SDSS J155728.17+435722.6
All names: Gaia DR3 1384789059293130496, SDSS J155728.17+435722.6, Gaia EDR3 1384789059293130496, WD 1555+440, SDSS J155728.18+435722.7, GALEX J155728.1+435721, SDSS J155728.18+435722.6, Gaia DR2 1384789059293130496
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 57 28.17 (0.3) | 15 57 28.18 | 15 57 28.17 (0.4) | 15 57 28.19 (0.3) | 15 57 28.18 | 15 57 28.32 | 15 57 28.18 | |||||
| Declination | 43 57 22.56 (0.4) | 43 57 22.64 | 43 57 22.56 (0.5) | 43 57 22.63 (0.4) | 43 57 22.67 | 43 57 20.52 | 43 57 22.67 | |||||
| Spectral type | DA | DA+M | DA_auto | DA | DA+M | DA | ||||||
| Effective temperature | [K] | 8133.0 | 7579.0 (154) | 7439.0 (157) | ||||||||
| log(g) | [cgs] | 8.04 | 8.25 (0.5) | 8.15 (0.5) | ||||||||
| Mass | [M☉] | 0.62 | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.0900 | ||||||||||
| 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] | 4.03 (0.4) | 3.79 (0.6) | 4.03 (0.4) | ||||||||
| Distance | [pc] | 248.04 (25) | 263.81 (39) | 248.04 (25) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -17.57087045 (0.4) | -16.76599243 (0.8) | -17.571 (0.4) | -9.6 | |||||||
| Proper motion (declination) | [mas/yr] | -4.265035154 (0.5) | -4.693432828 (1) | -4.265 (0.5) | -7.9 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | |||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 20.75 (0.06) | 20.75 (0.06) | 20.74 (0.07) | 20.73 | 20.73 (0.07) | |||||||
| g magnitude | 20.23 (0.02) | 20.23 (0.02) | 20.27 (0.03) | 20.26 | 20.25 (0.03) | |||||||
| r magnitude | 20.15 (0.02) | 20.15 (0.02) | 20.16 (0.03) | 20.16 (0.03) | ||||||||
| i magnitude | 20.07 (0.03) | 20.07 (0.03) | 20.08 (0.03) | 20.08 (0.03) | ||||||||
| z magnitude | 20.29 (0.1) | 20.29 (0.1) | 20.27 (0.1) | 20.25 (0.1) | ||||||||
| G magnitude | 20.08 (0.06) | 20.14 | 20.08 (0.006) | |||||||||
| BP magnitude | 20.25 (0.06) | 20.36 | ||||||||||
| RP magnitude | 19.84 (0.05) | 19.77 | ||||||||||
| Pan g magnitude | 20.17 (0.02) | |||||||||||
| Pan r magnitude | 20.08 (0.02) | |||||||||||
| Pan i magnitude | 20.16 (0.02) | |||||||||||
| Pan z magnitude | 20.24 (0.03) | |||||||||||
| Pan y magnitude | 20.39 (0.2) | |||||||||||
| E(B-V) | 0.017 | |||||||||||
* Constant surface field
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