WD 0850+190
All names: Gaia DR2 660431181166277120, J0852+1850, SDSS J085255.01+185013.4, SDSS J085255.01+185013.5, Gaia DR3 660431181166277120, Gaia EDR3 660431181166277120, WD 0850+190.2, WD 0850+190, WDJ085255.05+185013.86, SDSS J085255.02+185013.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Blouin & Xu 2022 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 52 54.93 (0.1) | 08 52 55.02 | 08 52 54.93 (0.1) | 08 52 54.93 | 08 52 55.05 (0.1) | 08 52 54.93 | 08 52 54.53 | 08 52 55.01 | |||||||||
| Declination | 18 50 12.60 (0.05) | 18 50 13.44 | 18 50 12.64 (0.07) | 18 50 12.60 | 18 50 13.86 (0.05) | 18 50 12.64 | 18 50 14.28 | 18 50 13.47 | |||||||||
| Spectral type | DAZ | DAZ | DAZ | DA | DA | DA | DA | ? | DAZ | DA | |||||||
| Effective temperature | [K] | 7978.0 (59) | 8108.0 (56) | 8085.0 (68) | 7981.0 (59) | 8014.0 | 8172.0 (124) | 7892.0 (33) | |||||||||
| log(g) | [cgs] | 7.96 (0.02) | 7.97 (0.02) | 8.00 (0.03) | 7.94 (0.02) | 7.95 | 8.01 (0.03) | 7.84 (0.06) | |||||||||
| Mass | [M☉] | 0.571 (0.01) | 0.561 (0.02) | 0.597 (0.02) | 0.559 (0.02) | 0.564 | 0.603 (0.03) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||
| Cooling age | [Gyr] | 1.0800 | 1.0900 | 0.9938 | |||||||||||||
| log(H/He) | |||||||||||||||||
| log(C/He) | |||||||||||||||||
| log(Ca/He) | |||||||||||||||||
| log(Ca/H) | -6.94 | -6.99 (0.07) | |||||||||||||||
| 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] | 10.35 (0.1) | 10.20 (0.1) | 10.35 (0.1) | 10.20 (0.1) | 10.35 | 10.35 (0.1) | 10.20 (0.1) | |||||||||
| Distance | [pc] | 96.66 (1) | 98.04 (1) | 96.66 (1) | 97.99 (1) | 96.66 | 96.66 (1) | 97.99 (1) | |||||||||
| Composition | H | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -108.2627643 (0.1) | -108.5993902 (0.2) | -108.263 (0.1) | -108.599 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -78.26251861 (0.09) | -78.31365021 (0.2) | -78.263 (0.09) | -78.314 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | |||||||||||||||||
| V magnitude | |||||||||||||||||
| R magnitude | |||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 17.40 (0.03) | ||||||||||||||||
| H magnitude | 17.33 (0.05) | ||||||||||||||||
| K magnitude | 17.36 (0.08) | ||||||||||||||||
| u magnitude | 18.39 (0.01) | 18.40 (0.01) | 18.39 (0.01) | 18.39 (0.01) | 18.39 (0.02) | ||||||||||||
| g magnitude | 17.93 (0.006) | 17.93 (0.006) | 17.94 (0.006) | 17.96 (0.02) | |||||||||||||
| r magnitude | 17.87 (0.007) | 17.87 (0.007) | 17.86 (0.006) | 17.87 (0.01) | |||||||||||||
| i magnitude | 17.91 (0.008) | 17.91 (0.008) | 17.88 (0.007) | 17.94 (0.02) | |||||||||||||
| z magnitude | 18.00 (0.02) | 18.00 (0.02) | 18.01 (0.02) | 17.99 (0.03) | |||||||||||||
| G magnitude | 17.83 (0.008) | 17.85 | 17.83 | 17.83 (0.003) | 17.85 | ||||||||||||
| BP magnitude | 17.96 (0.008) | 17.95 | 17.95 | ||||||||||||||
| RP magnitude | 17.59 (0.01) | 17.58 | 17.58 | ||||||||||||||
| Pan g magnitude | 17.92 (0.004) | 17.92 (0.005) | 17.92 (0.004) | ||||||||||||||
| Pan r magnitude | 17.88 (0.005) | 17.88 (0.006) | 17.88 (0.005) | ||||||||||||||
| Pan i magnitude | 17.91 (0.004) | 17.91 (0.004) | 17.91 (0.004) | ||||||||||||||
| Pan z magnitude | 18.00 (0.009) | 18.00 (0.007) | 18.00 (0.009) | ||||||||||||||
| Pan y magnitude | 18.04 (0.02) | 18.04 (0.02) | 18.05 (0.02) | ||||||||||||||
| E(B-V) | 0.004 | ||||||||||||||||
* Constant surface field
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