All names: USNO-A2.0 1425-07175535, SDSS J083317.40+531335.50, SDSS J083317.40+531335.4, Gaia DR3 1028779636740111872, Gaia DR2 1028779636740111872, SDSS J083317.39+531335.4, SDSS J083317.40+531335.5, Gaia EDR3 1028779636740111872, GALEX 2420616767487353266
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | MWDD HE | Gaia DR2 | Stilism | Koester & Kepler 2015 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 33 17.36 (0.2) | 08 33 17.40 | 08 33 17.36 (0.3) | 08 33 17.40 (0.3) | 08 33 17.40 | |||||||
Declination | 53 13 35.15 (0.2) | 53 13 35.48 | 53 13 35.16 (0.2) | 53 13 35.46 (0.2) | 53 13 35.49 | |||||||
Spectral type | DB:DC | DAB | DB:DC | DA | ||||||||
Effective temperature | [K] | 11857.0 | 11913.0 | 11525.0 (129) | 12195.0 (384) | |||||||
log(g) | [cgs] | 8.12 | 8.41 | 8.00 (0) | 8.84 (0.3) | |||||||
Mass | [M☉] | 0.66 | 0.844 | |||||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | 0.7208 | ||||||||||
log(H/He) | -4.824 | -5.01 (0.2) | ||||||||||
log(C/He) | ||||||||||||
log(Ca/He) | <-10.2 | |||||||||||
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] | 4.57 (0.2) | 5.08 (0.3) | 5.08 (0.3) | ||||||||
Distance | [pc] | 218.76 (11) | 196.83 (13) | 241.00 | 196.83 (13) | |||||||
Composition | He | |||||||||||
Proper motion (right ascension) | [mas/yr] | -24.78803951 (0.2) | -24.29750993 (0.5) | -24.298 (0.5) | ||||||||
Proper motion (declination) | [mas/yr] | -19.37624374 (0.2) | -19.63300456 (0.5) | -19.633 (0.5) | ||||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | ||||||||||||
B magnitude | 18.10 (0.3) | |||||||||||
V magnitude | ||||||||||||
R magnitude | 18.90 (0.3) | |||||||||||
I magnitude | ||||||||||||
J magnitude | ||||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 18.87 (0.02) | 18.86 (0.02) | 18.88 (0.02) | |||||||||
g magnitude | 18.81 (0.009) | 18.81 (0.009) | 18.82 (0.03) | |||||||||
r magnitude | 19.01 (0.01) | 19.02 (0.01) | 19.02 (0.02) | |||||||||
i magnitude | 19.18 (0.02) | 19.18 (0.02) | 19.17 (0.02) | |||||||||
z magnitude | 19.50 (0.08) | 19.50 (0.08) | 19.50 (0.09) | |||||||||
G magnitude | 18.90 (0.04) | 18.94 | 18.94 (0.003) | |||||||||
BP magnitude | 18.96 (0.04) | 18.86 | ||||||||||
RP magnitude | 19.10 (0.06) | 18.92 | ||||||||||
Pan g magnitude | 18.84 (0.008) | |||||||||||
Pan r magnitude | 19.04 (0.01) | |||||||||||
Pan i magnitude | 19.24 (0.007) | |||||||||||
Pan z magnitude | 19.40 (0.02) | |||||||||||
Pan y magnitude | 19.49 (0.05) | |||||||||||
E(B-V) | 0.012 |
* 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.