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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=70375
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200008 41 20.9640 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+15 16 11.928 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195008 38 33.1634 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+15 26 55.931 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon210.8289087 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+31.0803445 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)
70375recno 70375  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Plate2429  SDSS plate number (meta.id;instr.plate)
MJD53799  Modified Julian Date of last SDSS spectrum (time.epoch)
Fiber 380  SDSS fiberID (meta.note)
ObjID 587741816773935517  SDSS DR7 Object ID (II/294) (meta.id)
RAJ2000130.33735 deg (i) J2000 Right Ascension of SDSS photometric object (pos.eq.ra;meta.main)
DEJ2000+15.26998 deg (i) J2000 Declination of SDSS photometric object (pos.eq.dec;meta.main)
umag 22.960 mag SDSS u-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.U)
e_umag 0.519 mag Mean error on umag (PSFMAGERR) (stat.error;phot.mag;em.opt.U)
gmag 22.818 mag SDSS g-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.B)
e_gmag 0.138 mag Mean error on gmag (PSFMAGERR) (stat.error;phot.mag;em.opt.B)
rmag 21.436 mag SDSS r-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.R)
e_rmag 0.065 mag Mean error on rmag (PSFMAGERR) (stat.error;phot.mag;em.opt.R)
imag 19.349 mag SDSS i-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.I)
e_imag 0.020 mag Mean error on imag (PSFMAGERR) (stat.error;phot.mag;em.opt.I)
zmag 18.340 mag SDSS z-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.I)
e_zmag 0.034 mag Mean error on zmag (PSFMAGERR) (stat.error;phot.mag;em.opt.I)
Au 0.139 mag Extinction in u-band (EXTINCTION) (phys.absorption)
Ag 0.102 mag Extinction in g-band (EXTINCTION) (phys.absorption)
Ar 0.074 mag Extinction in r-band (EXTINCTION) (phys.absorption)
Ai 0.056 mag Extinction in i-band (EXTINCTION) (phys.absorption)
Az 0.040 mag Extinction in z-band (EXTINCTION) (phys.absorption)
MJDr53405.1992 d Modified Julian Date of r-band observation (time.epoch)
RV -5 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
SpT6   [0/9] M-type spectral subtype (src.spType)
W(Ha) -1.143 0.1nm Equivalent width of H-α (Å) (EWHA) (spect.line.eqWidth)
e_W(Ha) 0.759 0.1nm Mean error on W(Ha) (EWHAERR) (stat.error)
HaS/N 2.66  S/N ratio near H-α (HASN) (stat.snr)
Ha/c 0.80  ratio of H-α height over the noise in the continuum (HADIFF) (phot.flux.density;arith.ratio)
W(Hb) 1.628 0.1nm Equivalent width of H-β (Å) (EWHB) (spect.line.eqWidth)
e_W(Hb) 6.824 0.1nm Mean error on W(Hb) (EWHBERR) (stat.error)
HbS/N 0.35  S/N ratio near H-β (HBSN) (stat.snr)
Hb/c 0.92  ratio of H-β height over the noise in the continuum (HBDIFF) (phot.flux.density;arith.ratio)
W(Hg) -47.603 0.1nm Equivalent width of H-γ (Å) (EWHG) (spect.line.eqWidth)
e_W(Hg) 389.942 0.1nm Mean error on W(Hg) (EWHGERR) (stat.error)
HgS/N 0.12   S/N ratio near H-γ (HGSN) (stat.snr)
Hg/c 2.42   ratio of H-γ height over the noise in the continuum (HGDIFF) (phot.flux.density;arith.ratio)
W(Hd) -381.863 0.1nm Equivalent width of H-δ (Å) (EWHD) (spect.line.eqWidth)
e_W(Hd)80158.250 0.1nm Mean error on W(Hd) (EWHDERR) (stat.error)
HdS/N 0.00   signal-to-noise ratio near H-δ (HDSN) (stat.snr)
Hd/c 3.04   ratio of H-δ height over the noise in the continuum (HDDIFF) (phot.flux.density;arith.ratio)
W(Ca) 10.148 0.1nm Equivalent width of CaII-K (Å)(EWCAK) (spect.line.eqWidth)
e_W(Ca) 28.230 0.1nm Mean error on W(CaK) (EWCAKERR) (stat.error)
CaS/N -0.37   S/N ratio near CaII-K (CAKSN) (stat.snr)
CA/c 3.14   ratio of Ca II K height over the noise in the continuum (CAKDIFF) (phot.flux.density;arith.ratio)
