GD 308
All names: Gaia EDR3 771517005584473600, WD 1123+426, USNO-B1.0 1323-00270937, 2MASS J11254180+4223349, TIC 148676008, KUV 11230+4240, GD 308, CBS 434, LSPM J1125+4223, WD 1122+426, WDJ112541.76+422334.85, WIRED J112541.71+422334.7, GALEX J112541.7+422335, J1125+4223, SDSS J112541.71+422334.8, SDSS J112541.71+422334.7, Gaia DR2 771517005584473600, Gaia DR3 771517005584473600
| 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 | Gianninas et al. 2011 | 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 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 25 41.54 (0.04) | 11 25 41.71 | 11 25 41.55 (0.05) | 11 25 41.54 | 11 25 41.76 (0.04) | 11 25 41.55 | 11 25 41.72 | 11 25 41.26 | 11 25 41.71 | ||||||||||
| Declination | 42 23 34.42 (0.05) | 42 23 34.76 | 42 23 34.43 (0.07) | 42 23 34.42 | 42 23 34.85 (0.05) | 42 23 34.43 | 42 23 34.77 | 42 23 30.12 | 42 23 34.77 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA4.8 | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 9512.0 (42) | 9510.0 (38) | 9512.0 (42) | 9589.0 | 10470.0 (157) | 10360.0 (30) | 9699.0 (86) | 10231.0 (23) | 10190.0 (27) | |||||||||
| log(g) | [cgs] | 8.19 (0.008) | 8.19 (0.008) | 8.18 (0.008) | 8.20 | 8.17 (0.06) | 8.25 (0.03) | 8.23 (0.01) | 8.27 (0.02) | 8.24 (0.03) | |||||||||
| Mass | [M☉] | 0.714 (0.007) | 0.713 (0.007) | 0.712 (0.007) | 0.72 | 0.71 (0.04) | 0.76 (0.02) | 0.742 (0.01) | 0.741 (0.02) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||||
| Cooling age | [Gyr] | 0.9300 | 0.8947 | 0.7943 | |||||||||||||||
| 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] | 17.63 (0.07) | 17.59 (0.07) | 17.59 (0.07) | 17.63 | 17.63 (0.07) | 17.59 (0.07) | ||||||||||||
| Distance | [pc] | 56.71 (0.2) | 56.85 (0.2) | 56.87 (0.2) | 66.00 | 56.71 | 56.71 (0.2) | 56.87 (0.2) | |||||||||||
| Composition | H | H | H | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -150.2745715 (0.05) | -150.2528525 (0.09) | -150.275 (0.05) | -150.253 | -147.6 | |||||||||||||
| Proper motion (declination) | [mas/yr] | -26.8111906 (0.05) | -26.77002976 (0.1) | -26.811 (0.06) | -26.77 | -27.8 | |||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | 16.50 | ||||||||||||||||||
| V magnitude | |||||||||||||||||||
| R magnitude | 16.10 | ||||||||||||||||||
| I magnitude | |||||||||||||||||||
| J magnitude | 16.23 (0.01) | 16.19 (0.08) | |||||||||||||||||
| H magnitude | 16.25 (0.2) | 16.25 (0.2) | |||||||||||||||||
| K magnitude | 15.65 (0.2) | 15.65 (0.2) | |||||||||||||||||
| u magnitude | 16.82 (0.007) | 16.84 (0.007) | 16.82 (0.007) | 16.82 (0.007) | 16.84 (0.03) | 16.84 | 16.83 (0.03) | ||||||||||||
| g magnitude | 16.39 (0.004) | 16.39 (0.004) | 16.39 (0.004) | 16.42 (0.03) | 16.42 | 16.40 (0.03) | |||||||||||||
| r magnitude | 16.48 (0.004) | 16.48 (0.004) | 16.48 (0.004) | 16.51 (0.02) | 16.51 | 16.50 (0.02) | |||||||||||||
| i magnitude | 16.56 (0.005) | 16.56 (0.005) | 16.56 (0.005) | 16.57 (0.03) | 16.57 | 16.56 (0.03) | |||||||||||||
| z magnitude | 16.72 (0.009) | 16.72 (0.009) | 16.72 (0.009) | 16.75 (0.02) | 16.75 | 16.72 (0.02) | |||||||||||||
| G magnitude | 16.39 (0.005) | 16.40 | 16.39 | 16.39 (0.003) | 16.40 | ||||||||||||||
| BP magnitude | 16.45 (0.005) | 16.44 | 16.44 | ||||||||||||||||
| RP magnitude | 16.28 (0.005) | 16.28 | 16.28 | ||||||||||||||||
| Pan g magnitude | 16.40 (0.002) | 16.40 (0.002) | |||||||||||||||||
| Pan r magnitude | 16.46 (0.003) | 16.46 (0.003) | |||||||||||||||||
| Pan i magnitude | 16.59 (0.003) | 16.59 (0.003) | |||||||||||||||||
| Pan z magnitude | 16.72 (0.004) | 16.72 (0.004) | |||||||||||||||||
| Pan y magnitude | 16.83 (0.006) | 16.83 (0.008) | |||||||||||||||||
| E(B-V) | 0.002 | ||||||||||||||||||
* Constant surface field
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