All names: SBSS 1125+558, Gaia DR3 843291028702104448, LAMOST J112752.94+553521.9, SDSS J112752.95+553522.0, SDSS J112752.92+553522.0, WD 1125+558, Gaia DR2 843291028702104448, Gaia EDR3 843291028702104448
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD HE | Gaia DR2 | Stilism | Koester & Kepler 2015 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 11 27 52.92 (0.06) | 11 27 52.96 | 11 27 52.92 (0.07) | 11 27 52.92 | 11 27 52.97 (0.06) | 11 27 53.04 | ||||||
Declination | 55 35 22.10 (0.07) | 55 35 22.04 | 55 35 22.09 (0.08) | 55 35 22.10 | 55 35 22.04 (0.07) | 55 35 22.56 | ||||||
Spectral type | DB | DB | DB | DB | DB | |||||||
Effective temperature | [K] | 16818.0 | 19638.0 (89) | 16470.0 (447) | ||||||||
log(g) | [cgs] | 7.44 | 8.19 (0.02) | 7.50 (0.04) | ||||||||
Mass | [M☉] | 0.337 | 0.358 (0.02) | |||||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | 0.0695 | ||||||||||
log(H/He) | -4.17 (0.1) | |||||||||||
log(C/He) | ||||||||||||
log(Ca/He) | <-4.65 | |||||||||||
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] | 4.17 (0.1) | 3.88 (0.1) | 4.17 | 4.17 (0.1) | |||||||
Distance | [pc] | 239.85 (6) | 257.55 (8) | 176.00 | 239.85 | 239.85 (6) | ||||||
Composition | He | |||||||||||
Proper motion (right ascension) | [mas/yr] | -27.85855031 (0.08) | -27.61104209 (0.1) | -27.859 (0.08) | ||||||||
Proper motion (declination) | [mas/yr] | 3.807861123 (0.1) | 4.07273356 (0.2) | 3.808 (0.1) | ||||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | ||||||||||||
B magnitude | 16.50 | |||||||||||
V magnitude | ||||||||||||
R magnitude | ||||||||||||
I magnitude | ||||||||||||
J magnitude | ||||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 17.01 (0.007) | 17.01 (0.007) | ||||||||||
g magnitude | 17.07 (0.004) | 17.07 (0.004) | ||||||||||
r magnitude | 17.40 (0.005) | 17.40 (0.005) | ||||||||||
i magnitude | 17.65 (0.007) | 17.64 (0.007) | ||||||||||
z magnitude | 17.95 (0.02) | 17.95 (0.02) | ||||||||||
G magnitude | 17.24 (0.005) | 17.27 | 17.24 | 17.24 (0.003) | ||||||||
BP magnitude | 17.18 (0.005) | 17.12 | ||||||||||
RP magnitude | 17.36 (0.008) | 17.35 | ||||||||||
Pan g magnitude | 17.12 (0.007) | |||||||||||
Pan r magnitude | 17.42 (0.003) | |||||||||||
Pan i magnitude | 17.68 (0.003) | |||||||||||
Pan z magnitude | 17.92 (0.006) | |||||||||||
Pan y magnitude | 18.12 (0.02) | |||||||||||
E(B-V) | 0.019 |
* Constant surface field
Spectra without link are available upon request
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.