SDSS J164946.33+323141.7
All names: Gaia DR2 1314093141687569664, GALEX J164946.3+323141, SDSS J164946.33+323141.7, SDSS J164946.33+323141.8, Gaia EDR3 1314093141687569664, Gaia DR3 1314093141687569664, WD 1647+326
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 49 46.33 (0.2) | 16 49 46.34 | 16 49 46.33 (0.3) | 16 49 46.34 (0.2) | 16 49 46.34 | 16 49 46.15 | 16 49 46.33 | ||||||
| Declination | 32 31 42.21 (0.3) | 32 31 41.78 | 32 31 42.19 (0.4) | 32 31 41.71 (0.3) | 32 31 41.79 | 32 31 35.76 | 32 31 41.79 | ||||||
| Spectral type | DC: | DC: | DC+M | DC: | DC: | DCM: | DC | ||||||
| Effective temperature | [K] | 9847.0 | 9835.0 | 10415.0 (280) | 10433.0 (283) | ||||||||
| log(g) | [cgs] | 8.18 | 8.12 | 8.19 (0.6) | 9.06 (0.6) | ||||||||
| Mass | [M☉] | 0.71 | 0.654 | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.8156 | 0.7798 | ||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 3.28 (0.3) | 3.20 (0.4) | 3.28 (0.3) | |||||||||
| Distance | [pc] | 305.24 (31) | 312.91 (44) | 305.24 (31) | |||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -9.315724347 (0.3) | -9.326888062 (0.7) | -9.316 (0.3) | -7.8 | ||||||||
| Proper motion (declination) | [mas/yr] | 30.9448054 (0.4) | 30.67668863 (1) | 30.945 (0.4) | 30.6 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 20.13 (0.04) | 20.19 (0.08) | 20.20 (0.07) | 20.20 | 20.22 (0.08) | ||||||||
| g magnitude | 19.96 (0.01) | 19.95 (0.02) | 19.99 (0.03) | 19.99 | 19.99 (0.03) | ||||||||
| r magnitude | 20.04 (0.02) | 19.94 (0.03) | 20.00 (0.03) | 19.99 | 19.99 (0.03) | ||||||||
| i magnitude | 20.17 (0.03) | 20.24 (0.04) | 20.30 (0.04) | 20.29 | 20.30 (0.04) | ||||||||
| z magnitude | 20.53 (0.2) | 20.20 (0.2) | 20.25 (0.2) | 20.24 | 20.25 (0.2) | ||||||||
| G magnitude | 19.98 (0.06) | 20.06 | 19.98 (0.005) | ||||||||||
| BP magnitude | 20.16 (0.06) | 20.01 | |||||||||||
| RP magnitude | 19.96 (0.08) | 19.92 | |||||||||||
| Pan g magnitude | 19.96 (0.009) | ||||||||||||
| Pan r magnitude | 20.07 (0.02) | ||||||||||||
| Pan i magnitude | 20.19 (0.01) | ||||||||||||
| Pan z magnitude | 20.32 (0.04) | ||||||||||||
| Pan y magnitude | 19.88 (0.2) | ||||||||||||
| E(B-V) | 0.020 | ||||||||||||
* Constant surface field
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