WD 1720+585
All names: SDSS J172109.99+583223.2, Gaia EDR3 1433986573934830208, WD 1720+585, GALEX J172110.0+583223, SDSS J172109.98+583223.1, SDSS J172109.97+583223.1, SDSS J172109.98+583223.2, SDSS J172109.99+583223.3, Gaia DR2 1433986573934830208, Gaia DR3 1433986573934830208
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | 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 | 17 21 09.98 (0.2) | 17 21 09.99 | 17 21 09.98 (0.2) | 17 21 09.99 (0.2) | 17 21 09.99 | 17 21 09.10 | 17 21 09.98 | 17 21 09.98 | |||||||
| Declination | 58 32 23.37 (0.2) | 58 32 23.30 | 58 32 23.36 (0.3) | 58 32 23.31 (0.2) | 58 32 23.30 | 58 32 21.48 | 58 32 23.19 | 58 32 23.17 | |||||||
| Spectral type | DA | DA | DA | DA | DA | DA0.7 | DA | DA | |||||||
| Effective temperature | [K] | 70475.0 (8539) | 23092.0 | 67640.0 (8000) | 70787.0 (5766) | 63878.0 (4696) | 71795.0 (5932) | ||||||||
| log(g) | [cgs] | 7.19 (0.4) | 7.41 | 7.09 (0.3) | 7.39 (0.3) | 7.41 (0.3) | 7.38 (0.3) | ||||||||
| Mass | [M☉] | 0.46 (0.1) | 0.378 | 0.44 (0.1) | 0.52 (0.08) | ||||||||||
| log(Luminosity) | [L☉] | 1.26 (0.4) | |||||||||||||
| Cooling age | [Gyr] | 0.0001 | 0.0204 | 0.0001 | |||||||||||
| 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] | 0.65 (0.2) | 1.16 (0.2) | 0.65 (0.2) | |||||||||||
| Distance | [pc] | 1544.62 (466) | 863.09 (172) | 1544.64 (466) | |||||||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.078587848 (0.3) | -4.220905232 (0.5) | -4.079 (0.3) | -4.8 | -6.0 | |||||||||
| Proper motion (declination) | [mas/yr] | 3.700455719 (0.3) | 4.133463529 (0.7) | 3.7 (0.3) | 4.1 | 6.0 | |||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | |||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 18.56 (0.02) | 18.56 (0.02) | 18.64 (0.03) | 18.63 | 18.61 (0.03) | 18.63 (0.02) | |||||||||
| g magnitude | 18.99 (0.009) | 18.99 (0.009) | 19.01 (0.03) | 19.00 | 19.00 (0.03) | 19.00 (0.03) | |||||||||
| r magnitude | 19.48 (0.02) | 19.48 (0.01) | 19.50 (0.02) | 19.51 | 19.50 (0.02) | 19.51 (0.02) | |||||||||
| i magnitude | 19.83 (0.03) | 19.83 (0.03) | 19.85 (0.03) | 19.86 | 19.86 (0.03) | 19.86 (0.03) | |||||||||
| z magnitude | 20.04 (0.1) | 20.04 (0.1) | 20.06 (0.1) | 20.08 | 20.06 (0.1) | 20.08 (0.1) | |||||||||
| G magnitude | 19.25 (0.02) | 19.29 | 19.25 (0.004) | ||||||||||||
| BP magnitude | 19.11 (0.02) | 19.01 | |||||||||||||
| RP magnitude | 19.58 (0.05) | 19.47 | |||||||||||||
| Pan g magnitude | 19.10 (0.01) | ||||||||||||||
| Pan r magnitude | 19.53 (0.01) | ||||||||||||||
| Pan i magnitude | 19.87 (0.01) | ||||||||||||||
| Pan z magnitude | 20.09 (0.06) | ||||||||||||||
| Pan y magnitude | 20.06 (0.08) | ||||||||||||||
| E(B-V) | 0.024 | ||||||||||||||
* Constant surface field
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