WD 0857+023
All names: SDSS J090030.95+021009.3, SDSS J090030.96+021009.3, Gaia EDR3 577005422876906624, SDSS J090030.96+021009.4, Gaia DR2 577005422876906624, SDSS J090030.95+021009.4, Gaia DR3 577005422876906624, GALEX J090030.8+021008, WD 0857+023
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 00 30.88 (0.3) | 09 00 30.95 | 09 00 30.88 (0.4) | 09 00 30.96 (0.3) | 09 00 30.95 | 09 00 29.62 | 09 00 30.96 | ||||||
| Declination | 02 10 08.77 (0.2) | 02 10 09.36 | 02 10 08.79 (0.3) | 02 10 09.43 (0.2) | 02 10 09.42 | 02 10 07.68 | 02 10 09.38 | ||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 9718.0 | 9727.0 | 10446.0 (260) | 10398.0 (240) | ||||||||
| log(g) | [cgs] | 7.89 | 7.82 | 8.09 (0.5) | 8.86 (0.6) | ||||||||
| Mass | [M☉] | 0.538 | 0.482 | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.5664 | 0.5357 | ||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 3.65 (0.4) | 3.40 (0.5) | 3.65 (0.4) | |||||||||
| Distance | [pc] | 274.31 (30) | 293.94 (47) | 274.31 (30) | |||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -75.25436708 (0.4) | -75.4213786 (0.7) | -75.254 (0.4) | -71.9 | ||||||||
| Proper motion (declination) | [mas/yr] | -41.22214175 (0.3) | -41.00728987 (0.6) | -41.222 (0.3) | -36.6 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.66 (0.03) | 19.66 (0.03) | 19.63 (0.04) | 19.60 | 19.64 (0.04) | ||||||||
| g magnitude | 19.41 (0.01) | 19.41 (0.01) | 19.48 (0.03) | 19.49 | 19.49 (0.03) | ||||||||
| r magnitude | 19.50 (0.02) | 19.50 (0.02) | 19.55 (0.02) | 19.54 | 19.54 (0.02) | ||||||||
| i magnitude | 19.69 (0.02) | 19.68 (0.03) | 19.64 (0.03) | 19.64 | 19.63 (0.03) | ||||||||
| z magnitude | 19.85 (0.09) | 19.85 (0.09) | 19.77 (0.1) | 19.76 | 19.75 (0.1) | ||||||||
| G magnitude | 19.45 (0.04) | 19.50 | 19.45 (0.005) | ||||||||||
| BP magnitude | 19.57 (0.04) | 19.59 | |||||||||||
| RP magnitude | 19.46 (0.07) | 19.34 | |||||||||||
| Pan g magnitude | 19.48 (0.006) | ||||||||||||
| Pan r magnitude | 19.49 (0.008) | ||||||||||||
| Pan i magnitude | 19.68 (0.009) | ||||||||||||
| Pan z magnitude | 19.82 (0.01) | ||||||||||||
| Pan y magnitude | 19.93 (0.04) | ||||||||||||
| E(B-V) | 0.028 | ||||||||||||
* Constant surface field
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