All names: Gaia DR2 5122240020833180416, MCT 0154-2405, GALEX J015711.9-235122, GD 1509, WD 0154-240, Gaia DR3 5122240020833180416, USNO-B1.0 0661-00022000, Gaia EDR3 5122240020833180416, PHL 1248
| Parameter | Unit | Gaia EDR3 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 57 11.95 (0.05) | 01 57 11.95 (0.06) | 01 57 11.95 | 01 57 11.94 (0.05) | 01 57 11.35 | ||||
| Declination | -23 51 23.22 (0.05) | -23 51 23.22 (0.06) | -23 51 23.22 | -23 51 23.14 (0.05) | -23 51 17.28 | ||||
| Spectral type | DA | DA | DA: | DA.7 | DA1 | ||||
| Effective temperature | [K] | 76422.0 (3538) | 74560.0 (2206) | ||||||
| log(g) | [cgs] | 7.46 (0.2) | 7.85 (0.09) | ||||||
| Mass | [M☉] | 0.553 (0.05) | 0.68 (0.04) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.0002 | |||||||
| 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] | 1.83 (0.07) | 1.86 (0.09) | 1.83 | 1.83 (0.07) | ||||
| Distance | [pc] | 545.57 (21) | 545.00 | 537.76 (27) | 381.00 | 545.57 | 545.58 (21) | ||
| Composition | H | H | |||||||
| Proper motion (right ascension) | [mas/yr] | 9.850790035 (0.07) | 10.07727948 (0.2) | 9.851 (0.07) | |||||
| Proper motion (declination) | [mas/yr] | -5.196050533 (0.06) | -4.974124988 (0.1) | -5.196 (0.06) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 17.10 | ||||||||
| V magnitude | |||||||||
| R magnitude | 16.90 | ||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 16.66 (0.004) | 16.69 | 16.66 | 16.66 (0.003) | |||||
| BP magnitude | 16.49 (0.004) | 16.41 | |||||||
| RP magnitude | 17.01 (0.006) | 17.00 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.012 | ||||||||
* 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.