WD 0937+015

All names: WD 0937+015, SDSS J093958.66+011638.2, SDSS J093958.66+011638.1, USNO-B1.0 0912-00182753, Gaia DR2 3846451454781376512, SDSS J093958.65+011638.2, Gaia EDR3 3846451454781376512, GALEX J093958.7+011638, SDSS J093958.65+011638.1, HS 0937+0130, Gaia DR3 3846451454781376512

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Koester et al. 2009 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 09 39 58.64 (0.05) 09 39 58.66 09 39 58.64 (0.08) 09 39 58.64 09 39 58.66 (0.05) 09 39 58.66 09 39 57.67 09 39 58.66 09 39 58.66
Declination 01 16 38.08 (0.05) 01 16 38.24 01 16 38.09 (0.09) 01 16 38.08 01 16 38.24 (0.05) 01 16 38.24 01 16 34.32 01 16 38.18 01 16 38.17
Spectral type DA DA DA DA DA DA2.5 DA DA
Effective temperature [K] 17847.0 20150.0 (200) 19717.0 (47) 19477.0 (299) 20000.0 (127) 19619.0 (115) 20080.0 (128)
log(g) [cgs] 8.37 8.30 (0.03) 8.31 (0.008) 8.45 (0.01) 8.39 (0.02) 8.31 (0.02) 8.41 (0.02)
Mass [M] 0.847 0.81 (0.02) 0.9 (0.01) 0.798 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.2176 0.1349
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] 9.82 (0.06) 9.82 (0.1) 9.82 9.82 (0.06)
Distance [pc] 101.83 (0.7) 101.82 (1) 101.83 101.83 (0.7)
Composition H H
Proper motion (right ascension) [mas/yr] -13.01735295 (0.06) -12.96242348 (0.1) -13.017 (0.06) -9.8 -11.0
Proper motion (declination) [mas/yr] -9.781826811 (0.05) -9.66426883 (0.1) -9.782 (0.05) -10.6 -11.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.50 16.20
V magnitude
R magnitude 16.60
I magnitude
J magnitude 17.07 (0.02)
H magnitude 17.11 (0.05)
K magnitude 17.19 (0.08)
u magnitude 16.45 (0.006) 16.45 (0.006) 16.44 (0.02) 16.47 16.47 (0.02) 16.47 (0.02)
g magnitude 16.41 (0.004) 16.41 (0.004) 16.45 (0.02) 16.45 16.46 (0.02) 16.45 (0.02)
r magnitude 16.76 (0.005) 16.76 (0.005) 16.76 (0.02) 16.77 16.76 (0.02) 16.77 (0.01)
i magnitude 17.04 (0.006) 17.04 (0.006) 17.03 (0.02) 17.04 17.04 (0.02) 17.04 (0.02)
z magnitude 17.35 (0.02) 17.35 (0.01) 17.34 (0.02) 17.33 17.35 (0.02) 17.33 (0.02)
G magnitude 16.60 (0.003) 16.62 16.60 16.60 (0.003)
BP magnitude 16.53 (0.003) 16.52
RP magnitude 16.78 (0.006) 16.79
Pan g magnitude 16.47 (0.003)
Pan r magnitude 16.78 (0.004)
Pan i magnitude 17.09 (0.003)
Pan z magnitude 17.33 (0.007)
Pan y magnitude 17.51 (0.02)
E(B-V) 0.004

* 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.