SDSS J092355.89+090209.6
All names: GALEX J092355.8+090209, Gaia DR2 587640998851785088, SDSS J092355.90+090209.7, SDSS J092355.90+090209.2, SDSS J092355.89+090209.6, WD 0921+092, Gaia DR3 587640998851785088, Gaia EDR3 587640998851785088
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | 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 | 09 23 55.88 (0.2) | 09 23 55.90 | 09 23 55.89 (0.3) | 09 23 55.88 | 09 23 55.90 (0.2) | 09 23 55.90 | 09 23 55.56 | 09 23 55.90 | ||||||
| Declination | 09 02 09.06 (0.2) | 09 02 09.65 | 09 02 09.08 (0.3) | 09 02 09.06 | 09 02 09.74 (0.2) | 09 02 09.65 | 09 02 04.92 | 09 02 09.65 | ||||||
| Spectral type | DC | DC | DC | DC | DC: | DC: | DC | DC | ||||||
| Effective temperature | [K] | 8844.0 | 8610.0 | 8180.0 (276) | 10114.0 (51) | 10120.0 (53) | ||||||||
| log(g) | [cgs] | 8.28 | 8.20 | 8.01 (0.07) | 8.36 (0.4) | 8.67 (0.7) | ||||||||
| Mass | [M☉] | 0.775 | 0.705 | 0.581 (0.06) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 1.2580 | 1.2420 | |||||||||||
| log(H/He) | ||||||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | ||||||||||||||
| log(Ca/H) | ||||||||||||||
| Parallax | [mas] | 7.56 (0.2) | 7.61 (0.3) | 7.56 | 7.56 (0.2) | |||||||||
| Distance | [pc] | 132.25 (4) | 131.38 (5) | 132.25 | 132.25 (4) | |||||||||
| Composition | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -14.90827784 (0.2) | -15.15405355 (0.5) | -14.908 (0.2) | -4.3 | |||||||||
| Proper motion (declination) | [mas/yr] | -42.51256439 (0.2) | -42.19913742 (0.5) | -42.513 (0.2) | -43.3 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.95 (0.02) | 18.95 (0.02) | 18.95 (0.03) | 18.94 | 18.95 (0.03) | |||||||||
| g magnitude | 18.64 (0.008) | 18.64 (0.008) | 18.66 (0.02) | 18.65 | 18.67 (0.02) | |||||||||
| r magnitude | 18.65 (0.009) | 18.65 (0.009) | 18.68 (0.03) | 18.68 | 18.68 (0.03) | |||||||||
| i magnitude | 18.69 (0.01) | 18.69 (0.01) | 18.72 (0.02) | 18.72 | 18.72 (0.02) | |||||||||
| z magnitude | 18.79 (0.04) | 18.79 (0.04) | 18.79 (0.04) | 18.80 | 18.81 (0.04) | |||||||||
| G magnitude | 18.61 (0.03) | 18.65 | 18.61 | 18.61 (0.003) | ||||||||||
| BP magnitude | 18.69 (0.03) | 18.68 | ||||||||||||
| RP magnitude | 18.39 (0.03) | 18.40 | ||||||||||||
| Pan g magnitude | 18.67 (0.007) | |||||||||||||
| Pan r magnitude | 18.67 (0.004) | |||||||||||||
| Pan i magnitude | 18.75 (0.005) | |||||||||||||
| Pan z magnitude | 18.91 (0.02) | |||||||||||||
| Pan y magnitude | 18.91 (0.03) | |||||||||||||
| E(B-V) | 0.007 | |||||||||||||
* Constant surface field
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