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J/AJ/141/97/catalog SDSS DR7 M dwarfs (West+, 2011)
The catalog of spectroscopic M dwarfs original column names in green (70840 rows)
  recno=51116
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200009 48 27.6768 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+50 52 59.124 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195009 45 08.6439 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+51 06 56.616 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon165.6288425 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+48.2131080 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)
51116recno 51116  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Plate 902  SDSS plate number (meta.id;instr.plate)
MJD52409  Modified Julian Date of last SDSS spectrum (time.epoch)
Fiber 194  SDSS fiberID (meta.note)
ObjID 587732049483989206  SDSS DR7 Object ID (II/294) (meta.id)
RAJ2000147.11532 deg (i) J2000 Right Ascension of SDSS photometric object (pos.eq.ra;meta.main)
DEJ2000+50.88309 deg (i) J2000 Declination of SDSS photometric object (pos.eq.dec;meta.main)
umag 23.944 mag SDSS u-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.U)
e_umag 0.938 mag Mean error on umag (PSFMAGERR) (stat.error;phot.mag;em.opt.U)
gmag 22.586 mag SDSS g-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.B)
e_gmag 0.127 mag Mean error on gmag (PSFMAGERR) (stat.error;phot.mag;em.opt.B)
rmag 21.159 mag SDSS r-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.R)
e_rmag 0.060 mag Mean error on rmag (PSFMAGERR) (stat.error;phot.mag;em.opt.R)
imag 19.268 mag SDSS i-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.I)
e_imag 0.034 mag Mean error on imag (PSFMAGERR) (stat.error;phot.mag;em.opt.I)
zmag 18.230 mag SDSS z-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.I)
e_zmag 0.030 mag Mean error on zmag (PSFMAGERR) (stat.error;phot.mag;em.opt.I)
Au 0.070 mag Extinction in u-band (EXTINCTION) (phys.absorption)
Ag 0.052 mag Extinction in g-band (EXTINCTION) (phys.absorption)
Ar 0.037 mag Extinction in r-band (EXTINCTION) (phys.absorption)
Ai 0.028 mag Extinction in i-band (EXTINCTION) (phys.absorption)
Az 0.020 mag Extinction in z-band (EXTINCTION) (phys.absorption)
MJDr52283.2862 d Modified Julian Date of r-band observation (time.epoch)
RV -42 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
SpT7   [0/9] M-type spectral subtype (src.spType)
W(Ha) 2.060 0.1nm Equivalent width of H-α (Å) (EWHA) (spect.line.eqWidth)
e_W(Ha) 1.512 0.1nm Mean error on W(Ha) (EWHAERR) (stat.error)
HaS/N 1.70  S/N ratio near H-α (HASN) (stat.snr)
Ha/c 1.20  ratio of H-α height over the noise in the continuum (HADIFF) (phot.flux.density;arith.ratio)
W(Hb) 18.257 0.1nm Equivalent width of H-β (Å) (EWHB) (spect.line.eqWidth)
e_W(Hb) 91.373 0.1nm Mean error on W(Hb) (EWHBERR) (stat.error)
HbS/N 0.20  S/N ratio near H-β (HBSN) (stat.snr)
Hb/c 2.53  ratio of H-β height over the noise in the continuum (HBDIFF) (phot.flux.density;arith.ratio)
W(Hg) -13.983 0.1nm Equivalent width of H-γ (Å) (EWHG) (spect.line.eqWidth)
e_W(Hg) 226.172 0.1nm Mean error on W(Hg) (EWHGERR) (stat.error)
HgS/N -0.06   S/N ratio near H-γ (HGSN) (stat.snr)
Hg/c 2.11   ratio of H-γ height over the noise in the continuum (HGDIFF) (phot.flux.density;arith.ratio)
W(Hd) -6.720 0.1nm Equivalent width of H-δ (Å) (EWHD) (spect.line.eqWidth)
