WD 1706+331
All names: EGGR 198, SDSS J170852.05+331258.3, SDSS J170852.04+331258.2, WD 1706+332, uvby98 620020198, CSI+33-17070, 2MASS J17085205+3312584, Gaia DR2 1334638379741833728, WDJ170852.05+331258.48, WDS J17088+3313B, Gaia DR3 1334638379741833728, WD 1706+33, G 181-B5B, ** SKF 307B, G181-B5B, TIC 21860382, Gaia EDR3 1334638379741833728, GALEX J170852.1+331257, WD 1706+331, GCRV 21681, J1708+3312
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Bedard et al. 2017 | Tremblay et al. 2017 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 08 52.05 (0.02) | 17 08 52.05 (0.03) | 17 08 52.05 | 17 08 52.05 (0.02) | 17 08 52.05 | 17 08 49.10 | |||||||||
| Declination | 33 12 56.07 (0.03) | 33 12 56.15 (0.04) | 33 12 56.07 | 33 12 58.48 (0.03) | 33 12 56.15 | 33 13 02.28 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA3.7 | DA4 | ||||||
| Effective temperature | [K] | 12025.0 (92) | 12025.0 (92) | 12250.0 | 12774.0 (211) | 13560.0 (390) | 13560.0 (393) | 12382.0 (124) | |||||||
| log(g) | [cgs] | 8.00 (0.005) | 8.00 (0.006) | 8.01 | 8.06 (0.05) | 7.94 (0.06) | 7.94 (0.06) | 8.03 (0.008) | |||||||
| Mass | [M☉] | 0.603 (0.004) | 0.604 (0.005) | 0.614 | 0.64 (0.09) | 0.57 (0.03) | 0.623 (0.007) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.3599 | |||||||||||||
| 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] | 14.10 (0.03) | 14.11 (0.04) | 13.98 (0.4) | 14.10 | 14.10 (0.03) | 14.11 (0.04) | 14.60 (1) | |||||||
| Distance | [pc] | 70.92 (0.2) | 70.88 (0.2) | 71.50 (3) | 71.53 (2) | 81.00 | 70.92 | 70.92 (0.2) | 70.88 (0.2) | 68.49 (5) | |||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -0.131879706 (0.03) | -0.167133447 (0.07) | -0.132 (0.03) | -0.167133447 | ||||||||||
| Proper motion (declination) | [mas/yr] | -150.7504974 (0.04) | -150.6892985 (0.09) | -150.75 (0.04) | -150.6892985 | ||||||||||
| Variability | NOV | ||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | yes | ||||||||||||||
| B magnitude | 16.09 | ||||||||||||||
| V magnitude | 15.90 (0.05) | 15.92 | |||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.14 (0.09) | ||||||||||||||
| H magnitude | 16.06 (0.2) | ||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 16.27 (0.006) | 16.26 (0.006) | |||||||||||||
| g magnitude | 15.85 (0.004) | 15.85 (0.004) | |||||||||||||
| r magnitude | 16.05 (0.004) | 16.05 (0.005) | |||||||||||||
| i magnitude | 16.29 (0.005) | 16.27 (0.005) | |||||||||||||
| z magnitude | 16.51 (0.009) | 16.51 (0.008) | |||||||||||||
| G magnitude | 15.94 (0.003) | 15.96 | 15.97 (0.002) | 15.94 | 15.94 (0.003) | 15.96 | |||||||||
| BP magnitude | 15.94 (0.003) | 15.94 | 15.94 | ||||||||||||
| RP magnitude | 15.96 (0.004) | 15.97 | 15.97 | ||||||||||||
| Pan g magnitude | 15.84 (0.007) | ||||||||||||||
| Pan r magnitude | 16.05 (0.003) | ||||||||||||||
| Pan i magnitude | 16.27 (0.002) | ||||||||||||||
| Pan z magnitude | 16.49 (0.001) | ||||||||||||||
| Pan y magnitude | 16.62 (0.01) | ||||||||||||||
| E(B-V) | 0.008 | ||||||||||||||
* Constant surface field
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