USNO-A2.0 1200-08054132
All names: SDSS J164925.65+310932.3, GALEX J164925.6+310932, Gaia DR3 1313111690120618880, Gaia EDR3 1313111690120618880, SDSS J164925.65+310932.4, WD 1647+312, USNO-A2.0 1200-08054132, SDSS J164925.64+310932.3, Gaia DR2 1313111690120618880
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | 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 49 25.66 (0.09) | 16 49 25.65 | 16 49 25.66 (0.1) | 16 49 25.66 | 16 49 25.65 (0.09) | 16 49 25.65 | 16 49 25.27 | 16 49 25.65 | ||||||
| Declination | 31 09 32.77 (0.1) | 31 09 32.43 | 31 09 32.75 (0.1) | 31 09 32.77 | 31 09 32.37 (0.1) | 31 09 32.38 | 31 09 28.44 | 31 09 32.37 | ||||||
| Spectral type | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 9085.0 | 9560.0 (70) | 9170.0 (170) | 9306.0 (70) | 9306.0 (55) | ||||||||
| log(g) | [cgs] | 7.04 | 7.71 (0.1) | 7.05 (0.05) | 7.38 (0.1) | 7.32 (0.1) | ||||||||
| Mass | [M☉] | 0.221 | 0.45 (0.04) | 0.223 (0.02) | 0.338 (0.03) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.3127 | 0.9120 | |||||||||||
| 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] | 3.56 (0.1) | 3.55 (0.2) | 3.56 | 3.56 (0.1) | |||||||||
| Distance | [pc] | 281.26 (1e+01) | 281.52 (12) | 281.26 | 281.26 (1e+01) | |||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 9.196621818 (0.1) | 9.205650699 (0.3) | 9.197 (0.1) | 16.3 | |||||||||
| Proper motion (declination) | [mas/yr] | 24.63506466 (0.1) | 24.56617182 (0.3) | 24.635 (0.1) | 25.1 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 17.90 (0.3) | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 17.90 (0.3) | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 19.04 (0.02) | 19.04 (0.02) | 19.05 (0.03) | 19.05 | 19.05 (0.03) | |||||||||
| g magnitude | 18.42 (0.007) | 18.42 (0.007) | 18.43 (0.01) | 18.43 | 18.42 (0.01) | |||||||||
| r magnitude | 18.47 (0.008) | 18.48 (0.008) | 18.48 (0.01) | 18.48 | 18.47 (0.01) | |||||||||
| i magnitude | 18.59 (0.01) | 18.59 (0.01) | 18.59 (0.02) | 18.58 | 18.58 (0.02) | |||||||||
| z magnitude | 18.66 (0.03) | 18.66 (0.03) | 18.68 (0.04) | 18.68 | 18.67 (0.04) | |||||||||
| G magnitude | 18.40 (0.01) | 18.43 | 18.40 | 18.40 (0.003) | ||||||||||
| BP magnitude | 18.54 (0.01) | 18.50 | ||||||||||||
| RP magnitude | 18.27 (0.02) | 18.28 | ||||||||||||
| Pan g magnitude | 18.42 (0.004) | |||||||||||||
| Pan r magnitude | 18.48 (0.005) | |||||||||||||
| Pan i magnitude | 18.58 (0.005) | |||||||||||||
| Pan z magnitude | 18.74 (0.007) | |||||||||||||
| Pan y magnitude | 18.77 (0.03) | |||||||||||||
| E(B-V) | 0.020 | |||||||||||||
* Constant surface field
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