SDSS J144119.74+512719.2

All names: Gaia DR2 1604085008481878016, WD 1439+516, GALEX J144119.7+512719, SDSS J144119.74+512719.2, SDSS J144119.75+512719.1, SDSS J144119.74+512719.1, Gaia EDR3 1604085008481878016, SDSS J144119.75+512719.2, Gaia DR3 1604085008481878016

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 41 19.71 (0.09) 14 41 19.75 14 41 19.71 (0.1) 14 41 19.71 14 41 19.75 (0.09) 14 41 19.75 14 41 19.54 14 41 19.75
Declination 51 27 19.50 (0.1) 51 27 19.26 51 27 19.49 (0.1) 51 27 19.50 51 27 19.17 (0.1) 51 27 19.20 51 27 14.04 51 27 19.19
Spectral type DB_A: DB DBA DB_A: DB DBA:H:M: DB+MS
Effective temperature [K] 14436.0 15783.0 (92) 17435.0 (1435) 16650.0 (154) 16113.0 (170)
log(g) [cgs] 7.88 8.00 (0) 8.18 (0.1) 8.39 (0.09) 8.33 (0.1)
Mass [M] 0.524 0.701 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.1869
log(H/He) -4.84 (0.4)
log(C/He)
log(Ca/He) <-6.79
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] 3.70 (0.1) 3.62 (0.1) 3.70 3.70 (0.1)
Distance [pc] 270.55 (8) 276.62 (10) 274.00 270.55 270.55 (8)
Composition He
Proper motion (right ascension) [mas/yr] -26.06735792 (0.1) -26.14533452 (0.2) -26.067 (0.1) -20.9
Proper motion (declination) [mas/yr] 21.11511765 (0.1) 21.37810915 (0.2) 21.115 (0.1) 17.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.16 (0.01) 18.16 (0.01) 18.14 (0.02) 18.14 18.15 (0.02)
g magnitude 18.22 (0.007) 18.22 (0.007) 18.21 (0.02) 18.21 18.21 (0.02)
r magnitude 18.54 (0.009) 18.54 (0.009) 18.55 (0.02) 18.54 18.55 (0.02)
i magnitude 18.77 (0.01) 18.77 (0.01) 18.76 (0.02) 18.76 18.77 (0.02)
z magnitude 19.10 (0.04) 19.10 (0.04) 19.11 (0.04) 19.11 19.11 (0.04)
G magnitude 18.38 (0.02) 18.42 18.38 18.38 (0.003)
BP magnitude 18.30 (0.02) 18.30
RP magnitude 18.53 (0.03) 18.45
Pan g magnitude 18.30 (0.005)
Pan r magnitude 18.55 (0.005)
Pan i magnitude 18.81 (0.005)
Pan z magnitude 19.02 (0.01)
Pan y magnitude 19.17 (0.02)
E(B-V) 0.019

* 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.