SDSS J164539.75+305931.6
All names: SDSS J164539.75+305931.7, GALEX J164539.6+305930, J1645+3059, Gaia DR2 1311660540930405632, Gaia EDR3 1311660540930405632, WDJ164539.76+305931.71, WD 1643+310, SDSS J164539.75+305931.6, SDSS J164539.76+305931.7, Gaia DR3 1311660540930405632
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Blouin & Xu 2022 | 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 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 45 39.73 (0.08) | 16 45 39.75 | 16 45 39.73 (0.1) | 16 45 39.73 | 16 45 39.76 (0.08) | 16 45 39.73 | 16 45 39.76 | 16 45 39.72 | 16 45 39.76 | ||||||||||
| Declination | 30 59 31.53 (0.1) | 30 59 31.68 | 30 59 31.54 (0.1) | 30 59 31.53 | 30 59 31.71 (0.1) | 30 59 31.54 | 30 59 31.70 | 30 59 30.84 | 30 59 31.70 | ||||||||||
| Spectral type | DAZ | DAZ | DAZ | DA | DA | DA | DA | DA | DA | DA | DAZ | DA | |||||||
| Effective temperature | [K] | 7140.0 (46) | 7193.0 (44) | 7078.0 (53) | 7140.0 (46) | 7016.0 | 7060.0 (110) | 7325.0 (143) | 7723.0 (65) | 7122.0 (48) | |||||||||
| log(g) | [cgs] | 8.17 (0.01) | 8.20 (0.02) | 8.17 (0.02) | 8.18 (0.02) | 8.15 | 7.78 (0.2) | 8.23 (0.03) | 8.61 (0.2) | 7.86 (0.1) | |||||||||
| Mass | [M☉] | 0.698 (0.01) | 0.698 (0.01) | 0.695 (0.01) | 0.706 (0.02) | 0.683 | 0.47 (0.1) | 0.738 (0.03) | |||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||||
| Cooling age | [Gyr] | 2.1000 | 1.9900 | 1.8940 | 1.1482 | ||||||||||||||
| log(H/He) | |||||||||||||||||||
| log(C/He) | |||||||||||||||||||
| log(Ca/He) | |||||||||||||||||||
| log(Ca/H) | -7.66 | -7.37 (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] | 10.95 (0.1) | 11.04 (0.1) | 10.95 (0.1) | 11.04 (0.1) | 10.95 | 10.95 (0.1) | 11.04 (0.1) | |||||||||||
| Distance | [pc] | 91.33 (1) | 90.58 (1) | 91.33 (1) | 90.57 (1) | 91.33 | 91.33 (1) | 90.57 (1) | |||||||||||
| Composition | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -22.08761011 (0.1) | -22.4995067 (0.2) | -22.088 (0.1) | -22.5 | -21.1 | |||||||||||||
| Proper motion (declination) | [mas/yr] | -10.89509089 (0.1) | -11.02745046 (0.3) | -10.895 (0.1) | -11.027 | -17.1 | |||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | |||||||||||||||||||
| V magnitude | |||||||||||||||||||
| R magnitude | |||||||||||||||||||
| I magnitude | |||||||||||||||||||
| J magnitude | 17.77 (0.03) | 17.83 (0.03) | |||||||||||||||||
| H magnitude | 17.65 (0.04) | 17.67 (0.04) | |||||||||||||||||
| K magnitude | 17.50 (0.09) | 17.60 (0.1) | |||||||||||||||||
| u magnitude | 19.12 (0.02) | 19.11 (0.02) | 19.12 (0.02) | 19.12 (0.02) | 19.06 (0.03) | 19.05 | 19.09 (0.03) | ||||||||||||
| g magnitude | 18.58 (0.008) | 18.58 (0.008) | 18.58 (0.008) | 18.57 (0.02) | 18.56 | 18.59 (0.02) | |||||||||||||
| r magnitude | 18.45 (0.008) | 18.45 (0.008) | 18.45 (0.008) | 18.43 (0.01) | 18.42 | 18.45 (0.01) | |||||||||||||
| i magnitude | 18.41 (0.01) | 18.41 (0.01) | 18.41 (0.01) | 18.38 (0.01) | 18.37 | 18.40 (0.01) | |||||||||||||
| z magnitude | 18.46 (0.03) | 18.46 (0.03) | 18.46 (0.03) | 18.44 (0.03) | 18.43 | 18.46 (0.03) | |||||||||||||
| G magnitude | 18.41 (0.02) | 18.43 | 18.41 | 18.41 (0.003) | 18.43 | ||||||||||||||
| BP magnitude | 18.59 (0.02) | 18.62 | 18.62 | ||||||||||||||||
| RP magnitude | 18.11 (0.02) | 18.07 | 18.07 | ||||||||||||||||
| Pan g magnitude | 18.60 (0.007) | 18.60 (0.005) | 18.59 (0.007) | ||||||||||||||||
| Pan r magnitude | 18.44 (0.01) | 18.44 (0.01) | 18.44 (0.01) | ||||||||||||||||
| Pan i magnitude | 18.42 (0.004) | 18.42 (0.005) | 18.42 (0.004) | ||||||||||||||||
| Pan z magnitude | 18.46 (0.007) | 18.46 (0.007) | 18.46 (0.007) | ||||||||||||||||
| Pan y magnitude | 18.47 (0.02) | 18.47 (0.01) | 18.47 (0.03) | ||||||||||||||||
| E(B-V) | 0.011 | ||||||||||||||||||
* Constant surface field
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