All names: WDJ220317.50+173601.56, LSPM J2203+1736, WDJ220317.5+173601.55, SDSS J220317.38+173600.3, USNO-B1.0 1076-00708800, Gaia DR3 1776027972567260416, Gaia DR2 1776027972567260416, NLTT 52798, LP 459-113, Gaia EDR3 1776027972567260416
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 03 17.31 (0.2) | 22 03 17.31 | 22 03 17.31 | 22 03 17.50 (0.2) | 22 03 17.31 | ||||
| Declination | 17 35 59.60 (0.2) | 17 35 59.66 | 17 35 59.60 | 17 36 01.56 (0.2) | 17 35 59.66 | ||||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 5338.0 (34) | 5241.0 (113) | ||||||
| log(g) | [cgs] | 7.96 (0.02) | 7.91 (0.06) | ||||||
| Mass | [M☉] | 0.558 (0.02) | 0.53 (0.05) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| 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] | 14.98 (0.2) | 14.73 (0.3) | 14.98 | 14.98 (0.2) | 14.73 (0.3) | |||
| Distance | [pc] | 66.76 (1) | 67.88 (1) | 66.76 | 66.76 (1) | 67.88 (1) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -170.9274467 (0.2) | -170.7302331 (0.5) | -170.927 (0.2) | -170.7302331 | ||||
| Proper motion (declination) | [mas/yr] | -123.0175817 (0.3) | -122.757199 (0.4) | -123.018 (0.3) | -122.757199 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 18.90 | ||||||||
| V magnitude | |||||||||
| R magnitude | 18.90 | ||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.42 (0.09) | 20.42 (0.09) | |||||||
| g magnitude | 19.16 (0.01) | 19.16 (0.01) | |||||||
| r magnitude | 18.59 (0.01) | 18.59 (0.01) | |||||||
| i magnitude | 18.40 (0.01) | 18.40 (0.01) | |||||||
| z magnitude | 18.25 (0.03) | 18.25 (0.03) | |||||||
| G magnitude | 18.62 (0.05) | 18.64 | 18.62 | 18.62 (0.004) | 18.64 | ||||
| BP magnitude | 19.08 (0.05) | 19.03 | 19.03 | ||||||
| RP magnitude | 18.05 (0.02) | 18.06 | 18.06 | ||||||
| Pan g magnitude | 19.09 (0.009) | ||||||||
| Pan r magnitude | 18.61 (0.008) | ||||||||
| Pan i magnitude | 18.39 (0.006) | ||||||||
| Pan z magnitude | 18.34 (0.03) | ||||||||
| Pan y magnitude | 18.26 (0.02) | ||||||||
| E(B-V) | 0.004 | ||||||||
* 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.