All names: PHL 315, EC 22309-1230, USNO-B1.0 0777-00853342, GD 237, WD 2230-125, HE 2230-1230, TIC 12859692, 2MASS J22333872-1215280, Gaia DR2 2601689466188247808, Gaia EDR3 2601689466188247808, GALEX J223338.7-121526, Gaia DR3 2601689466188247808
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2009 | Kilic et al. 2006 | Koester et al. 2005 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 33 38.80 (0.06) | 22 33 38.80 (0.08) | 22 33 38.80 | 22 33 38.73 (0.06) | 22 33 38.26 | |||||
| Declination | -12 15 27.92 (0.04) | -12 15 27.93 (0.08) | -12 15 27.92 | -12 15 28.46 (0.04) | -12 15 24.12 | |||||
| Spectral type | DAZ | DA | DA | DAZ | DA | |||||
| Effective temperature | [K] | 20949.0 (41) | 20300.0 | 20300.0 | 20115.0 (445) | |||||
| log(g) | [cgs] | 7.81 (0.007) | 7.70 | 7.70 | 7.87 (0.02) | |||||
| Mass | [M☉] | 0.552 (0.01) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | -6.3 | -6.3 | ||||||||
| 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] | 8.03 (0.06) | 8.03 (0.09) | 8.03 | 8.03 (0.06) | |||||
| Distance | [pc] | 124.53 (1) | 124.58 (1) | 124.53 | 124.53 (1) | |||||
| Composition | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 67.42764211 (0.06) | 67.44343716 (0.2) | 67.428 (0.06) | ||||||
| Proper motion (declination) | [mas/yr] | 34.15281256 (0.05) | 34.19304985 (0.2) | 34.153 (0.05) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.08 | 16.00 | ||||||||
| V magnitude | 16.30 | |||||||||
| R magnitude | 18.10 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.36 (0.1) | |||||||||
| H magnitude | 16.44 (0.2) | |||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.06 (0.003) | 16.08 | 16.06 | 16.06 (0.003) | ||||||
| BP magnitude | 15.97 (0.003) | 15.94 | ||||||||
| RP magnitude | 16.25 (0.005) | 16.24 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.020 | |||||||||
* 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.