WD 1654+401
All names: WISE J165629.95+400329.7, WIRED J165629.94+400330.2, SDSS J165629.94+400330.3, GALEX J165630.0+400332, Gaia DR2 1352950088770867968, Gaia EDR3 1352950088770867968, Gaia DR3 1352950088770867968, WISEA J165629.94+400329.6, WD 1654+401, SDSS J165629.94+400330.2, SDSS J165629.93+400330.3, SDSS J165629.93+400330.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 56 29.95 (0.2) | 16 56 29.94 | 16 56 29.95 (0.2) | 16 56 29.95 | 16 56 29.94 (0.2) | 16 56 29.94 | 16 56 28.73 | 16 56 29.94 | 16 56 29.94 | |||||
| Declination | 40 03 29.24 (0.2) | 40 03 30.31 | 40 03 29.27 (0.3) | 40 03 29.24 | 40 03 30.36 (0.2) | 40 03 30.29 | 40 03 28.44 | 40 03 30.27 | 40 03 30.28 | |||||
| Spectral type | DA | DA: | DA+M | DA | DA6.8 | DA+M | DA | |||||||
| Effective temperature | [K] | 5942.0 | 6203.0 (197) | 7390.0 (76) | 6958.0 (77) | 7362.0 (74) | ||||||||
| log(g) | [cgs] | 7.32 | 7.46 (0.08) | 8.82 (0.2) | 7.94 (0.2) | 8.80 (0.2) | ||||||||
| Mass | [M☉] | 0.274 | 0.325 (0.05) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 1.1110 | ||||||||||||
| 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] | 6.28 (0.2) | 6.41 (0.3) | 6.28 | 6.28 (0.2) | |||||||||
| Distance | [pc] | 159.13 (5) | 155.97 (7) | 159.13 | 159.13 (5) | |||||||||
| Composition | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 10.28967357 (0.2) | 10.76353909 (0.5) | 10.29 (0.2) | 13.3 | 12.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -70.45808294 (0.3) | -69.83365143 (0.6) | -70.458 (0.3) | -67.7 | -67.0 | ||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | WDMS | |||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 19.96 (0.03) | 19.96 (0.03) | 19.95 (0.04) | 19.96 | 19.95 (0.04) | 19.96 (0.04) | ||||||||
| g magnitude | 19.46 (0.01) | 19.46 (0.01) | 19.48 (0.02) | 19.47 | 19.47 (0.02) | 19.47 (0.02) | ||||||||
| r magnitude | 19.25 (0.01) | 19.25 (0.01) | 19.26 (0.02) | 19.25 | 19.25 (0.02) | 19.25 (0.02) | ||||||||
| i magnitude | 19.21 (0.01) | 19.21 (0.01) | 19.26 (0.02) | 19.24 | 19.25 (0.02) | 19.24 (0.02) | ||||||||
| z magnitude | 19.04 (0.05) | 19.04 (0.05) | 19.06 (0.05) | 19.04 | 19.06 (0.05) | 19.04 (0.05) | ||||||||
| G magnitude | 19.20 (0.05) | 19.24 | 19.20 | 19.20 (0.004) | ||||||||||
| BP magnitude | 19.55 (0.05) | 19.49 | ||||||||||||
| RP magnitude | 18.75 (0.04) | 18.76 | ||||||||||||
| Pan g magnitude | 19.43 (0.008) | |||||||||||||
| Pan r magnitude | 19.25 (0.007) | |||||||||||||
| Pan i magnitude | 19.16 (0.007) | |||||||||||||
| Pan z magnitude | 19.03 (0.02) | |||||||||||||
| Pan y magnitude | 18.87 (0.009) | |||||||||||||
| E(B-V) | 0.018 | |||||||||||||
* Constant surface field
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