VizieR

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VizieR

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J/ApJ/834/85/table1 Hα emission in nearby M dwarfs (Newton+, 2017)
Magnetic activity measurements and rotation periods for nearby northern M dwarfs (2202 rows)
  recno=302
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200008 55 24.85000 "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+70 47 39.1440 "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)
_RAB195008 50 30.68961 "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+70 59 05.4314 "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)
_Glon143.21030956 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+35.54682257 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)
302recno 302  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

2MASS08552479+7047389  2MASS identifier (HHMMSSss+DDMMSSs; J2000) (meta.id;meta.main)
RAJ200008 55 24.850 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+70 47 39.144 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
Mass 0.798 Msun [0.05/0.9] Stellar mass (phys.mass)
Rad 0.802 Rsun [0.07/0.9] Stellar radius (phys.size.radius)
chi  10-5 [0.1/8.4] χ parameter times 10-5 (Note 1)   (stat.fit.param)
Per  d [0.1/151] Photometric rotation period (time.period)
r_Per   ADS bibcode for Per (meta.ref;pos.frame)
EWHa  0.1nm [-28/0.5] Hα equivalent width, this work (spect.line.eqWidth)
e_EWHa  0.1nm [0.01/0.7] Error in EWHa (stat.error)
EWHa-r 0.317 0.1nm [-28/1.3] Hα EW adopted in restricted sample (spect.line.eqWidth)
e_EWHa-r  0.1nm [0/5.121] Error in EWHa-r (stat.error)
r_EWHa-r2002AJ....123.3356G  ADS bibcode for EWHa-r (meta.ref;pos.frame)
logLHa  [10-4] [-0.6/5] log LHα/Lbol x10-4 relative to "quiescent" level (phys.luminosity;em.line.Halpha)
l_EWHa-u0   [0/1] Upper limit flag for EWHa-u; 1=upper limit (meta.code.error)
EWHa-u 0.317 0.1nm [-49.6/1.3] Hα EW adopted in unrestricted sample (spect.line.eqWidth)
e_EWHa-u  0.1nm [0/5.121] Error in EWHa-u (stat.error)
r_EWHa-u2002AJ....123.3356G  ADS bibcode for EWHa-u (meta.ref;pos.frame)
Act0  Activity flag (0=active, 1=inactive) (meta.code)
Bin0  Binary flag (0=no known close companion, 1=companion) (meta.code)

LSPM 2  Display data within 1.5" from the LSPM-North Catalog (Lepine+ 2005, I/298) (meta.ref.url)
SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
  
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