WD 0023+006
All names: UM 243, Gaia EDR3 2546938288252321024, SDSS J002633.88+005425.8, SDSS J002633.87+005425.6, SDSS J002633.89+005425.9, SDSS J002633.88+005425.6, Gaia DR3 2546938288252321024, GALEX J002633.8+005426, Gaia DR2 2546938288252025856, SDSS J002633.89+005425.90, WD 0023+006
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Genest-Beaulieu & Bergeron 2019 (photometric) | MWDD HE | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 26 33.88 (0.2) | 00 26 33.88 | 00 26 33.88 (0.4) | 00 26 33.89 (0.2) | 00 26 33.89 | 00 26 32.86 | 00 26 33.89 | |||||||
| Declination | 00 54 25.56 (0.2) | 00 54 25.67 | 00 54 25.57 (0.3) | 00 54 25.92 (0.2) | 00 54 25.84 | 00 54 24.12 | 00 54 25.93 | |||||||
| Spectral type | DB | DB | DB | DB2.5 | DB | DB | ||||||||
| Effective temperature | [K] | 18755.0 | 19076.0 | 16097.0 | 19355.0 (401) | 19550.0 (796) | ||||||||
| log(g) | [cgs] | 8.09 | 8.11 | 7.92 | 8.22 (0.1) | 8.09 (0.1) | ||||||||
| Mass | [M☉] | 0.651 | 0.663 | 0.544 | 0.645 (0.07) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.1362 | ||||||||||||
| log(H/He) | -4.419 | |||||||||||||
| 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] | 2.39 (0.3) | 2.39 (0.5) | 2.39 (0.3) | ||||||||||
| Distance | [pc] | 417.55 (45) | 418.55 (80) | 417.55 (45) | ||||||||||
| Composition | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -8.61531142 (0.3) | -9.122069372 (1) | -8.615 (0.3) | -2.7 | |||||||||
| Proper motion (declination) | [mas/yr] | -22.72671264 (0.2) | -22.56312553 (0.8) | -22.727 (0.2) | -25.5 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 18.00 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.81 (0.02) | 18.81 (0.02) | 18.86 (0.03) | 18.86 | 18.87 (0.03) | |||||||||
| g magnitude | 18.94 (0.009) | 18.94 (0.009) | 18.93 (0.04) | 18.93 | 18.92 (0.04) | |||||||||
| r magnitude | 19.27 (0.01) | 19.27 (0.01) | 19.24 (0.03) | 19.26 | 19.22 (0.03) | |||||||||
| i magnitude | 19.49 (0.02) | 19.49 (0.02) | 19.57 (0.03) | 19.57 | 19.56 (0.03) | |||||||||
| z magnitude | 19.73 (0.08) | 19.73 (0.08) | 19.81 (0.1) | 19.80 | 19.79 (0.1) | |||||||||
| G magnitude | 19.10 (0.02) | 19.12 | 19.10 (0.004) | |||||||||||
| BP magnitude | 19.09 (0.02) | 19.02 | ||||||||||||
| RP magnitude | 19.22 (0.04) | 19.20 | ||||||||||||
| Pan g magnitude | 18.96 (0.007) | |||||||||||||
| Pan r magnitude | 19.26 (0.008) | |||||||||||||
| Pan i magnitude | 19.53 (0.01) | |||||||||||||
| Pan z magnitude | 19.76 (0.02) | |||||||||||||
| Pan y magnitude | 19.83 (0.06) | |||||||||||||
| E(B-V) | 0.026 | |||||||||||||
* Constant surface field
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