SDSS J093848.40+404354.8
All names: SDSS J093848.40+404354.6, SDSS J093848.40+404354.9, Gaia EDR3 813487902741875072, WD 0935+409, SDSS J093848.40+404354.8, SDSS J093848.41+404354.9, Gaia DR3 813487902741875072, Gaia DR2 813487902741875072
| 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 38 48.38 (0.2) | 09 38 48.41 | 09 38 48.39 (0.2) | 09 38 48.38 | 09 38 48.41 (0.2) | 09 38 48.41 | 09 38 48.43 | 09 38 48.41 | ||||||
| Declination | 40 43 54.46 (0.1) | 40 43 54.91 | 40 43 54.48 (0.2) | 40 43 54.46 | 40 43 55.00 (0.1) | 40 43 54.89 | 40 43 50.16 | 40 43 54.90 | ||||||
| Spectral type | DC | DC | DC | DC | DC: | DC: | DC | DC | ||||||
| Effective temperature | [K] | 9253.0 | 9058.0 | 8918.0 (392) | 10104.0 (41) | 10110.0 (45) | ||||||||
| log(g) | [cgs] | 8.32 | 8.25 | 8.14 (0.08) | 8.50 (0.4) | 9.44 (0.4) | ||||||||
| Mass | [M☉] | 0.803 | 0.738 | 0.662 (0.08) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 1.2130 | 1.1640 | |||||||||||
| log(H/He) | ||||||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | ||||||||||||||
| log(Ca/H) | ||||||||||||||
| Parallax | [mas] | 6.29 (0.2) | 6.51 (0.4) | 6.29 | 6.29 (0.2) | |||||||||
| Distance | [pc] | 158.92 (6) | 153.55 (9) | 158.92 | 158.92 (6) | |||||||||
| Composition | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -16.4924014 (0.2) | -16.60979675 (0.4) | -16.492 (0.2) | -10.9 | |||||||||
| Proper motion (declination) | [mas/yr] | -33.4674747 (0.2) | -33.43491514 (0.4) | -33.467 (0.2) | -32.6 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 19.14 (0.02) | 19.14 (0.02) | 19.16 (0.03) | 19.15 | 19.14 (0.03) | |||||||||
| g magnitude | 18.87 (0.009) | 18.87 (0.009) | 19.00 (0.02) | 18.99 | 18.98 (0.02) | |||||||||
| r magnitude | 18.95 (0.01) | 18.95 (0.01) | 18.95 (0.03) | 18.95 | 18.93 (0.03) | |||||||||
| i magnitude | 19.06 (0.02) | 19.06 (0.02) | 19.04 (0.03) | 19.03 | 19.02 (0.03) | |||||||||
| z magnitude | 19.19 (0.06) | 19.19 (0.06) | 19.18 (0.07) | 19.17 | 19.17 (0.07) | |||||||||
| G magnitude | 18.87 (0.02) | 18.92 | 18.87 | 18.87 (0.004) | ||||||||||
| BP magnitude | 19.01 (0.02) | 18.92 | ||||||||||||
| RP magnitude | 18.79 (0.05) | 18.64 | ||||||||||||
| Pan g magnitude | 18.90 (0.0008) | |||||||||||||
| Pan r magnitude | 18.93 (0.007) | |||||||||||||
| Pan i magnitude | 19.05 (0.006) | |||||||||||||
| Pan z magnitude | 19.18 (0.02) | |||||||||||||
| Pan y magnitude | 19.22 (0.04) | |||||||||||||
| E(B-V) | 0.008 | |||||||||||||
* Constant surface field
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