WD 2222+683
All names: SDSS J222333.21+683725.2, WDJ222333.11+683724.28, G 241-6, WD 2222+683, Gaia EDR3 2225982838287401984, Gaia DR2 2225982838287401984, SDSS J222333.20+683725.2, GD241-6, LSPM J2223+6837, USNO-B1.0 1586-00202155, NLTT 53763, PLX 5419.11, G241-6, 2MASS J22233307+6837241, TIC 375785769, Gaia DR3 2225982838287401984, USNO 774
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD HE | Gaia DR2 | Stilism | Jura et al. 2012 | Zuckerman et al. 2011 | Bergeron et al. 2011 | Zuckerman et al. 2010 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 23 33.51 (0.03) | 22 23 33.50 (0.04) | 22 23 33.51 | 22 23 33.11 (0.03) | 22 23 33.50 | 22 23 33.05 | ||||||||
| Declination | 68 37 28.21 (0.03) | 68 37 28.09 (0.03) | 68 37 28.21 | 68 37 24.28 (0.03) | 68 37 28.09 | 68 37 07.32 | ||||||||
| Spectral type | DB | DB | DBZ | DBZ | DBZ | DB | DB | DB4 | ||||||
| Effective temperature | [K] | 13947.0 | 15300.0 | 15300.0 | 15230.0 (380) | 15300.0 | 15281.0 (199) | |||||||
| log(g) | [cgs] | 7.95 | 8.00 (0) | 8.00 | 8.20 (0.1) | 8.08 (0.01) | ||||||||
| Mass | [M☉] | 0.56 | 0.71 (0.07) | 0.639 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | -2.23 | ||||||||||||
| Cooling age | [Gyr] | 0.2306 | 0.2692 | 1.9000 | ||||||||||
| log(H/He) | -5.9 (0.3) | <-5.42 (0.4) | ||||||||||||
| log(C/He) | <-8.5 | |||||||||||||
| log(Ca/He) | -7.3 (0.2) | -7.25 | -7.0 | -7.25 | ||||||||||
| log(Ca/H) | ||||||||||||||
| log(N/He) | <-8.9 | |||||||||||||
| log(O/He) | -5.64 (0.1) | |||||||||||||
| log(Na/He) | ||||||||||||||
| log(Mg/He) | -6.26 (0.1) | |||||||||||||
| log(Al/He) | <-7.7 | |||||||||||||
| log(Si/He) | -6.62 (0.2) | |||||||||||||
| log(P/He) | -9.04 (0.1) | |||||||||||||
| log(S/He) | -7.07 (0.3) | |||||||||||||
| log(Cl/He) | <-9.2 | |||||||||||||
| log(Sc/He) | ||||||||||||||
| log(Ti/He) | -8.97 (0.1) | |||||||||||||
| log(V/He) | ||||||||||||||
| log(Cr/He) | -8.46 (0.1) | |||||||||||||
| log(Mn/He) | -8.76 (0.2) | |||||||||||||
| log(Fe/He) | -6.82 (0.1) | |||||||||||||
| log(Co/He) | ||||||||||||||
| log(Ni/He) | -8.15 (0.4) | |||||||||||||
| log(Cu/He) | <-9.90 | |||||||||||||
| log(Zn/He) | ||||||||||||||
| log(Ga/He) | <-10.8 | |||||||||||||
| log(Ge/He) | <-10.2 | |||||||||||||
| log(Sr/He) | ||||||||||||||
| Parallax | [mas] | 13.77 (0.03) | 13.74 (0.04) | 13.77 | 13.77 (0.03) | 13.74 (0.04) | 13.80 (44) | |||||||
| Distance | [pc] | 72.60 (0.2) | 72.80 (0.2) | 65.00 | 65.00 | 72.60 | 72.60 (0.2) | 72.80 (0.2) | 72.46 (231) | |||||
| Composition | He | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 139.2603645 (0.04) | 139.2311668 (0.07) | 139.26 (0.04) | 139.2311668 | |||||||||
| Proper motion (declination) | [mas/yr] | 245.5433001 (0.03) | 245.4823832 (0.06) | 245.543 (0.03) | 245.4823832 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 15.70 | |||||||||||||
| V magnitude | 15.65 | 15.65 | ||||||||||||
| R magnitude | 15.70 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.07 (0.09) | |||||||||||||
| H magnitude | 16.08 (0.2) | |||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 15.44 (0.005) | 15.44 (0.005) | ||||||||||||
| g magnitude | 15.50 (0.004) | 15.50 (0.004) | ||||||||||||
| r magnitude | 15.79 (0.004) | 15.79 (0.004) | ||||||||||||
| i magnitude | 16.02 (0.005) | 16.02 (0.005) | ||||||||||||
| z magnitude | 16.26 (0.009) | 16.26 (0.009) | ||||||||||||
| G magnitude | 15.65 (0.003) | 15.67 | 15.65 | 15.65 (0.003) | 15.67 | |||||||||
| BP magnitude | 15.60 (0.003) | 15.58 | 15.58 | |||||||||||
| RP magnitude | 15.74 (0.003) | 15.74 | 15.74 | |||||||||||
| Pan g magnitude | 15.59 (0.003) | |||||||||||||
| Pan r magnitude | 15.82 (0.003) | |||||||||||||
| Pan i magnitude | 16.07 (0.003) | |||||||||||||
| Pan z magnitude | 16.28 (0.002) | |||||||||||||
| Pan y magnitude | 16.44 (0.007) | |||||||||||||
| E(B-V) | 0.005 | |||||||||||||
* Constant surface field
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