All names: WDJ192359.24+214103.62, Gaia EDR3 2018864362679341824, TIC 358581268, J1923+2141, UCAC4 559-091178, Gaia DR2 2018864362679341824, 2MASS J19235920+2141041, Gaia DR3 2018864362679341824
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Tremblay et al. 2020 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 19 23 59.28 (0.1) | 19 23 59.28 (0.09) | 19 23 59.28 | 19 23 59.24 (0.1) | 19 23 59.28 | |||||
| Declination | 21 41 02.33 (0.2) | 21 41 02.36 (0.1) | 21 41 02.33 | 21 41 03.55 (0.2) | 21 41 02.36 | |||||
| Spectral type | DA | DA | DA | DA | DA | DA | ||||
| Effective temperature | [K] | 8773.0 (109) | 8659.0 (40) | 8749.2 (53) | 8750.0 (50) | 8994.0 (28) | ||||
| log(g) | [cgs] | 7.52 (0.04) | 7.45 (0.01) | 7.55 (0.02) | 7.55 (0.02) | 7.52 (0.01) | ||||
| Mass | [M☉] | 0.384 (0.01) | 0.33 (0.007) | 0.36 (0.007) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.4800 | ||||||||
| 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] | 28.20 (0.2) | 28.20 (0.2) | 28.20 (0.2) | 28.73 (0.2) | 28.20 | 28.20 (0.2) | 28.73 (0.2) | ||
| Distance | [pc] | 35.46 (0.3) | 35.46 (0.3) | 35.46 (0.3) | 34.81 (0.2) | 35.46 | 35.46 (0.3) | 34.81 (0.2) | ||
| Composition | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 40.05951839 (0.2) | 40.06 (0.2) | 38.11182895 | ||||||
| Proper motion (declination) | [mas/yr] | -76.41774896 (0.3) | -76.418 (0.3) | -81.25232235 | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | 14.79 (0.1) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 14.32 (0.06) | 14.32 (0.06) | ||||||||
| H magnitude | 14.19 (0.05) | 14.19 (0.05) | ||||||||
| K magnitude | 14.29 (0.07) | 14.29 (0.07) | ||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 14.66 (0.002) | 14.66 | 14.66 | 14.66 (0.003) | 14.66 | |||||
| BP magnitude | 14.72 (0.002) | 14.72 | ||||||||
| RP magnitude | 14.42 (0.006) | 14.42 | ||||||||
| Pan g magnitude | 14.71 (0.002) | |||||||||
| Pan r magnitude | 14.72 (0.002) | |||||||||
| Pan i magnitude | 14.81 (0.003) | |||||||||
| Pan z magnitude | 14.93 (0.01) | |||||||||
| Pan y magnitude | 15.04 (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.