All names: SDSS J150119.73+560914.7, Gaia DR3 1612720366646956928, Gaia EDR3 1612720366646956928, Gaia DR2 1612720366646956928, SDSS J150119.76+560914.5, GALEX J150119.7+560914, J1501+5609, SDSS J150119.76+560914.52
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Coutu et al. 2019 | Gaia DR2 | Stilism | Kepler et al. 2016 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 01 19.78 (0.07) | 15 01 19.73 | 15 01 19.76 | 15 01 19.77 (0.1) | 15 01 19.78 | 15 01 19.70 (0.07) | ||||
| Declination | 56 09 14.40 (0.06) | 56 09 14.75 | 56 09 14.52 | 56 09 14.42 (0.09) | 56 09 14.40 | 56 09 15.02 (0.06) | ||||
| Spectral type | DZ | DZ | DZ | DZ | DZ | |||||
| Effective temperature | [K] | 9471.0 (266) | 8602.0 (31) | 9290.0 (158) | ||||||
| log(g) | [cgs] | 8.20 | 8.00 (0) | 7.97 (0.03) | ||||||
| Mass | [M☉] | 0.7045 | 0.562 (0.02) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.9660 | ||||||||
| log(H/He) | <-5.717 | |||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | -7.9888 (0.06) | -8.392999999999999 | ||||||||
| 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] | 9.53 (0.07) | 9.53 | 9.53 (0.1) | 9.53 | 9.53 (0.07) | ||||
| Distance | [pc] | 104.99 (0.8) | 104.88 (1) | 104.88 (1) | 104.99 | 104.99 (0.8) | ||||
| Composition | He | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | 41.30471968 (0.08) | 41.7601644 (0.2) | 41.305 (0.08) | ||||||
| Proper motion (declination) | [mas/yr] | -38.2148386 (0.08) | -38.60908662 (0.2) | -38.215 (0.08) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 17.89 (0.01) | 17.94 (0.02) | 17.91 (0.01) | |||||||
| g magnitude | 17.60 (0.005) | 17.64 (0.02) | 17.61 (0.005) | |||||||
| r magnitude | 17.67 (0.006) | 17.74 (0.09) | 17.67 (0.006) | |||||||
| i magnitude | 17.82 (0.008) | 17.89 (0.2) | 17.82 (0.008) | |||||||
| z magnitude | 18.07 (0.02) | 18.15 (0.03) | 18.08 (0.02) | |||||||
| G magnitude | 17.66 (0.008) | 17.70 | 17.66 | 17.66 (0.003) | ||||||
| BP magnitude | 17.70 (0.008) | 17.66 | ||||||||
| RP magnitude | 17.49 (0.01) | 17.43 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.011 | |||||||||
* 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.