GALEX 2689961833136131446

All names: USNO-A2.0 1125-19704486, LAMOST J231141.44+232706.9, Gaia EDR3 2839349140754975104, GALEX 2689961833136131446, Gaia DR3 2839349140754975104, SDSS J231141.44+232707.0, Gaia DR2 2839349140754975104, SDSS J231141.44+232707.00, SDSS J231141.43+232706.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 23 11 41.44 (0.2) 23 11 41.44 23 11 41.44 (0.2) 23 11 41.44 23 11 41.44 (0.2) 23 11 41.44
Declination 23 27 06.88 (0.2) 23 27 06.97 23 27 06.89 (0.2) 23 27 06.88 23 27 06.94 (0.2) 23 27 06.99
Spectral type DB DB DB DB DB+MS
Effective temperature [K] 16607.0 11514.0 17005.0 (99) 12209.0 (676) 16930.0 (125)
log(g) [cgs] 7.92 7.67 7.90 (0.06) 7.66 (0.1) 8.05 (0.07)
Mass [M] 0.55 0.411 0.409 (0.09) 0.616 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.2844
log(H/He) <-6.175 <-5.05
log(C/He)
log(Ca/He) <-6.28
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 2.76 (0.2) 2.83 (0.3) 2.76 2.83 (0.3)
Distance [pc] 362.63 (32) 352.98 (41) 394.00 362.63 352.98 (41)
Composition He
Proper motion (right ascension) [mas/yr] -3.482644861 (0.3) -3.093337094 (0.5) -3.093 (0.5)
Proper motion (declination) [mas/yr] -3.336578072 (0.2) -3.471720168 (0.4) -3.472 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 18.10 (0.3)
V magnitude
R magnitude 19.00 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.15 (0.02) 19.16 (0.02) 19.22 (0.03)
g magnitude 19.11 (0.01) 19.11 (0.01) 19.14 (0.02)
r magnitude 19.33 (0.01) 19.33 (0.01) 19.31 (0.02)
i magnitude 19.45 (0.02) 19.45 (0.02) 19.46 (0.02)
z magnitude 19.64 (0.07) 19.64 (0.07) 19.76 (0.09)
G magnitude 19.18 (0.03) 19.22 19.18 19.22 (0.003)
BP magnitude 19.27 (0.03) 19.19
RP magnitude 19.28 (0.04) 19.24
Pan g magnitude 19.14 (0.005)
Pan r magnitude 19.30 (0.01)
Pan i magnitude 19.50 (0.01)
Pan z magnitude 19.65 (0.03)
Pan y magnitude 19.78 (0.06)
E(B-V) 0.046

* 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.