All names: HE 0122-2244, TIC 439490708, WDJ012444.74-222906.88, Gaia DR2 5043015122810735744, KUV 01223-2245, Gaia EDR3 5043015122810735744, USNO-A2.0 0675-00508905, 2MASS J01244471-2229066, J0124-2229, GALEX J012444.7-222907, WD 0122-227, Gaia DR3 5043015122810735744
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 24 44.80 (0.05) | 01 24 44.80 (0.06) | 01 24 44.80 | 01 24 44.74 (0.05) | 01 24 44.80 | 01 24 44.83 | ||||
| Declination | -22 29 07.18 (0.04) | -22 29 07.17 (0.06) | -22 29 07.18 | -22 29 06.88 (0.04) | -22 29 07.17 | -22 29 05.28 | ||||
| Spectral type | DZ | DZ | DZ | DZ5.0 | ||||||
| Effective temperature | [K] | 9145.0 (116) | 9135.0 (92) | |||||||
| log(g) | [cgs] | 8.19 (0.01) | 8.16 (0.01) | |||||||
| Mass | [M☉] | 0.694 (0.01) | 0.68 (0.01) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 1.0700 | ||||||||
| log(H/He) | -4.0 | |||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | -9.4 | |||||||||
| 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] | 15.49 (0.07) | 15.58 (0.09) | 15.58 (0.09) | 15.49 | 15.49 (0.07) | 15.58 (0.09) | |||
| Distance | [pc] | 64.54 (0.3) | 64.18 (0.4) | 64.19 (0.4) | 64.54 | 64.54 (0.3) | 64.19 (0.4) | |||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 57.77860169 (0.08) | 57.80226502 (0.2) | 57.779 (0.08) | 57.80226502 | |||||
| Proper motion (declination) | [mas/yr] | -18.51286506 (0.05) | -18.47450587 (0.1) | -18.513 (0.06) | -18.47450587 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 17.00 | |||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.83 (0.01) | 16.66 (0.1) | ||||||||
| H magnitude | 16.82 (0.05) | 16.82 | ||||||||
| K magnitude | 16.80 (0.05) | 16.83 | ||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.89 (0.004) | 16.91 | 16.89 | 16.89 (0.003) | 16.91 | |||||
| BP magnitude | 16.93 (0.004) | 16.92 | 16.92 | |||||||
| RP magnitude | 16.80 (0.006) | 16.80 | 16.80 | |||||||
| Pan g magnitude | 16.91 (0.009) | 16.91 (0.008) | ||||||||
| Pan r magnitude | 16.98 (0.006) | 16.98 (0.006) | ||||||||
| Pan i magnitude | 17.12 (0.005) | 17.12 (0.004) | ||||||||
| Pan z magnitude | 17.26 (0.009) | 17.26 (0.009) | ||||||||
| Pan y magnitude | 17.36 (0.02) | 17.36 (0.01) | ||||||||
| E(B-V) | 0.001 | |||||||||
* 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.