (meta.id;meta.main)
RAJ2000054.71697 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000-26.33768 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
amaj267.0 arcsec Semi-major axis at level µ(3.6um)=25.5mag(AB)/arcsec2 (phys.angSize.smajAxis)
PA -81.2 deg [-160/90] Position angle of major axis (pos.posAng)
ell 0.265   [0/1] Ellipticity (1-b/a) (src.ellipticity)
[3.6] 9.166 mag Spitzer/IRAC 3.6um asymptotic magnitude (AB) (phot.mag;em.IR.3-4um)
e_[3.6] 0.001 mag Mean error on [3.6] (stat.error)
[4.5] 9.630 mag Spitzer/IRAC 4.5um asymptotic magnitude (AB) (phot.mag;em.IR.4-8um)
e_[4.5] 0.001 mag Growth-curve fitting error in [4.5] (stat.error)
c31 6.531   [1/] r(75%)/r(25%) concentration index at 3.6um (meta.code;spect.index;em.IR.3-4um)
c42 4.960   5*log10(r(80%)/r(20%)) concentration index at 3.6um (meta.code;spect.index;em.IR.3-4um)
M3.6-22.449 mag Absolute magnitude at 3.6um (phys.magAbs;em.IR.3-4um)
M4.5-21.985 mag Absolute magnitude at 4.5um (phys.magAbs;em.IR.4-8um)
logM*11.133 [Msun] Stellar mass (phys.mass)
Dmean 21.033 Mpc Mean redshift-independent distance (pos.distance;pos.heliocentric)
e_Dmean 4.466 Mpc Standard deviation of Dmean (stat.error)
TT 2.0   Morphological type code (meta.code;src.morph.type)
e_TT 0.3   Error on TT (stat.error)
Vr 1394.6 km/s Heliocentric radial velocity from radio measurement (spect.dopplerVeloc;pos.heliocentric)
e_Vr 4.5 km/s Mean error on Vr (stat.error)

S4GS4G  See the NASA/IPAC details for this galaxy (meta.ref.url)
SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
NEDNED  ask the NED data-base about this object (meta.ref.url)
LEDALEDA  ask the LEDA data-base about this object (meta.ref.url)
  
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