All names: SDSS J140653.65+181445.0, Gaia DR3 1245445167566647936, GALEX J140653.7+181444, J1406+1814, SDSS J140653.67+181444.84, SDSS J140653.67+181444.8, Gaia EDR3 1245445167566647936, Gaia DR2 1245445167566647936
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Coutu et al. 2019 | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 06 53.67 (0.1) | 14 06 53.65 | 14 06 53.67 | 14 06 53.67 (0.2) | 14 06 53.67 | 14 06 53.64 (0.1) | |||||
| Declination | 18 14 44.71 (0.2) | 18 14 45.01 | 18 14 44.81 | 18 14 44.72 (0.2) | 18 14 44.71 | 18 14 45.07 (0.2) | |||||
| Spectral type | DZ | DZ | DZ | DZ | DZ | ||||||
| Effective temperature | [K] | 8664.0 (267) | 7434.0 (28) | 8718.0 (340) | |||||||
| log(g) | [cgs] | 8.12 | 8.00 (0) | 8.04 (0.07) | |||||||
| Mass | [M☉] | 0.6493 | 0.602 (0.06) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 1.0700 | |||||||||
| log(H/He) | <-5.2183 | ||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | -9.8552 (0.06) | -9.585 (0.03) | |||||||||
| 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] | 5.67 (0.2) | 5.95 | 5.95 (0.3) | 5.67 | 5.67 (0.2) | |||||
| Distance | [pc] | 176.50 (7) | 168.02 (9) | 168.02 (9) | 176.50 | 176.50 (7) | |||||
| Composition | He | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 29.43833715 (0.2) | 30.66265598 (0.7) | 29.438 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -22.57962048 (0.2) | -22.15701826 (0.6) | -22.58 (0.2) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.35 (0.03) | 19.33 (0.03) | 19.35 (0.03) | ||||||||
| g magnitude | 19.06 (0.009) | 19.06 (0.02) | 19.06 (0.009) | ||||||||
| r magnitude | 19.10 (0.01) | 19.09 (0.02) | 19.10 (0.01) | ||||||||
| i magnitude | 19.20 (0.01) | 19.20 (0.02) | 19.20 (0.01) | ||||||||
| z magnitude | 19.37 (0.06) | 19.33 (0.06) | 19.37 (0.06) | ||||||||
| G magnitude | 19.01 (0.03) | 19.04 | 19.01 | 19.01 (0.003) | |||||||
| BP magnitude | 19.17 (0.03) | 19.15 | |||||||||
| RP magnitude | 18.98 (0.03) | 18.90 | |||||||||
| Pan g magnitude | 19.03 (0.007) | ||||||||||
| Pan r magnitude | 19.07 (0.005) | ||||||||||
| Pan i magnitude | 19.18 (0.008) | ||||||||||
| Pan z magnitude | 19.31 (0.009) | ||||||||||
| Pan y magnitude | 19.44 (0.03) | ||||||||||
| E(B-V) | 0.017 | ||||||||||
* 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.