WD 0806+475
All names: SDSS J080938.87+472522.0, GALEX J080938.8+472522, SDSS J080938.87+472522.1, SDSS J080938.86+472522.1, SDSS J080938.86+472522.0, Gaia EDR3 929958727091702144, Gaia DR2 929958727091702144, Gaia DR3 929958727091702144, WD 0806+475
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 09 38.82 (0.3) | 08 09 38.87 | 08 09 38.82 (0.3) | 08 09 38.86 (0.3) | 08 09 38.87 | 08 09 37.58 | 08 09 38.87 | 08 09 38.87 | ||||||
| Declination | 47 25 21.90 (0.3) | 47 25 22.09 | 47 25 21.90 (0.3) | 47 25 22.06 (0.3) | 47 25 22.08 | 47 25 15.60 | 47 25 22.05 | 47 25 22.04 | ||||||
| Spectral type | DA | DA | DA | DA | DA3.3 | DA | DA | |||||||
| Effective temperature | [K] | 11623.0 | 12190.0 (330) | 15245.0 (521) | 15609.0 (396) | 15328.0 (559) | ||||||||
| log(g) | [cgs] | 7.40 | 8.27 (0.1) | 8.00 (0.08) | 8.01 (0.07) | 8.04 (0.08) | ||||||||
| Mass | [M☉] | 0.327 | 0.78 (0.06) | 0.618 (0.04) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.2156 | 0.5754 | |||||||||||
| 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] | 2.19 (0.4) | 2.03 (0.5) | 2.19 (0.4) | ||||||||||
| Distance | [pc] | 456.64 (76) | 493.81 (119) | 456.64 (76) | ||||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -28.25817805 (0.4) | -27.82285326 (0.7) | -28.258 (0.4) | 0.2 | -2.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -9.869669359 (0.3) | -10.69738188 (0.6) | -9.87 (0.3) | -5.7 | -6.0 | ||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 19.69 (0.03) | 19.69 (0.03) | 19.70 (0.03) | 19.70 | 19.70 (0.03) | 19.70 (0.03) | ||||||||
| g magnitude | 19.32 (0.01) | 19.32 (0.01) | 19.35 (0.02) | 19.36 | 19.35 (0.02) | 19.36 (0.02) | ||||||||
| r magnitude | 19.51 (0.02) | 19.51 (0.02) | 19.53 (0.02) | 19.53 | 19.52 (0.02) | 19.53 (0.02) | ||||||||
| i magnitude | 19.72 (0.02) | 19.72 (0.02) | 19.74 (0.03) | 19.74 | 19.73 (0.03) | 19.74 (0.03) | ||||||||
| z magnitude | 20.11 (0.1) | 20.11 (0.1) | 20.16 (0.1) | 20.16 | 20.13 (0.1) | 20.16 (0.1) | ||||||||
| G magnitude | 19.42 (0.05) | 19.46 | 19.42 (0.005) | |||||||||||
| BP magnitude | 19.53 (0.05) | 19.40 | ||||||||||||
| RP magnitude | 19.57 (0.07) | 19.57 | ||||||||||||
| Pan g magnitude | 19.32 (0.008) | |||||||||||||
| Pan r magnitude | 19.54 (0.006) | |||||||||||||
| Pan i magnitude | 19.75 (0.01) | |||||||||||||
| Pan z magnitude | 19.94 (0.03) | |||||||||||||
| Pan y magnitude | 19.74 (0.3) | |||||||||||||
| E(B-V) | 0.042 | |||||||||||||
* Constant surface field
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