WD 1437+008
All names: WD 1437+008, GALEX J144028.7+003939, SDSS J144028.75+003939.7, 2QZ J144028.7+003939, Gaia DR3 3654812487934552448, Gaia DR2 3654812487934552448, SDSS J144028.75+003939.6, SDSS J144028.76+003939.6, Gaia EDR3 3654812487934552448
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 40 28.74 (0.4) | 14 40 28.76 | 14 40 28.74 (0.6) | 14 40 28.75 (0.4) | 14 40 28.76 | 14 40 28.20 | 14 40 28.75 | ||||||
| Declination | 00 39 39.54 (0.4) | 00 39 39.64 | 00 39 39.55 (0.4) | 00 39 39.64 (0.4) | 00 39 39.63 | 00 39 33.84 | 00 39 39.65 | ||||||
| Spectral type | DA2 | DA2 | DA2 | DA | DA2.6 | DA | DA | ||||||
| Effective temperature | [K] | 15904.0 | 19407.0 (635) | 19105.0 (594) | |||||||||
| log(g) | [cgs] | 7.05 | 7.79 (0.1) | 7.84 (0.1) | |||||||||
| Mass | [M☉] | 0.259 | 0.543 (0.05) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.0578 | |||||||||||
| 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] | 1.76 (0.5) | 1.07 (0.6) | 1.76 (0.5) | |||||||||
| Distance | [pc] | 568.85 (154) | 936.16 (517) | 568.86 (154) | |||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -16.47818958 (0.5) | -15.54175451 (1) | -16.478 (0.5) | -17.7 | ||||||||
| Proper motion (declination) | [mas/yr] | -6.18366818 (0.5) | -5.4223352 (0.9) | -6.184 (0.5) | -15.4 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.42 (0.02) | 19.44 | 19.42 (0.02) | 19.43 (0.03) | 19.44 | 19.43 (0.03) | |||||||
| g magnitude | 19.45 (0.01) | 19.46 | 19.45 (0.01) | 19.46 (0.02) | 19.46 | 19.46 (0.02) | |||||||
| r magnitude | 19.80 (0.02) | 19.81 | 19.80 (0.02) | 19.82 (0.03) | 19.82 | 19.82 (0.03) | |||||||
| i magnitude | 20.03 (0.03) | 20.04 | 20.03 (0.03) | 20.04 (0.03) | 20.05 | 20.05 (0.03) | |||||||
| z magnitude | 20.25 (0.1) | 20.28 | 20.25 (0.1) | 20.28 (0.1) | 20.29 | 20.29 (0.1) | |||||||
| G magnitude | 19.64 (0.05) | 19.68 | 19.64 (0.006) | ||||||||||
| BP magnitude | 19.60 (0.05) | 19.45 | |||||||||||
| RP magnitude | 19.74 (0.09) | 19.92 | |||||||||||
| Pan g magnitude | 19.48 (0.009) | ||||||||||||
| Pan r magnitude | 19.81 (0.01) | ||||||||||||
| Pan i magnitude | 20.09 (0.01) | ||||||||||||
| Pan z magnitude | 20.34 (0.02) | ||||||||||||
| Pan y magnitude | 20.36 (0.2) | ||||||||||||
| E(B-V) | 0.039 | ||||||||||||
* Constant surface field
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