2MASS J16403197+2229289
All names: WD 1638+225, SDSS J164031.98+222928.4, Gaia DR2 1299314816353108992, GALEX J164032.0+222928, Gaia EDR3 1299314816353108992, WDJ164031.98+222928.79, J1640+2229, Gaia DR3 1299314816353108992, PSO J250.1332+22.4908, TIC 258133171, SDSS J164031.98+222928.3, 2MASS J16403197+2229289
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Blouin & Xu 2022 | Kilic et al. 2020 | Blouin et al. 2019 | 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 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 40 31.99 (0.04) | 16 40 31.98 | 16 40 31.99 (0.07) | 16 40 31.99 | 16 40 31.98 (0.04) | 16 40 31.99 | 16 40 31.98 | 16 40 31.75 | 16 40 31.98 | |||||||||||
| Declination | 22 29 26.75 (0.05) | 22 29 28.38 | 22 29 26.81 (0.07) | 22 29 26.75 | 22 29 28.79 (0.05) | 22 29 26.81 | 22 29 28.38 | 22 29 27.24 | 22 29 28.38 | |||||||||||
| Spectral type | DAZ | DAZ | DAZ | DA | DA | DA | DA | DA | DAZ | DA_auto | DA | DAZ | DA | |||||||
| Effective temperature | [K] | 7487.0 (54) | 7502.0 (49) | 7559.0 (57) | 7486.0 (54) | 7445.0 (95) | 7511.0 | 7550.0 (60) | 7564.0 (64) | 8017.0 (38) | 7457.0 (35) | |||||||||
| log(g) | [cgs] | 8.06 (0.01) | 8.06 (0.01) | 8.07 (0.02) | 8.07 (0.01) | 8.06 (0.03) | 8.08 | 8.02 (0.1) | 8.08 (0.02) | 8.42 (0.09) | 7.77 (0.07) | |||||||||
| Mass | [M☉] | 0.627 (0.01) | 0.615 (0.01) | 0.637 (0.01) | 0.636 (0.01) | 0.632 (0.02) | 0.64 | 0.6 (0.06) | 0.641 (0.01) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||||||
| Cooling age | [Gyr] | 1.5000 | 1.4300 | 1.4110 (0.07) | 1.4050 | 1.3183 | ||||||||||||||
| log(H/He) | ||||||||||||||||||||
| log(C/He) | ||||||||||||||||||||
| log(Ca/He) | ||||||||||||||||||||
| log(Ca/H) | -8.47 | -8.33 (0.08) | ||||||||||||||||||
| 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] | 14.05 (0.08) | 14.19 (0.1) | 14.05 (0.08) | 14.19 (0.1) | 14.19 (0.1) | 14.05 | 14.05 (0.08) | 14.19 (0.1) | |||||||||||
| Distance | [pc] | 71.17 (0.4) | 70.47 (0.5) | 71.17 (0.4) | 70.48 (0.5) | 70.48 (0.5) | 71.17 | 71.17 (0.4) | 70.48 (0.5) | |||||||||||
| Composition | H | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 3.165215487 (0.06) | 3.055536799 (0.1) | 3.165 (0.06) | 3.056 | 4.0 | ||||||||||||||
| Proper motion (declination) | [mas/yr] | -127.7219603 (0.07) | -127.497951 (0.2) | -127.722 (0.07) | -127.498 | -126.8 | ||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | ||||||||||||||||||||
| V magnitude | ||||||||||||||||||||
| R magnitude | ||||||||||||||||||||
| I magnitude | ||||||||||||||||||||
| J magnitude | 16.99 (0.02) | 16.83 (0.1) | 16.83 (0.1) | |||||||||||||||||
| H magnitude | 16.43 (0.3) | 16.43 (0.3) | 16.43 (0.3) | |||||||||||||||||
| K magnitude | ||||||||||||||||||||
| u magnitude | 18.16 (0.01) | 18.17 (0.01) | 18.16 (0.01) | 18.16 (0.01) | 18.17 (0.02) | 18.17 | 18.16 (0.02) | |||||||||||||
| g magnitude | 17.69 (0.006) | 17.67 (0.007) | 17.69 (0.006) | 17.71 (0.01) | 17.71 | 17.69 (0.01) | ||||||||||||||
| r magnitude | 17.57 (0.006) | 17.55 (0.005) | 17.57 (0.006) | 17.57 (0.01) | 17.57 | 17.57 (0.01) | ||||||||||||||
| i magnitude | 17.56 (0.007) | 17.56 (0.003) | 17.56 (0.007) | 17.57 (0.01) | 17.56 | 17.56 (0.01) | ||||||||||||||
| z magnitude | 17.62 (0.02) | 17.62 (0.009) | 17.62 (0.02) | 17.64 (0.02) | 17.63 | 17.61 (0.02) | ||||||||||||||
| G magnitude | 17.52 (0.005) | 17.54 | 17.52 | 17.52 (0.003) | 17.54 | |||||||||||||||
| BP magnitude | 17.69 (0.005) | 17.68 | 17.68 | |||||||||||||||||
| RP magnitude | 17.24 (0.005) | 17.25 | 17.25 | |||||||||||||||||
| Pan g magnitude | 17.67 (0.009) | 17.67 (0.008) | 17.67 (0.008) | 17.67 (0.008) | ||||||||||||||||
| Pan r magnitude | 17.55 (0.005) | 17.55 (0.005) | 17.55 (0.005) | 17.55 (0.005) | ||||||||||||||||
| Pan i magnitude | 17.56 (0.003) | 17.56 (0.003) | 17.56 (0.003) | 17.56 (0.003) | ||||||||||||||||
| Pan z magnitude | 17.62 (0.01) | 17.62 (0.008) | 17.62 (0.008) | 17.62 (0.008) | ||||||||||||||||
| Pan y magnitude | 17.70 (0.007) | 17.70 (0.008) | 17.70 (0.008) | 17.70 (0.008) | ||||||||||||||||
| E(B-V) | 0.006 | |||||||||||||||||||
* Constant surface field
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