e_W(Hd) 29.192 0.1nm Mean error on W(Hd) (EWHDERR) (stat.error)
HdS/N 0.25   signal-to-noise ratio near H-δ (HDSN) (stat.snr)
Hd/c 5.52   ratio of H-δ height over the noise in the continuum (HDDIFF) (phot.flux.density;arith.ratio)
W(Ca) -6.791 0.1nm Equivalent width of CaII-K (Å)(EWCAK) (spect.line.eqWidth)
e_W(Ca) 4.966 0.1nm Mean error on W(CaK) (EWCAKERR) (stat.error)
CaS/N -1.57   S/N ratio near CaII-K (CAKSN) (stat.snr)
CA/c 4.27   ratio of Ca II K height over the noise in the continuum (CAKDIFF) (phot.flux.density;arith.ratio)
TiO5 0.416 0.1nm TiO band strength from Hammer (Covey et al. 2007AJ....134.2398C) (spect.index)
e_TiO5 0.076 0.1nm Mean error on TiO5 (TIO5ERR) (stat.error)
CaH1 0.546 0.1nm CaH1 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_CaH1 0.157 0.1nm Mean error on CaH1 (CAH1ERR) (stat.error)
CaH2 0.346 0.1nm CaH2 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_CaH2 0.050 0.1nm Mean error on CaH2 (CAH2ERR) (stat.error)
CaH3 0.517 0.1nm CaH3 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_CaH3 0.062 0.1nm Mean error on CaH3 (CAH3ERR) (stat.error)
TiO1 0.999 0.1nm TiO1 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_TiO1 0.251 0.1nm Mean error on TiO1 (TIO1ERR) (stat.error)
TiO2 0.493 0.1nm TiO2 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_TiO2 0.095 0.1nm Mean error on TiO2 (TIO2ERR) (stat.error)
TiO3 0.606 0.1nm TiO3 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_TiO3 0.100 0.1nm Mean error on TiO3 (TIO3ERR) (stat.error)
TiO4 0.786 0.1nm TiO4 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_TiO4 0.152 0.1nm Mean error on TiO4 (TIO4ERR) (stat.error)
TiO5R 0.396 0.1nm Reid et al. TiO5 index (TIO5_2) (Note 2)   (spect.index)
e_TiO5R 0.059 0.1nm Mean error on TiO5R (TIO5ERR2) (stat.error)
TiO8 0.856 0.1nm TiO8 band strength (Note 2)   (spect.index)
e_TiO8 0.089 0.1nm Mean error on TiO8 (TIO8ERR) (stat.error)
CaOH 0.392 0.1nm CaOH band strength (Note 2)   (phys.atmol.collStrength)
e_CaOH 0.172 0.1nm Mean error on CaOH (CAOHERR) (stat.error)
pmRA  mas/yr Proper Motion in Right Ascension (Note 5)   (pos.pm;pos.eq.ra)
e_pmRA  mas/yr Mean error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE  mas/yr Proper Motion in Declination (Note 5)   (pos.pm;pos.eq.dec)
e_pmDE  mas/yr Mean error on pmDE (stat.error;pos.pm;pos.eq.dec)
NU0   [0/2] Number of objects in USNO-B that matched within 1arcsec. (MATCH) (meta.number)
r22 26.88 arcsec Distance to nearest g<22mag neighbor (DIST22) (pos.angDistance)
Nd0  Number of detections (plates on which the object was detected in USNO-B +1) (NFIT) (meta.number)
Omag 0.00 mag Recalibrated USNO-B O magnitude (USNO_O) (phot.mag;em.opt.B)
Bjmag 0.00 mag Recalibrated Bj magnitude (USNO_J) (phot.mag;em.opt.B)
sigRA  mas rms residual for the proper motion fit in RA (stat.fit.residual)
sigDE  mas rms residual for the proper motion fit in Dec (stat.fit.residual)
RA2deg  deg 2MASS right ascension (RA2MASS) (pos.eq.ra)
DE2deg  deg 2MASS declination (DEC2MASS) (pos.eq.dec)
Jmag  mag 2MASS J-band magnitude (phot.mag;em.IR.J)
e_Jmag 0.000 mag Mean error on Jmag (stat.error;phot.mag;em.IR.J)
Hmag  mag 2MASS H-band magnitude (phot.mag;em.IR.H)
e_Hmag 0.000 mag Mean error on Hmag (stat.error;phot.mag;em.IR.H)
Kmag  mag 2MASS Ks-band magnitude (phot.mag;em.IR.K)
e_Kmag 0.000 mag Mean error on Kmag (stat.error;phot.mag;em.IR.K)
