All names: WDJ02514.91+292522.86, SDSS J025104.96+292522.4, SDSS J025104.95+292522.3, Gaia DR2 128826375813389568, J0251+2925, WDJ025104.91+292522.86, Gaia EDR3 128826375813389568, Gaia DR3 128826375813389568
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 02 51 04.99 (0.2) | 02 51 04.99 | 02 51 04.99 | 02 51 04.91 (0.2) | 02 51 04.99 | ||||||||
Declination | 29 25 22.10 (0.1) | 29 25 22.13 | 29 25 22.10 | 29 25 22.86 (0.1) | 29 25 22.13 | ||||||||
Spectral type | DC | DC | DC | DA: | DC | ||||||||
Effective temperature | [K] | 6814.0 (46) | 6923.0 (46) | 6814.0 (46) | 7334.0 | 7064.0 | 7228.0 (180) | ||||||
log(g) | [cgs] | 8.06 (0.02) | 8.12 (0.02) | 8.09 (0.02) | 8.33 | 8.23 | 8.25 (0.04) | ||||||
Mass | [M☉] | 0.612 (0.02) | 0.65 (0.02) | 0.628 (0.02) | 0.801 | 0.72 | 0.749 (0.04) | ||||||
log(Luminosity) | [L☉] | ||||||||||||
Cooling age | [Gyr] | 1.9800 | 2.6090 | 2.3990 | |||||||||
log(H/He) | -3.4 | -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] | 11.97 (0.2) | 12.17 (0.2) | 12.17 (0.2) | 11.97 | 11.97 (0.2) | 12.17 (0.2) | ||||||
Distance | [pc] | 83.53 (1) | 82.17 (2) | 82.14 (2) | 83.53 | 83.53 (1) | 82.14 (2) | ||||||
Composition | He | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 66.29787622 (0.2) | 66.16926408 (0.5) | 66.298 (0.2) | 66.16926408 | ||||||||
Proper motion (declination) | [mas/yr] | -47.55280485 (0.2) | -47.51346941 (0.4) | -47.553 (0.2) | -47.51346941 | ||||||||
Variability | |||||||||||||
Magnetic | |||||||||||||
Bd | [MG] | ||||||||||||
Infrared excess (disk) | |||||||||||||
Binarity | |||||||||||||
B magnitude | |||||||||||||
V magnitude | |||||||||||||
R magnitude | |||||||||||||
I magnitude | |||||||||||||
J magnitude | 17.82 (0.04) | ||||||||||||
H magnitude | |||||||||||||
K magnitude | |||||||||||||
u magnitude | 18.95 (0.02) | 18.97 (0.02) | 18.97 (0.02) | ||||||||||
g magnitude | 18.49 (0.008) | 18.49 (0.008) | |||||||||||
r magnitude | 18.39 (0.009) | 18.39 (0.009) | |||||||||||
i magnitude | 18.29 (0.01) | 18.29 (0.01) | |||||||||||
z magnitude | 18.34 (0.03) | 18.34 (0.03) | |||||||||||
G magnitude | 18.31 (0.02) | 18.33 | 18.31 | 18.31 (0.003) | 18.33 | ||||||||
BP magnitude | 18.48 (0.02) | 18.48 | 18.48 | ||||||||||
RP magnitude | 17.99 (0.02) | 17.99 | 17.99 | ||||||||||
Pan g magnitude | 18.48 (0.007) | 18.48 (0.006) | |||||||||||
Pan r magnitude | 18.34 (0.005) | 18.34 (0.005) | |||||||||||
Pan i magnitude | 18.33 (0.004) | 18.33 (0.003) | |||||||||||
Pan z magnitude | 18.39 (0.01) | 18.39 (0.01) | |||||||||||
Pan y magnitude | 18.48 (0.02) | 18.48 (0.02) | |||||||||||
E(B-V) | 0.004 |
* 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.