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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=121
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ColumnValue  Explain   (UCD)
_RAJ200012 51 32.3664 "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)
_DEJ2000-13 19 47.928 "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)
_RAB195012 48 55.1938 "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)
_DEB1950-13 03 29.813 "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)
_Glon302.9699756 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+49.5417612 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)
121recno 121  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)

NameNGC4722  Galaxy name (meta.id;meta.main)
RAJ2000192.88486 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000-13.32998 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
amaj 69.7 arcsec Semi-major axis at level µ(3.6um)=25.5mag(AB)/arcsec2 (phys.angSize.smajAxis)
PA 33.0 deg [-160/90] Position angle of major axis (pos.posAng)
ell 0.565   [0/1] Ellipticity (1-b/a) (src.ellipticity)
[3.6]12.080 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]12.564 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 3.897   [1/] r(75%)/r(25%) concentration index at 3.6um (meta.code;spect.index;em.IR.3-4um)
c42 3.753   5*log10(r(80%)/r(20%)) concentration index at 3.6um (meta.code;spect.index;em.IR.3-4um)
M3.6-19.205 mag Absolute magnitude at 3.6um (phys.magAbs;em.IR.3-4um)
M4.5-18.721 mag Absolute magnitude at 4.5um (phys.magAbs;em.IR.4-8um)
logM* 9.850 [Msun] Stellar mass (phys.mass)
Dmean  Mpc Mean redshift-independent distance (pos.distance;pos.heliocentric)
e_Dmean  Mpc Standard deviation of Dmean (stat.error)
TT 0.0   Morphological type code (meta.code;src.morph.type)
e_TT 0.6   Error on TT (stat.error)
Vr 1312.0 km/s Heliocentric radial velocity from radio measurement (spect.dopplerVeloc;pos.heliocentric)
e_Vr 9.4 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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