All names: TIC 389659549, 2MASS J21253028-4630373, EC 21221-4643, Gaia DR3 6575491133702739584, MCT 2122-4643, Gaia DR2 6575491133702739584, GALEX J212530.2-463037, WD 2122-467, Gaia EDR3 6575491133702739584, WDJ212530.24-463036.98, USNO-B1.0 0434-00777796
| Parameter | Unit | Gaia EDR3 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 25 30.37 (0.04) | 21 25 30.36 (0.05) | 21 25 30.37 | 21 25 30.24 (0.04) | 21 25 30.36 | 21 25 29.33 | ||||
| Declination | -46 30 37.32 (0.03) | -46 30 37.31 (0.05) | -46 30 37.32 | -46 30 36.98 (0.03) | -46 30 37.31 | -46 30 31.32 | ||||
| Spectral type | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 16131.0 (276) | 16334.0 (37) | 15656.0 (183) | ||||||
| log(g) | [cgs] | 8.28 (0.05) | 8.05 (0.008) | 8.16 (0.01) | ||||||
| Mass | [M☉] | 0.784 (0.03) | 0.71 (0.009) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.2603 | ||||||||
| 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] | 11.68 (0.05) | 11.63 (0.07) | 11.68 | 11.68 (0.05) | 11.63 (0.07) | ||||
| Distance | [pc] | 85.62 (0.4) | 85.00 | 86.00 (0.5) | 85.62 | 85.62 (0.4) | 86.00 (0.5) | |||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | 78.6795202 (0.05) | 78.63344092 (0.09) | 78.68 (0.05) | 78.63344092 | |||||
| Proper motion (declination) | [mas/yr] | -21.26527388 (0.04) | -21.09310248 (0.1) | -21.265 (0.04) | -21.09310248 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.13 | 16.15 | ||||||||
| V magnitude | 16.16 | |||||||||
| R magnitude | 16.00 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.59 (0.1) | |||||||||
| H magnitude | 16.08 (0.2) | |||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.14 (0.003) | 16.15 | 16.14 | 16.14 (0.003) | 16.15 | |||||
| BP magnitude | 16.09 (0.003) | 16.07 | 16.07 | |||||||
| RP magnitude | 16.26 (0.004) | 16.26 | 16.26 | |||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.005 | |||||||||
* 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.