PG 0920+217
All names: PG 0920+217, Gaia EDR3 637744712937476608, WD 0920+216, Gaia DR3 637744712937476608, Gaia DR2 637744712937476608, GALEX J092339.2+212900, SDSS J092339.23+212859.9, SDSS J092339.23+212900.0, SDSS J092339.22+212859.9, LB 3025, SDSS J092339.23+212860.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 23 39.19 (0.08) | 09 23 39.22 | 09 23 39.19 (0.2) | 09 23 39.19 | 09 23 39.24 (0.08) | 09 23 38.54 | 09 23 39.23 | ||||||
| Declination | 21 28 59.05 (0.07) | 21 29 00.00 | 21 28 59.09 (0.2) | 21 28 59.05 | 21 29 00.33 (0.07) | 21 29 00.24 | 21 28 59.98 | ||||||
| Spectral type | DA | DA | DA | DA2.7 | DA4 | DA | DA | ||||||
| Effective temperature | [K] | 16977.0 | 18910.0 (296) | 18052.0 (295) | 19340.0 (104) | ||||||||
| log(g) | [cgs] | 7.82 | 7.94 (0.05) | 7.84 (0.02) | 7.86 (0.02) | ||||||||
| Mass | [M☉] | 0.518 | 0.59 (0.03) | 0.532 (0.01) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.0928 | |||||||||||
| 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] | 7.30 (0.09) | 7.52 (0.1) | 7.30 | 7.30 (0.09) | ||||||||
| Distance | [pc] | 137.05 (2) | 132.96 (3) | 139.00 | 137.05 | 137.05 (2) | |||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -48.7028661 (0.1) | -48.02947847 (0.3) | -48.703 (0.1) | |||||||||
| Proper motion (declination) | [mas/yr] | -79.70537676 (0.09) | -80.3953395 (0.4) | -79.705 (0.09) | |||||||||
| Variability | NOV | ||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | 16.50 | ||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 16.38 (0.006) | 16.39 (0.006) | 16.39 (0.03) | ||||||||||
| g magnitude | 16.24 (0.004) | 16.24 (0.004) | 16.28 (0.02) | ||||||||||
| r magnitude | 16.60 (0.004) | 16.60 (0.004) | 16.60 (0.02) | ||||||||||
| i magnitude | 16.86 (0.005) | 16.86 (0.005) | 16.91 (0.02) | ||||||||||
| z magnitude | 17.16 (0.01) | 17.16 (0.01) | 17.20 (0.02) | ||||||||||
| G magnitude | 16.43 (0.004) | 16.45 | 16.43 | 16.43 (0.003) | |||||||||
| BP magnitude | 16.36 (0.004) | 16.34 | |||||||||||
| RP magnitude | 16.58 (0.007) | 16.59 | |||||||||||
| Pan g magnitude | 16.29 (0.003) | ||||||||||||
| Pan r magnitude | 16.61 (0.003) | ||||||||||||
| Pan i magnitude | 16.91 (0.003) | ||||||||||||
| Pan z magnitude | 17.16 (0.005) | ||||||||||||
| Pan y magnitude | 17.31 (0.009) | ||||||||||||
| E(B-V) | 0.007 | ||||||||||||
* Constant surface field
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