SDSS J082750.50+373831.2
All names: WD 0824+378, Gaia EDR3 905118934057915648, Gaia DR2 905118934057915648, SDSS J082750.50+373831.2, SDSS J082750.50+373831.1, GALEX J082750.5+373831, Gaia DR3 905118934057915648
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | 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 | 08 27 50.51 (0.3) | 08 27 50.50 | 08 27 50.51 (0.3) | 08 27 50.51 (0.3) | 08 27 50.51 | 08 27 50.26 | 08 27 50.50 | ||||||
| Declination | 37 38 31.19 (0.2) | 37 38 31.20 | 37 38 31.19 (0.3) | 37 38 31.20 (0.2) | 37 38 31.20 | 37 38 27.24 | 37 38 31.20 | ||||||
| Spectral type | DA | DA | DA | DA_auto | DA | DA | DA+MS | ||||||
| Effective temperature | [K] | 46927.0 (1717) | 25605.0 | 47147.0 (2029) | 44366.0 (1836) | ||||||||
| log(g) | [cgs] | 7.74 (0.1) | 7.63 | 7.80 (0.2) | 7.73 (0.2) | ||||||||
| Mass | [M☉] | 0.56 (0.06) | 0.459 | 0.56 (0.07) | |||||||||
| log(Luminosity) | [L☉] | 0.09 (0.1) | |||||||||||
| Cooling age | [Gyr] | 0.0023 (0.0005) | 0.0154 | ||||||||||
| 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] | 1.13 (0.3) | 1.17 (0.5) | 1.13 (0.3) | |||||||||
| Distance | [pc] | 886.52 (255) | 853.39 (389) | 886.52 (255) | |||||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -0.771975114 (0.3) | -1.081271462 (0.7) | -0.772 (0.3) | -3.4 | ||||||||
| Proper motion (declination) | [mas/yr] | -0.476661402 (0.3) | -0.271629138 (0.6) | -0.477 (0.3) | -2.7 | ||||||||
| 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 | 18.81 (0.02) | 18.80 (0.02) | 18.78 (0.03) | 18.77 | 18.79 (0.03) | ||||||||
| g magnitude | 19.11 (0.01) | 19.11 (0.01) | 19.11 (0.04) | 19.10 | 19.10 (0.04) | ||||||||
| r magnitude | 19.61 (0.02) | 19.61 (0.02) | 19.63 (0.03) | 19.62 | 19.63 (0.02) | ||||||||
| i magnitude | 19.91 (0.03) | 19.91 (0.03) | 19.91 (0.04) | 19.91 | 19.92 (0.04) | ||||||||
| z magnitude | 20.44 (0.2) | 20.44 (0.2) | 20.44 (0.2) | 20.44 | 20.44 (0.2) | ||||||||
| G magnitude | 19.38 (0.04) | 19.44 | 19.38 (0.005) | ||||||||||
| BP magnitude | 19.32 (0.04) | 19.25 | |||||||||||
| RP magnitude | 19.70 (0.1) | 19.71 | |||||||||||
| Pan g magnitude | 19.21 (0.009) | ||||||||||||
| Pan r magnitude | 19.61 (0.01) | ||||||||||||
| Pan i magnitude | 19.98 (0.01) | ||||||||||||
| Pan z magnitude | 20.26 (0.05) | ||||||||||||
| Pan y magnitude | 19.77 (0.2) | ||||||||||||
| E(B-V) | 0.031 | ||||||||||||
* Constant surface field
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