2MASS J09395928+3801392

All names: SDSS J093959.25+380139.2, Gaia EDR3 800575547422821888, WD 0936+382, Gaia DR3 800575547422821888, WIRED J093959.25+380139.1, Gaia DR2 800575547422821888, [HHD2009] SDSS J0939+3801, SDSS J093959.25+380139.1, TIC 17190212, 2MASS J09395928+3801392

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 09 39 59.26 (0.5) 09 39 59.25 09 39 59.26 (0.6) 09 39 59.25 09 39 59.26 (0.5) 09 39 59.25 09 39 59.11 09 39 59.25
Declination 38 01 39.07 (0.4) 38 01 39.14 38 01 39.08 (0.6) 38 01 39.11 38 01 39.29 (0.4) 38 01 39.15 38 01 35.04 38 01 39.17
Spectral type DA+M DA DA+M DA+M DA dM DA+M
Effective temperature [K] 20098.0 (769) 20520.0 (840) 8685.0 (72) 8479.0 (101)
log(g) [cgs] 8.05 (0.1) 7.98 (0.1) 8.17 (0.1) 7.74 (0.2)
Mass [M] 0.65 (0.09) 0.61 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.0692
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 2.40 (0.7) -2.35 (1) 2.40 (0.7)
Distance [pc] 415.92 (122) 423.00 (17) 415.92 (122)
Composition H
Proper motion (right ascension) [mas/yr] -0.750892964 (0.6) -3.216653941 (1) -0.751 (0.6) 1.0
Proper motion (declination) [mas/yr] -13.83836685 (0.5) -10.46058369 (1) -13.838 (0.5) -13.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.72 (0.1)
H magnitude 15.95 (0.04)
K magnitude 17.29 (0.06)
u magnitude 19.11 (0.02) 19.17 19.14 (0.02) 19.17 (0.04) 19.17 19.17 (0.04)
g magnitude 18.93 (0.009) 18.95 18.92 (0.01) 18.95 (0.02) 18.95 18.95 (0.02)
r magnitude 18.99 (0.01) 18.97 19.00 (0.01) 18.97 (0.02) 18.97 18.97 (0.02)
i magnitude 18.61 (0.01) 18.60 18.61 (0.01) 18.60 (0.02) 18.60 18.61 (0.02)
z magnitude 18.14 (0.02) 18.12 18.13 (0.02) 18.12 (0.03) 18.13 18.13 (0.03)
G magnitude 19.00 (0.02) 18.89 19.00 (0.01)
BP magnitude 19.05 (0.02) 19.00
RP magnitude 18.19 (0.02) 18.20
Pan g magnitude 18.96 (0.01)
Pan r magnitude 19.02 (0.008)
Pan i magnitude 18.58 (0.006)
Pan z magnitude 18.22 (0.008)
Pan y magnitude 18.00 (0.03)
E(B-V) 0.018

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.