All names: WD 1912+143, G142-020, J1914+1428, NLTT 47570, PSO J288.6495+14.4722, GJ 2145, LSPM J1914+1428, 19146+1428, WDJ191435.99+142825.88, PM J19146+1428, Gaia DR3 4320303621677848832, 1912+143, Gaia EDR3 4320303621677848832, G 142-20, USNO 559, PLX 4484.11, GEN# +9.80142020, USNO-B1.0 1044-00443642, Gaia DR2 4320303621677848832
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | Leggett et al. 2018 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 19 14 35.88 (0.04) | 19 14 35.89 (0.05) | 19 14 35.89 (0.05) | 19 14 35.88 | 19 14 35.99 (0.04) | 19 14 35.89 | 19 14 35.47 | |||||||||||
| Declination | 14 28 19.56 (0.04) | 14 28 19.76 (0.05) | 14 28 19.76 (0.05) | 14 28 19.56 | 14 28 25.88 (0.04) | 14 28 19.76 | 14 28 21.72 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA7.3 | DA | DA | DA | DA | DA | ||||||||
| Effective temperature | [K] | 6842.0 (55) | 6952.0 (41) | 6729.4 (49) | 6800.0 (50) | 6916.0 (126) | 6810.0 | 6552.0 | 6941.0 (113) | 7050.0 (126) | 6759.0 (41) | |||||||
| log(g) | [cgs] | 8.16 (0.02) | 8.22 (0.009) | 8.13 (0.02) | 8.17 (0.02) | 8.22 (0.03) | 8.17 | 8.05 | 8.55 (0.2) | 8.68 (0.1) | 8.14 (0.01) | |||||||
| Mass | [M☉] | 0.692 (0.01) | 0.727 (0.008) | 0.697 (0.01) | 0.732 (0.02) | 0.696 | 0.604 | 0.94 (0.1) | 1.03 (0.09) | 0.679 (0.01) | ||||||||
| log(Luminosity) | [L☉] | -3.89 | ||||||||||||||||
| Cooling age | [Gyr] | 2.3800 | 2.2400 (0.1) | 2.3990 (0.2) | 2.2140 | 2.0040 | 3.8800 | |||||||||||
| log(H/He) | ||||||||||||||||||
| log(C/He) | ||||||||||||||||||
| log(Ca/He) | ||||||||||||||||||
| log(Ca/H) | ||||||||||||||||||
| log(C/H) | ||||||||||||||||||
| log(N/H) | ||||||||||||||||||
| log(O/H) | ||||||||||||||||||
| log(Na/H) | ||||||||||||||||||
| log(Mg/H) | ||||||||||||||||||
| log(Al/H) | ||||||||||||||||||
| log(Si/H) | ||||||||||||||||||
| log(P/H) | ||||||||||||||||||
| log(S/H) | ||||||||||||||||||
| log(Sc/H) | ||||||||||||||||||
| log(Ti/H) | ||||||||||||||||||
| log(Cr/H) | ||||||||||||||||||
| log(Mn/H) | ||||||||||||||||||
| log(Fe/H) | ||||||||||||||||||
| log(Ni/H) | ||||||||||||||||||
| Parallax | [mas] | 25.56 (0.05) | 25.56 (0.05) | 25.50 (0.06) | 25.50 (0.06) | 25.50 (0.06) | 25.87 (0.3) | 25.50 (0.06) | 28.60 (5) | 28.60 (5) | 25.56 | 25.56 (0.05) | 25.50 (0.06) | |||||
| Distance | [pc] | 39.12 (0.08) | 39.12 (0.08) | 39.22 (0.09) | 39.22 (0.1) | 39.22 (0.1) | 38.65 (0.4) | 39.22 (0.1) | 19.97 (2) | 35.00 (5) | 39.12 | 39.12 (0.08) | 39.22 (0.1) | |||||
| Composition | H | H | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -97.083817 (0.05) | -97.079 (0.1) | -97.084 (0.05) | -97.07889632 | |||||||||||||
| Proper motion (declination) | [mas/yr] | -395.1571236 (0.04) | -395.045 (0.1) | -395.157 (0.04) | -395.0448308 | |||||||||||||
| Variability | ||||||||||||||||||
| Magnetic | ||||||||||||||||||
| Bd | [MG] | |||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||
| Binarity | ||||||||||||||||||
| B magnitude | 16.50 | |||||||||||||||||
| V magnitude | 16.03 | |||||||||||||||||
| R magnitude | ||||||||||||||||||
| I magnitude | ||||||||||||||||||
| J magnitude | 16.02 (0.01) | 15.84 (0.08) | 15.26 | |||||||||||||||
| H magnitude | 15.87 (0.01) | 15.24 (0.09) | 14.92 | |||||||||||||||
| K magnitude | 15.85 (0.03) | 15.03 (0.1) | 14.78 | |||||||||||||||
| u magnitude | ||||||||||||||||||
| g magnitude | 16.94 (0.007) | |||||||||||||||||
| r magnitude | 16.76 (0.009) | |||||||||||||||||
| i magnitude | 16.71 (0.004) | |||||||||||||||||
| z magnitude | 16.73 (0.008) | |||||||||||||||||
| G magnitude | 16.71 (0.003) | 16.72 | 16.72 | 16.71 | 16.71 (0.003) | 16.72 | ||||||||||||
| BP magnitude | 16.92 (0.003) | 16.91 | 16.91 | |||||||||||||||
| RP magnitude | 16.36 (0.003) | 16.35 | 16.35 | |||||||||||||||
| Pan g magnitude | 16.94 (0.003) | 16.94 (0.007) | 16.94 (0.007) | |||||||||||||||
| Pan r magnitude | 16.76 (0.003) | 16.76 (0.009) | 16.76 (0.009) | |||||||||||||||
| Pan i magnitude | 16.71 (0.005) | 16.71 (0.004) | 16.71 (0.004) | |||||||||||||||
| Pan z magnitude | 16.74 (0.005) | 16.73 (0.008) | 16.73 (0.008) | |||||||||||||||
| Pan y magnitude | 16.77 (0.009) | 16.78 (0.02) | 16.78 (0.01) | |||||||||||||||
| E(B-V) | 0.002 | |||||||||||||||||
* 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.