All names: LSPM J0225+4228W, TIC 202869130, PSO J036.4687+42.4667, Gaia DR3 339492017717622016, 2MASS J02255196+4228042, LP 197-5, Gaia EDR3 339492017717622016, J0225+4228, 02258+4228W, WD 0222+422.2, USNO-B1.0 1324-00053079, NLTT 7948, WDS J02260+4228A, Gaia DR2 339492017717622016, WDJ022551.96+422803.52, PM J02258+4228W, ** LDS 3383A
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 25 52.53 (0.07) | 02 25 52.52 (0.1) | 02 25 52.53 | 02 25 51.96 (0.07) | 02 25 52.52 | 02 25 51.62 | ||||||||
| Declination | 42 28 00.21 (0.07) | 42 28 00.32 (0.1) | 42 28 00.21 | 42 28 03.52 (0.07) | 42 28 00.32 | 42 28 30.00 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA8 | DA | ||||||
| Effective temperature | [K] | 6261.0 (15) | 6190.0 (65) | 6213.0 | 5410.0 (177) | 6320.0 (280) | 6337.0 (57) | |||||||
| log(g) | [cgs] | 7.96 (0.01) | 7.94 (0.03) | 7.94 | 8.00 (0) | 8.17 (0.6) | 7.99 (0.02) | |||||||
| Mass | [M☉] | 0.568 (0.008) | 0.553 (0.02) | 0.555 | 0.58 (0.1) | 0.69 (0.3) | 0.583 (0.01) | |||||||
| log(Luminosity) | [L☉] | -3.91 | ||||||||||||
| Cooling age | [Gyr] | 1.9900 | 1.8740 (0.1) | 1.8620 | ||||||||||
| 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] | 19.79 (0.08) | 19.82 (0.2) | 19.82 (0.2) | 19.82 (0.2) | 19.79 | 19.79 (0.08) | 19.82 (0.2) | ||||||
| Distance | [pc] | 50.52 (0.2) | 50.45 (0.4) | 50.45 (0.4) | 50.45 (0.4) | 38.10 (2) | 41.00 | 50.52 | 50.52 (0.2) | 50.45 (0.4) | ||||
| Composition | H | H | H | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | 397.4719483 (0.09) | 397.4046392 (0.2) | 397.472 (0.09) | 397.4046392 | |||||||||
| Proper motion (declination) | [mas/yr] | -206.8482563 (0.09) | -206.7686543 (0.2) | -206.848 (0.09) | -206.7686543 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | yes | |||||||||||||
| B magnitude | 16.00 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 16.70 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.47 (0.02) | 16.50 (0.1) | 16.50 (0.1) | |||||||||||
| H magnitude | 16.26 (0.2) | 16.26 (0.2) | 16.26 (0.2) | |||||||||||
| K magnitude | 16.17 (0.2) | 16.17 (0.2) | 16.17 (0.2) | |||||||||||
| u magnitude | ||||||||||||||
| g magnitude | 17.61 (0.02) | |||||||||||||
| r magnitude | 17.32 (0.004) | |||||||||||||
| i magnitude | 17.22 (0.004) | |||||||||||||
| z magnitude | 17.23 (0.003) | |||||||||||||
| G magnitude | 17.31 (0.01) | 17.33 | 17.31 | 17.31 (0.003) | 17.33 | |||||||||
| BP magnitude | 17.59 (0.01) | 17.58 | 17.58 | |||||||||||
| RP magnitude | 16.89 (0.008) | 16.89 | 16.89 | |||||||||||
| Pan g magnitude | 17.60 (0.002) | 17.60 (0.002) | 17.61 (0.01) | |||||||||||
| Pan r magnitude | 17.33 (0.002) | 17.33 (0.002) | 17.32 (0.004) | |||||||||||
| Pan i magnitude | 17.21 (0.006) | 17.21 (0.006) | 17.21 (0.004) | |||||||||||
| Pan z magnitude | 17.22 (0.006) | 17.22 (0.005) | 17.23 (0.003) | |||||||||||
| Pan y magnitude | 17.24 (0.007) | 17.24 (0.007) | 17.22 (0.02) | |||||||||||
| 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.