WD 1706+642
All names: WDJ170703.99+641334.12, SDSS J170704.04+641334.4, WD 1706+642, SDSS J170704.03+641334.4, SDSS J170704.03+641334.3, Gaia DR3 1632041328568823424, Gaia DR2 1632041328568823424, Gaia EDR3 1632041328568823424, SDSS J170703.99+641334.1, J1707+6413
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | 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 07 04.11 (0.07) | 17 07 04.04 | 17 07 04.11 (0.09) | 17 07 04.11 | 17 07 03.99 (0.07) | 17 07 04.11 | 17 07 03.99 | 17 07 02.95 | 17 07 03.99 | 17 07 03.99 | |||||||||
| Declination | 64 13 34.98 (0.08) | 64 13 34.40 | 64 13 34.95 (0.1) | 64 13 34.98 | 64 13 34.12 (0.08) | 64 13 34.95 | 64 13 34.14 | 64 13 27.84 | 64 13 34.13 | 64 13 34.14 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA7 | DA | DA | DA6.1 | DA | DA | |||||||
| Effective temperature | [K] | 7617.0 (47) | 7637.0 (45) | 7617.0 (46) | 7635.0 | 7730.0 (70) | 7614.0 (104) | 8111.0 (39) | 7574.0 (42) | 8200.0 (39) | |||||||||
| log(g) | [cgs] | 7.97 (0.01) | 7.97 (0.01) | 7.97 (0.01) | 7.97 | 8.24 (0.1) | 7.96 (0.03) | 8.44 (0.08) | 7.78 (0.08) | 8.61 (0.08) | |||||||||
| Mass | [M☉] | 0.576 (0.01) | 0.577 (0.01) | 0.574 (0.01) | 0.576 | 0.74 (0.07) | 0.57 (0.02) | 0.487 (0.04) | |||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||||
| Cooling age | [Gyr] | 1.2100 | 1.1660 | 1.8197 | |||||||||||||||
| 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] | 10.94 (0.08) | 10.92 (0.1) | 10.92 (0.1) | 10.94 | 10.94 (0.08) | 10.92 (0.1) | ||||||||||||
| Distance | [pc] | 91.37 (0.7) | 91.58 (0.8) | 91.55 (0.8) | 91.37 | 91.37 (0.7) | 91.55 (0.8) | ||||||||||||
| Composition | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 50.18988153 (0.09) | 50.16753211 (0.2) | 50.19 (0.09) | 50.168 | 51.6 | 48.0 | ||||||||||||
| Proper motion (declination) | [mas/yr] | 53.85299383 (0.1) | 53.99476354 (0.2) | 53.853 (0.1) | 53.995 | 51.5 | 54.0 | ||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | |||||||||||||||||||
| V magnitude | |||||||||||||||||||
| R magnitude | |||||||||||||||||||
| I magnitude | |||||||||||||||||||
| J magnitude | |||||||||||||||||||
| H magnitude | |||||||||||||||||||
| K magnitude | |||||||||||||||||||
| u magnitude | 18.47 (0.02) | 18.49 (0.02) | 18.46 (0.02) | 18.50 (0.02) | 18.51 (0.02) | 18.48 | 18.53 (0.02) | 18.48 (0.03) | |||||||||||
| g magnitude | 18.01 (0.006) | 18.01 (0.006) | 18.00 (0.006) | 18.04 (0.01) | 18.03 | 18.03 (0.01) | 18.03 (0.01) | ||||||||||||
| r magnitude | 17.90 (0.006) | 17.90 (0.006) | 17.90 (0.007) | 17.91 (0.01) | 17.91 | 17.91 (0.01) | 17.91 (0.01) | ||||||||||||
| i magnitude | 17.90 (0.007) | 17.90 (0.007) | 17.90 (0.008) | 17.91 (0.01) | 17.90 | 17.91 (0.01) | 17.90 (0.01) | ||||||||||||
| z magnitude | 17.96 (0.02) | 17.96 (0.02) | 17.96 (0.02) | 17.97 (0.03) | 17.97 | 17.98 (0.03) | 17.97 (0.03) | ||||||||||||
| G magnitude | 17.87 (0.01) | 17.90 | 17.87 | 17.87 (0.003) | 17.90 | ||||||||||||||
| BP magnitude | 18.04 (0.01) | 18.05 | 18.05 | ||||||||||||||||
| RP magnitude | 17.59 (0.02) | 17.61 | 17.61 | ||||||||||||||||
| Pan g magnitude | 18.02 (0.005) | 18.02 (0.004) | |||||||||||||||||
| Pan r magnitude | 17.91 (0.005) | 17.91 (0.005) | |||||||||||||||||
| Pan i magnitude | 17.93 (0.003) | 17.93 (0.003) | |||||||||||||||||
| Pan z magnitude | 17.99 (0.008) | 17.99 (0.008) | |||||||||||||||||
| Pan y magnitude | 18.09 (0.02) | 18.09 (0.02) | |||||||||||||||||
| E(B-V) | 0.012 | ||||||||||||||||||
* Constant surface field
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