All names: WDS J02260+4228B, LP197-006, Gaia DR2 339492052075797376, NLTT 7949, J0225+4228, ** LDS 3383B, LSPM J0225+4228E, LP 197-6, WD 0222+422.1, Gaia EDR3 339492052075797376, Gaia DR3 339492052075797376
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 25 53.17 (0.2) | 02 25 52.59 (0.3) | 02 25 53.17 | 02 25 52.59 (0.2) | 02 25 52.52 | 02 25 50.62 | ||||||
| Declination | 42 28 00.20 (0.2) | 42 28 03.52 (0.3) | 42 28 00.20 | 42 28 03.53 (0.2) | 42 28 00.32 | 42 28 12.00 | ||||||
| Spectral type | DC | DC14 | DC14 | DA | DC14 | DC14 | ||||||
| Effective temperature | [K] | 4366.0 (42) | 6213.0 | 5959.0 | 4335.0 (120) | |||||||
| log(g) | [cgs] | 7.99 (0.03) | 7.94 | 7.79 | 7.97 (0.06) | |||||||
| Mass | [M☉] | 0.572 (0.03) | 0.555 | 0.453 | 0.561 (0.05) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 8.3400 | 1.8620 | 1.8420 | ||||||||
| 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] | 20.11 (0.2) | 19.94 (0.4) | 19.94 (0.4) | 20.11 | 20.11 (0.2) | 19.82 (0.2) | |||||
| Distance | [pc] | 49.74 (0.5) | 50.15 (1) | 50.16 (1) | 49.74 | 49.74 (0.5) | 50.45 (0.4) | |||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 399.9406398 (0.3) | 399.9094596 (0.5) | 399.941 (0.3) | 397.4046392 | |||||||
| Proper motion (declination) | [mas/yr] | -207.737335 (0.2) | -207.1145664 (0.5) | -207.737 (0.2) | -206.7686543 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 17.47 (0.03) | |||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 18.97 (0.003) | 19.00 | 18.97 | 18.97 (0.004) | 17.33 | |||||||
| BP magnitude | 19.64 (0.05) | 19.59 | 17.58 | |||||||||
| RP magnitude | 18.22 (0.02) | 18.22 | 16.89 | |||||||||
| Pan g magnitude | 19.80 (0.02) | 19.80 (0.02) | ||||||||||
| Pan r magnitude | 18.94 (0.006) | 18.94 (0.006) | ||||||||||
| Pan i magnitude | 18.57 (0.007) | 18.57 (0.007) | ||||||||||
| Pan z magnitude | 18.42 (0.02) | 18.42 (0.02) | ||||||||||
| Pan y magnitude | 18.36 (0.01) | 18.36 (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.