All names: SDSS J150346.99+295651.0, Gaia EDR3 1275981324189764608, WDJ150347.02+295650.62, WD 1501+301, ** LDS 4525B, Gaia DR3 1275981324189764608, GALEX J150346.9+295651, LP 326-74, WDS J15039+2957B, Gaia DR2 1275981324189764608, SDSS J150346.99+295650.9, J1503+2956
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Tremblay et al. 2017 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 15 03 46.91 (0.04) | 15 03 46.99 | 15 03 46.91 (0.05) | 15 03 46.91 | 15 03 47.02 (0.04) | 15 03 46.91 | 15 03 54.12 | |||||||||
Declination | 29 56 52.13 (0.06) | 29 56 51.01 | 29 56 52.08 (0.07) | 29 56 52.13 | 29 56 50.62 (0.06) | 29 56 52.08 | 29 56 20.40 | |||||||||
Spectral type | DC | DC | DC | DC | DC | DC | DB | DB | DC | |||||||
Effective temperature | [K] | 6946.0 (40) | 6981.0 (37) | 7514.0 | 7244.0 | 7250.0 | 6932.0 (62) | |||||||||
log(g) | [cgs] | 7.64 (0.01) | 7.64 (0.01) | 7.92 | 7.81 | (21) | 7.66 (0.02) | |||||||||
Mass | [M☉] | 0.384 (0.009) | 0.384 (0.01) | 0.549 | 0.469 | 0.395 (0.01) | ||||||||||
log(Luminosity) | [L☉] | |||||||||||||||
Cooling age | [Gyr] | 1.0400 | 1.1390 | 1.1270 | ||||||||||||
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] | 11.99 (0.09) | 11.89 (0.1) | 11.89 (0.1) | 12.56 (0.8) | 11.99 | 11.99 (0.09) | 11.89 (0.1) | ||||||||
Distance | [pc] | 83.39 (0.6) | 84.10 (0.8) | 84.13 (0.8) | 79.62 (5) | 83.39 | 83.39 (0.6) | 84.13 (0.8) | ||||||||
Composition | He | |||||||||||||||
Proper motion (right ascension) | [mas/yr] | -86.12185449 (0.05) | -86.0110134 (0.1) | -86.122 (0.05) | -86.0110134 | |||||||||||
Proper motion (declination) | [mas/yr] | 94.27780667 (0.07) | 94.35148549 (0.2) | 94.278 (0.07) | 94.35148549 | |||||||||||
Variability | ||||||||||||||||
Magnetic | ||||||||||||||||
Bd | [MG] | |||||||||||||||
Infrared excess (disk) | ||||||||||||||||
Binarity | yes | |||||||||||||||
B magnitude | ||||||||||||||||
V magnitude | 17.70 (0.1) | |||||||||||||||
R magnitude | ||||||||||||||||
I magnitude | ||||||||||||||||
J magnitude | 17.22 (0.03) | |||||||||||||||
H magnitude | ||||||||||||||||
K magnitude | ||||||||||||||||
u magnitude | 18.34 (0.01) | 18.34 (0.01) | 18.33 (0.01) | 18.33 (0.01) | ||||||||||||
g magnitude | 17.84 (0.006) | 17.84 (0.006) | 17.86 (0.006) | |||||||||||||
r magnitude | 17.72 (0.006) | 17.71 (0.006) | 17.72 (0.007) | |||||||||||||
i magnitude | 17.72 (0.007) | 17.72 (0.007) | 17.73 (0.007) | |||||||||||||
z magnitude | 17.79 (0.02) | 17.79 (0.02) | 17.84 (0.02) | |||||||||||||
G magnitude | 17.69 (0.006) | 17.71 | 17.65 (0.001) | 17.69 | 17.69 (0.003) | 17.71 | ||||||||||
BP magnitude | 17.86 (0.006) | 17.85 | 17.85 | |||||||||||||
RP magnitude | 17.41 (0.006) | 17.41 | 17.41 | |||||||||||||
Pan g magnitude | 17.84 (0.004) | 17.84 (0.005) | ||||||||||||||
Pan r magnitude | 17.72 (0.002) | 17.72 (0.002) | ||||||||||||||
Pan i magnitude | 17.73 (0.002) | 17.73 (0.002) | ||||||||||||||
Pan z magnitude | 17.80 (0.01) | 17.80 (0.01) | ||||||||||||||
Pan y magnitude | 17.86 (0.01) | 17.86 (0.01) | ||||||||||||||
E(B-V) | 0.013 |
* 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.