SDSS J221955.26+135344.2

All names: WDJ221955.26+135344.33, SDSS J221955.26+135344.2, SDSS J221955.26+135344.3, GALEX J221955.3+135343, SDSS J221955.27+135344.3, J2219+1353, Gaia DR2 2734163982926890624, Gaia EDR3 2734163982926890624, Gaia DR3 2734163982926890624, WD 2217+136

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 22 19 55.38 (0.2) 22 19 55.27 22 19 55.38 (0.3) 22 19 55.38 22 19 55.26 (0.2) 22 19 55.38 22 19 55.27 22 19 54.77 22 19 55.26
Declination 13 53 43.18 (0.2) 13 53 44.28 13 53 43.21 (0.3) 13 53 43.18 13 53 44.34 (0.2) 13 53 43.21 13 53 44.25 13 53 42.00 13 53 44.31
Spectral type DC DC DC DC DC DC+M DC DC DC DCM DC
Effective temperature [K] 6908.0 (60) 6876.0 (59) 7481.0 7197.0 6958.0 (276) 10082.0 (10) 10094.0 (28)
log(g) [cgs] 8.16 (0.04) 8.10 (0.04) 8.36 8.26 8.23 (0.07) 8.53 (0.4) 9.48 (0.4)
Mass [M] 0.676 (0.03) 0.637 (0.04) 0.824 0.743 0.719 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 1.9500 2.6410 2.4370
log(H/He) -3.4 -3.4
log(C/He)
log(Ca/He)
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] 10.49 (0.3) 10.15 (0.4) 10.15 (0.4) 10.49 10.49 (0.3) 10.15 (0.4)
Distance [pc] 95.34 (3) 98.52 (4) 98.56 (4) 95.34 95.34 (3) 98.56 (4)
Composition He
Proper motion (right ascension) [mas/yr] 111.3383126 (0.3) 111.0843284 (0.4) 111.338 (0.3) 111.084 111.9
Proper motion (declination) [mas/yr] -72.56218104 (0.4) -72.05384497 (0.5) -72.562 (0.4) -72.054 -79.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.36 (0.03) 19.37 (0.03) 19.36 (0.03) 19.36 (0.03) 19.35 (0.03) 19.34 19.34 (0.03)
g magnitude 18.85 (0.009) 18.85 (0.009) 18.85 (0.009) 18.86 (0.02) 18.85 18.85 (0.02)
r magnitude 18.71 (0.01) 18.71 (0.01) 18.71 (0.01) 18.72 (0.01) 18.71 18.70 (0.01)
i magnitude 18.71 (0.01) 18.70 (0.01) 18.70 (0.01) 18.72 (0.02) 18.71 18.71 (0.02)
z magnitude 18.76 (0.04) 18.76 (0.04) 18.76 (0.04) 18.75 (0.04) 18.74 18.75 (0.04)
G magnitude 18.69 (0.03) 18.72 18.69 18.69 (0.004) 18.72
BP magnitude 18.84 (0.03) 18.83 18.83
RP magnitude 18.45 (0.03) 18.43 18.43
Pan g magnitude 18.84 (0.008) 18.84 (0.007)
Pan r magnitude 18.73 (0.007) 18.73 (0.007)
Pan i magnitude 18.75 (0.005) 18.75 (0.005)
Pan z magnitude 18.77 (0.02) 18.77 (0.02)
Pan y magnitude 18.87 (0.02) 18.87 (0.02)
E(B-V) 0.009

* 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.