All names: TIC 388138373, UCAC4 723-098493, WD 2236+541, KPD 2236+5410, Gaia DR2 2003212642819889792, Gaia EDR3 2003212642819889792, WDJ223823.59+542614.00, Gaia DR3 2003212642819889792, 2MASS J22382358+5426140
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Bergeron et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 38 23.59 (0.03) | 22 38 23.59 (0.04) | 22 38 23.59 | 22 38 23.59 (0.03) | 22 38 23.59 | 22 38 24.98 | ||||
| Declination | 54 26 14.26 (0.03) | 54 26 14.25 (0.04) | 54 26 14.26 | 54 26 14.00 (0.03) | 54 26 14.25 | 54 26 19.68 | ||||
| Spectral type | DB | DB | DB | DB | ||||||
| Effective temperature | [K] | 15470.0 (386) | 15295.0 (207) | |||||||
| log(g) | [cgs] | 8.30 (0.09) | 8.30 (0.01) | |||||||
| Mass | [M☉] | 0.78 (0.06) | 0.777 (0.01) | |||||||
| log(Luminosity) | [L☉] | -2.26 | ||||||||
| Cooling age | [Gyr] | 0.3020 | ||||||||
| log(H/He) | <-5.38 (0.3) | |||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| 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] | 12.58 (0.04) | 12.59 (0.05) | 12.58 | 12.58 (0.04) | 12.59 (0.05) | ||||
| Distance | [pc] | 79.51 (0.2) | 79.43 (0.3) | 79.00 | 79.51 | 79.51 (0.2) | 79.43 (0.3) | |||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.230208591 (0.04) | 0.276279112 (0.09) | 0.23 (0.04) | 0.276279111 | |||||
| Proper motion (declination) | [mas/yr] | 16.26889843 (0.03) | 16.03813897 (0.08) | 16.269 (0.04) | 16.03813897 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.13 | |||||||||
| V magnitude | 16.19 | 16.19 | ||||||||
| R magnitude | 16.17 (0.2) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.28 (0.1) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.18 (0.002) | 16.21 | 16.18 | 16.18 (0.003) | 16.21 | |||||
| BP magnitude | 16.13 (0.002) | 16.09 | 16.09 | |||||||
| RP magnitude | 16.28 (0.004) | 16.26 | 16.26 | |||||||
| Pan g magnitude | 16.11 (0.007) | |||||||||
| Pan r magnitude | 16.36 (0.003) | |||||||||
| Pan i magnitude | 16.61 (0.002) | |||||||||
| Pan z magnitude | 16.83 (0.005) | |||||||||
| Pan y magnitude | 17.00 (0.01) | |||||||||
| E(B-V) | 0.011 | |||||||||
* 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.