All names: Gaia DR3 1035126803834023296, WIRED J081914.87+573258.0, GALEX J081914.8+573257, LP 89-174, SDSS J081914.89+573258.0, Gaia EDR3 1035126803834023296, NLTT 19272, SDSS J081914.89+573257.9, WDJ081914.97+573258.67, LSPM J0819+5733, Gaia DR2 1035126803834023296, SDSS J081914.88+573258.0, J0819+5732, USNO-B1.0 1475-00235568
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Coutu et al. 2019 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 19 14.66 (0.06) | 08 19 14.89 | 08 19 14.97 | 08 19 14.67 (0.08) | 08 19 14.66 | 08 19 14.97 (0.06) | 08 19 14.67 | 08 19 14.88 | ||||||
| Declination | 57 32 55.87 (0.06) | 57 32 57.96 | 57 32 58.67 | 57 32 55.96 (0.07) | 57 32 55.87 | 57 32 58.67 (0.06) | 57 32 55.96 | 57 32 58.03 | ||||||
| Spectral type | DZ | DZ | DZ | DZ | DZ | DZ | DZ | |||||||
| Effective temperature | [K] | 6075.0 (33) | 6055.0 (28) | 6074.0 (80) | 6420.0 (51) | 6300.0 (4) | ||||||||
| log(g) | [cgs] | 7.98 (0.01) | 7.98 (0.01) | 7.99 | 8.16 (0.01) | 10.00 (0.003) | ||||||||
| Mass | [M☉] | 0.562 (0.009) | 0.56 (0.009) | 0.5634 | 0.673 (0.01) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 2.3700 | 2.3500 | |||||||||||
| log(H/He) | -3.0 | -3.0 | <-3.036 | |||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | -11.11 | -11.12 | -11.096 (0.1) | |||||||||||
| 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] | 18.32 (0.09) | 18.35 (0.1) | 18.35 | 18.35 (0.1) | 18.32 | 18.32 (0.09) | 18.35 (0.1) | ||||||
| Distance | [pc] | 54.59 (0.3) | 54.50 (0.3) | 54.49 (0.3) | 54.49 (0.3) | 54.59 | 54.59 (0.3) | 54.49 (0.3) | ||||||
| Composition | He | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -156.6010959 (0.06) | -156.308731 (0.2) | -156.601 (0.06) | -156.308731 | |||||||||
| Proper motion (declination) | [mas/yr] | -174.9794909 (0.07) | -174.8010301 (0.1) | -174.979 (0.07) | -174.8010301 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 17.50 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 17.40 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.94 (0.02) | |||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.61 (0.02) | 18.61 (0.02) | 18.61 (0.02) | 18.61 (0.02) | 18.58 (0.03) | |||||||||
| g magnitude | 17.88 (0.006) | 17.88 (0.006) | 17.88 (0.006) | 17.91 (0.02) | ||||||||||
| r magnitude | 17.59 (0.006) | 17.59 (0.006) | 17.59 (0.006) | 17.59 (0.02) | ||||||||||
| i magnitude | 17.55 (0.006) | 17.55 (0.006) | 17.55 (0.006) | 17.56 (0.02) | ||||||||||
| z magnitude | 17.53 (0.02) | 17.53 (0.02) | 17.53 (0.02) | 17.54 (0.03) | ||||||||||
| G magnitude | 17.60 (0.008) | 17.62 | 17.60 | 17.60 (0.003) | 17.62 | |||||||||
| BP magnitude | 17.83 (0.008) | 17.83 | 17.83 | |||||||||||
| RP magnitude | 17.22 (0.006) | 17.23 | 17.23 | |||||||||||
| Pan g magnitude | 17.83 (0.005) | 17.83 (0.004) | ||||||||||||
| Pan r magnitude | 17.60 (0.005) | 17.60 (0.004) | ||||||||||||
| Pan i magnitude | 17.55 (0.004) | 17.55 (0.004) | ||||||||||||
| Pan z magnitude | 17.57 (0.008) | 17.57 (0.009) | ||||||||||||
| Pan y magnitude | 17.66 (0.01) | 17.66 (0.01) | ||||||||||||
| E(B-V) | 0.001 | |||||||||||||
* 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.