JD2M  d Julian Date of 2MASS photometry (MJD_2MASS) (time.epoch)
Dist 271.5 pc [12/] Photometric distance to object, see Bochanski et al. 2010AJ....139.2679B (pos.distance;pos.heliocentric)
Glon165.6288 deg galactic longitude (LGAL) (pos.galactic.lon)
Glat 48.2131 deg galactic latitude (BGAL) (pos.galactic.lat)
U 37.3 km/s Velocity toward Galactic center (Note 4)   (phys.veloc;pos.galactic)
V -2.0 km/s Velocity toward Galactic rotation (Note 4)   (phys.veloc.rotat;pos.galactic)
W -24.5 km/s Velocity toward North Galactic Pole (Note 4)   (phys.veloc;pos.galactic)
X 8675.3 pc Galactocentric cartesian position (Note 3)   (pos.distance;pos.galactocentric)
Y 44.9 pc Galactocentric cartesian position (Note 3)   (pos.distance;pos.galactocentric)
Z 217.8 pc Galactocentric cartesian position (Note 3)   (pos.distance;pos.galactocentric)
VX -37.3 km/s Galactocentric cartesian velocity (Note 4)   (phys.veloc;pos.cartesian.x;pos.galactocentric)
VY 218.0 km/s Galactocentric cartesian velocity (Note 4)   (phys.veloc;pos.cartesian.x;pos.galactocentric)
VZ -24.5 km/s Galactocentric cartesian velocity (Note 4)   (phys.veloc;pos.cartesian.x;pos.galactocentric)
Rg 8675.4 pc Galactocentric cylindrical coordinate (Rg=sqrt(X2+Y2) (Note 4)   (pos.frame;pos.galactocentric)
theta 0.0052 rad [-1.57/1.57] Cylindrical coordinate vector angle θ (X=Rg.cosθ) (Note 4)   (pos.posAng)
VR -36.2 km/s Velocity in radial direction (Note 4)   (pos.distance;pos.galactocentric)
Vt 218.2 km/s Velocity in tangential direction (Note 4)   (phys.veloc.transverse)
q1   [0/1] Combination of SDSS quality flags (0=bad; 1=good) (GOODPHOT) (meta.code.qual)
MHa    [0/1] Magnetic activity state in H-α 1=active (ACTHA) (meta.code)
MHb    [0/1] Magnetic activity state in H-β 1=active (ACTHB) (meta.code)
MHg    [0/1] Magnetic activity state in H-γ 1=active (ACTHG) (meta.code)
MHd    [0/1] Magnetic activity state in H-δ 1=active (ACTHD) (meta.code)
MCa    [0/1] Magnetic activity state in CaII-K 1=active (ACTCAK) (meta.code)
LHa/b 0.000  Ratio H-α/bolometric luminosity (LHALBOL) (phys.luminosity;arith.ratio)
e_LHa/b 0.000  Mean error on LHa/b (LHALBOLERR) (stat.error)
LHb/b 0.000  Ratio H-α/bolometric luminosity (LHBLBOL) (phys.luminosity;arith.ratio)
e_LHb/b 0.000  Mean error on LHb/b (LHBLBOLERR) (stat.error)
LHg/b 0.000  Ratio H-α/bolometric luminosity (LHGLBOL) (phys.luminosity;arith.ratio)
e_LHg/b 0.000  Mean error on LHg/b (LHGLBOLERR) (stat.error)
LHd/b 0.000  Ratio H-α/bolometric luminosity (LHDLBOL) (phys.luminosity;arith.ratio)
e_LHd/b 0.000  Mean error on LHd/b (LHDLBOLERR) (stat.error)
LCa/b 0.000   Ratio CaII-K/bolometric luminosity (LCAKLBOL) (phys.luminosity;arith.ratio)
e_LCa/b 0.000   Mean error on LCa/b (LCAKLBOLERR) (stat.error)
zeta 0.770  Metallicity proxy ζ (Note 1)   (spect.index)
e_zeta 0.114  Mean error on zeta (stat.error)
WDM0   [0/1] 1=Likely white dwarf/M dwarf candidate from Morgan et al. (2012AJ....144...93M) (meta.code)
pmOK0   [0/1] 1=satisfies proper motion criteria from Munn et al. 2004AJ....127.3034M (GOODPM) (meta.code)

SDSS7SDSS7  Details from the SDSS-DR7 (II/294) (meta.ref.url)
SloanSloan  Display the SDSS data for this star (meta.ref.url)
SimbadNameSDSS J094827.67+505259.1  Designation understandable by the Simbad data-base (meta.id)
  
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