WD 0018-000
All names: J0020+0011, SDSS J002040.10+001106.5, SDSS J002040.11+001106.6, Gaia EDR3 2545305410405677312, WD 0018-000, SDSS J002040.09+001106.3, SDSS J002040.10+001106.2, LBQS 0018-0005, SDSS J002040.11+001106.5, WDJ002040.10+001106.51, 2SLAQ J002040.09+001106.3, Gaia DR3 2545305410405677312, GALEX J002040.0+001106, SDSS J002040.10+001106.3, Gaia DR2 2545305410405677312
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 20 40.09 (0.1) | 00 20 40.10 | 00 20 40.09 (0.2) | 00 20 40.09 | 00 20 40.10 (0.1) | 00 20 40.09 | 00 20 40.10 | 00 20 39.77 | 00 20 40.11 | 00 20 40.11 | |||||||||
| Declination | 00 11 05.58 (0.1) | 00 11 06.25 | 00 11 05.61 (0.1) | 00 11 05.58 | 00 11 06.51 (0.1) | 00 11 05.61 | 00 11 06.36 | 00 11 08.88 | 00 11 06.57 | 00 11 06.58 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA7.5 | DA | DA | DA6.5 | DA | DA | |||||||
| Effective temperature | [K] | 6956.0 (59) | 7091.0 (59) | 6956.0 (60) | 6988.0 | 7110.0 (80) | 7069.0 (112) | 7743.0 (42) | 6975.0 (48) | 7786.0 (36) | |||||||||
| log(g) | [cgs] | 8.06 (0.02) | 8.10 (0.03) | 8.06 (0.03) | 8.07 | 8.02 (0.1) | 8.10 (0.03) | 8.94 (0.07) | 7.86 (0.08) | 8.98 (0.03) | |||||||||
| Mass | [M☉] | 0.626 (0.02) | 0.655 (0.03) | 0.626 (0.03) | 0.632 | 0.6 (0.08) | 0.651 (0.03) | 0.519 (0.04) | |||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||||
| Cooling age | [Gyr] | 1.7700 | 1.6770 | 1.5488 | |||||||||||||||
| 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] | 10.52 (0.2) | 10.52 (0.3) | 10.52 (0.3) | 10.52 | 10.52 (0.2) | 10.52 (0.3) | ||||||||||||
| Distance | [pc] | 95.03 (2) | 95.06 (2) | 95.03 (2) | 95.03 | 95.03 (2) | 95.03 (2) | ||||||||||||
| Composition | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -10.8148054 (0.2) | -11.10754549 (0.6) | -10.815 (0.2) | -11.108 | -9.7 | -12.0 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -58.11704342 (0.2) | -58.20292023 (0.3) | -58.117 (0.2) | -58.203 | -57.5 | -56.0 | ||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | |||||||||||||||||||
| V magnitude | |||||||||||||||||||
| R magnitude | |||||||||||||||||||
| I magnitude | |||||||||||||||||||
| J magnitude | 17.81 (0.05) | ||||||||||||||||||
| H magnitude | 17.56 (0.07) | ||||||||||||||||||
| K magnitude | 17.74 (0.1) | ||||||||||||||||||
| u magnitude | 19.20 (0.02) | 19.14 (0.02) | 19.20 (0.02) | 19.16 (0.03) | 19.21 (0.04) | 19.19 | 19.17 (0.04) | 19.19 (0.03) | |||||||||||
| g magnitude | 18.61 (0.008) | 18.61 (0.008) | 18.61 (0.008) | 18.62 (0.03) | 18.62 | 18.60 (0.03) | 18.62 (0.03) | ||||||||||||
| r magnitude | 18.43 (0.008) | 18.43 (0.008) | 18.42 (0.009) | 18.46 (0.02) | 18.47 | 18.44 (0.02) | 18.47 (0.02) | ||||||||||||
| i magnitude | 18.40 (0.01) | 18.40 (0.01) | 18.35 (0.01) | 18.37 (0.03) | 18.39 | 18.34 (0.03) | 18.39 (0.02) | ||||||||||||
| z magnitude | 18.46 (0.03) | 18.46 (0.03) | 18.42 (0.04) | 18.44 (0.05) | 18.43 | 18.40 (0.05) | 18.43 (0.04) | ||||||||||||
| G magnitude | 18.41 (0.02) | 18.44 | 18.41 | 18.41 (0.003) | 18.44 | ||||||||||||||
| BP magnitude | 18.60 (0.02) | 18.61 | 18.61 | ||||||||||||||||
| RP magnitude | 18.10 (0.01) | 18.08 | 18.08 | ||||||||||||||||
| Pan g magnitude | 18.61 (0.008) | 18.61 (0.008) | |||||||||||||||||
| Pan r magnitude | 18.44 (0.008) | 18.44 (0.007) | |||||||||||||||||
| Pan i magnitude | 18.41 (0.006) | 18.41 (0.006) | |||||||||||||||||
| Pan z magnitude | 18.45 (0.01) | 18.45 (0.01) | |||||||||||||||||
| Pan y magnitude | 18.49 (0.03) | 18.49 (0.03) | |||||||||||||||||
| E(B-V) | 0.004 | ||||||||||||||||||
* Constant surface field
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