SDSS J164645.22+200701.5
All names: Gaia EDR3 4563213743377962752, SDSS J164645.22+200701.5, SDSS J164645.21+200701.4, Gaia DR3 4563213743377962752, GALEX J164645.2+200701, Gaia DR2 4563213739079999744, WD 1644+202
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 46 45.22 (0.2) | 16 46 45.22 | 16 46 45.22 (0.3) | 16 46 45.22 | 16 46 45.22 (0.2) | 16 46 45.22 | 16 46 44.52 | 16 46 45.22 | |||||
| Declination | 20 07 01.36 (0.2) | 20 07 01.46 | 20 07 01.36 (0.3) | 20 07 01.36 | 20 07 01.52 (0.2) | 20 07 01.52 | 20 06 58.68 | 20 07 01.52 | |||||
| Spectral type | DA: | DC | DA | DA: | DA: | DA: | DA | ||||||
| Effective temperature | [K] | 9762.0 | 10167.0 (544) | 11694.0 (383) | 11210.0 (411) | ||||||||
| log(g) | [cgs] | 7.55 | 7.44 (0.1) | 7.66 (0.4) | 7.60 (0.4) | ||||||||
| Mass | [M☉] | 0.376 | 0.315 (0.08) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.3929 | |||||||||||
| 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] | 2.75 (0.3) | 2.76 (0.5) | 2.75 | 2.75 (0.3) | ||||||||
| Distance | [pc] | 363.57 (33) | 362.06 (63) | 363.57 | 363.57 (33) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -0.791650436 (0.2) | -0.518336 (0.7) | -0.792 (0.2) | 3.7 | ||||||||
| Proper motion (declination) | [mas/yr] | -10.09170638 (0.2) | -9.516319298 (0.8) | -10.092 (0.2) | -12.2 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.52 (0.03) | 19.52 (0.03) | 19.61 (0.04) | 19.61 | 19.60 (0.04) | ||||||||
| g magnitude | 19.38 (0.01) | 19.38 (0.01) | 19.39 (0.02) | 19.38 | 19.39 (0.02) | ||||||||
| r magnitude | 19.53 (0.01) | 19.53 (0.01) | 19.52 (0.02) | 19.52 | 19.51 (0.02) | ||||||||
| i magnitude | 19.63 (0.02) | 19.63 (0.02) | 19.66 (0.03) | 19.66 | 19.66 (0.02) | ||||||||
| z magnitude | 19.83 (0.09) | 19.83 (0.09) | 19.69 (0.09) | 19.69 | 19.68 (0.09) | ||||||||
| G magnitude | 19.40 (0.04) | 19.44 | 19.40 | 19.40 (0.004) | |||||||||
| BP magnitude | 19.48 (0.04) | 19.10 | |||||||||||
| RP magnitude | 19.34 (0.04) | 19.34 | |||||||||||
| Pan g magnitude | 19.40 (0.006) | ||||||||||||
| Pan r magnitude | 19.52 (0.01) | ||||||||||||
| Pan i magnitude | 19.65 (0.007) | ||||||||||||
| Pan z magnitude | 19.82 (0.02) | ||||||||||||
| Pan y magnitude | 19.80 (0.04) | ||||||||||||
| E(B-V) | 0.045 | ||||||||||||
* Constant surface field
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