TiO5 0.190 0.1nm TiO band strength from Hammer (Covey et al. 2007AJ....134.2398C) (spect.index)
e_TiO5 0.064 0.1nm Mean error on TiO5 (TIO5ERR) (stat.error)
CaH1 0.524 0.1nm CaH1 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_CaH1 0.186 0.1nm Mean error on CaH1 (CAH1ERR) (stat.error)
CaH2 0.290 0.1nm CaH2 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_CaH2 0.038 0.1nm Mean error on CaH2 (CAH2ERR) (stat.error)
CaH3 0.562 0.1nm CaH3 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_CaH3 0.056 0.1nm Mean error on CaH3 (CAH3ERR) (stat.error)
TiO1 0.893 0.1nm TiO1 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_TiO1 0.311 0.1nm Mean error on TiO1 (TIO1ERR) (stat.error)
TiO2 0.413 0.1nm TiO2 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_TiO2 0.084 0.1nm Mean error on TiO2 (TIO2ERR) (stat.error)
TiO3 0.474 0.1nm TiO3 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_TiO3 0.123 0.1nm Mean error on TiO3 (TIO3ERR) (stat.error)
TiO4 0.404 0.1nm TiO4 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
e_TiO4 0.142 0.1nm Mean error on TiO4 (TIO4ERR) (stat.error)
TiO5R 0.191 0.1nm Reid et al. TiO5 index (TIO5_2) (Note 2)   (spect.index)
e_TiO5R 0.048 0.1nm Mean error on TiO5R (TIO5ERR2) (stat.error)
TiO8 0.740 0.1nm TiO8 band strength (Note 2)   (spect.index)
e_TiO8 0.062 0.1nm Mean error on TiO8 (TIO8ERR) (stat.error)
CaOH 0.175 0.1nm CaOH band strength (Note 2)   (phys.atmol.collStrength)
e_CaOH 0.203 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 39.52 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)
RA2deg130.33748 deg 2MASS right ascension (RA2MASS) (pos.eq.ra)
DE2deg 15.27000 deg 2MASS declination (DEC2MASS) (pos.eq.dec)
Jmag16.547 mag 2MASS J-band magnitude (phot.mag;em.IR.J)
e_Jmag 0.128 mag Mean error on Jmag (stat.error;phot.mag;em.IR.J)
Hmag16.103 mag 2MASS H-band magnitude (phot.mag;em.IR.H)
e_Hmag 0.184 mag Mean error on Hmag (stat.error;phot.mag;em.IR.H)
Kmag15.949 mag 2MASS Ks-band magnitude (phot.mag;em.IR.K)
e_Kmag 0.241 mag Mean error on Kmag (stat.error;phot.mag;em.IR.K)
JD2M2451877.9 d Julian Date of 2MASS photometry (MJD_2MASS) (time.epoch)
Dist 249.7 pc [12/] Photometric distance to object, see Bochanski et al. 2010AJ....139.2679B (pos.distance;pos.heliocentric)
Glon210.8289 deg galactic longitude (LGAL) (pos.galactic.lon)
Glat 31.0803 deg galactic latitude (BGAL) (pos.galactic.lat)
U 13.5 km/s Velocity toward Galactic center (Note 4)   (phys.veloc;pos.galactic)
V 7.1 km/s Velocity toward Galactic rotation (Note 4)   (phys.veloc.rotat;pos.galactic)
W 4.6 km/s Velocity toward North Galactic Pole (Note 4)   (phys.veloc;pos.galactic)
X 8683.7 pc Galactocentric cartesian position (Note 3)   (pos.distance;pos.galactocentric)
Y -109.6 pc Galactocentric cartesian position (Note 3)   (pos.distance;pos.galactocentric)
Z 144.2 pc Galactocentric cartesian position (Note 3)   (pos.distance;pos.galactocentric)
VX -13.5 km/s Galactocentric cartesian velocity (Note 4)   (phys.veloc;pos.cartesian.x;pos.galactocentric)
VY 227.1 km/s Galactocentric cartesian velocity (Note 4)   (phys.veloc;pos.cartesian.x;pos.galactocentric)
VZ 4.6 km/s Galactocentric cartesian velocity (Note 4)   (phys.veloc;pos.cartesian.x;pos.galactocentric)
Rg 8684.3 pc Galactocentric cylindrical coordinate (Rg=sqrt(X2+Y2) (Note 4)   (pos.frame;pos.galactocentric)
theta-0.0126 rad [-1.57/1.57] Cylindrical coordinate vector angle θ (X=Rg.cosθ) (Note 4)   (pos.posAng)
VR -16.3 km/s Velocity in radial direction (Note 4)   (pos.distance;pos.galactocentric)
Vt 226.9 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 0.072  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 1.058  Metallicity proxy ζ (Note 1)   (spect.index)
e_zeta 0.104  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 J084120.96+151611.9  Designation understandable by the Simbad data-base (meta.id)
  
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