All names: 2MASS J03193824+3630295, GALEX J031938.3+363030, Gaia DR3 234469931207274112, WDJ031938.27+363029.67, TIC 178105913, Gaia DR2 234469931207274112, 03196+3630, LAMOST J031938.35+363029.7, Gaia EDR3 234469931207274112, PSO J049.9099+36.5083, J0319+3630, PM J03196+3630
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Coutu et al. 2019 | Blouin et al. 2019 | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 19 38.41 (0.05) | 03 19 38.41 (0.1) | 03 19 38.27 | 03 19 38.41 (0.1) | 03 19 38.41 | 03 19 38.27 (0.05) | 03 19 38.41 | |||||||
| Declination | 36 30 29.91 (0.04) | 36 30 29.90 (0.06) | 36 30 29.67 | 36 30 29.90 (0.06) | 36 30 29.91 | 36 30 29.67 (0.04) | 36 30 29.90 | |||||||
| Spectral type | DZ | DZ | DZ | DZ | DZ | DZ | DZ | DZ | ||||||
| Effective temperature | [K] | 6830.0 (71) | 6467.0 (29) | 6788.6 (39) | 6335.0 (307) | 6080.0 (80) | 5770.0 (234) | 6583.0 (44) | ||||||
| log(g) | [cgs] | 8.27 (0.03) | 8.15 (0.008) | 8.12 (0.02) | 8.12 | 8.10 (0.03) | 8.00 (0) | 8.16 (0.01) | ||||||
| Mass | [M☉] | 0.744 (0.02) | 0.67 (0.007) | 0.6442 | 0.634 (0.02) | 0.57 (0.1) | 0.673 (0.01) | |||||||
| log(Luminosity) | [L☉] | -3.80 | ||||||||||||
| Cooling age | [Gyr] | 2.7300 | 2.6400 | 3.0660 (0.3) | ||||||||||
| log(H/He) | -4.0 | <-3.1466 | ||||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | -9.26 | -9.3709 (0.1) | -9.2 | -10.2 | ||||||||||
| 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] | 31.17 (0.05) | 31.17 (0.05) | 31.20 (0.1) | 31.20 (0.1) | 31.20 | 31.20 (0.1) | 31.20 (0.1) | 31.17 | 31.17 (0.05) | 31.20 (0.1) | |||
| Distance | [pc] | 32.08 (0.06) | 32.08 (0.05) | 32.05 (0.1) | 32.05 (0.1) | 32.05 (0.1) | 32.05 (0.1) | 32.05 (0.1) | 29.90 (2) | 32.08 | 32.08 (0.06) | 32.05 (0.1) | ||
| Composition | He | He | He | He | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 108.7344983 (0.07) | 108.925 (0.1) | 108.734 (0.07) | 108.9245872 | |||||||||
| Proper motion (declination) | [mas/yr] | 15.02910332 (0.05) | 15.176 (0.1) | 15.029 (0.05) | 15.1757793 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 15.93 (0.01) | 15.84 (0.07) | 15.84 | 15.84 (0.07) | ||||||||||
| H magnitude | 15.84 (0.2) | 15.84 (0.2) | 15.84 | 15.84 (0.2) | ||||||||||
| K magnitude | 15.38 (0.2) | 15.38 (0.2) | 15.38 | 15.38 (0.2) | ||||||||||
| u magnitude | ||||||||||||||
| g magnitude | 16.46 (0.003) | |||||||||||||
| r magnitude | 16.32 (0.002) | |||||||||||||
| i magnitude | 16.38 (0.003) | |||||||||||||
| z magnitude | 16.48 (0.004) | |||||||||||||
| G magnitude | 16.33 (0.004) | 16.34 | 16.34 | 16.33 | 16.33 (0.003) | 16.34 | ||||||||
| BP magnitude | 16.53 (0.004) | 16.55 | 16.55 | |||||||||||
| RP magnitude | 16.04 (0.004) | 16.05 | 16.05 | |||||||||||
| Pan g magnitude | 16.46 (0.003) | 16.46 (0.003) | 16.46 (0.003) | |||||||||||
| Pan r magnitude | 16.33 (0.001) | 16.32 (0.002) | 16.32 (0.002) | |||||||||||
| Pan i magnitude | 16.38 (0.003) | 16.38 (0.003) | 16.38 (0.003) | |||||||||||
| Pan z magnitude | 16.48 (0.004) | 16.48 (0.004) | 16.48 (0.004) | |||||||||||
| Pan y magnitude | 16.53 (0.005) | 16.53 (0.006) | 16.53 (0.006) | |||||||||||
| E(B-V) | 0.000 | |||||||||||||
* 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.