SDSS J084802.49+082144.1
All names: SDSS J084802.50+082144.0, SDSS J084802.49+082144.1, GALEX J084802.5+082144, SDSS J084802.49+082144.0, Gaia DR2 597054467652894208, SDSS J084802.50+082144.1, Gaia DR3 597054467652894208, WD 0845+085, Gaia EDR3 597054467652894208
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 48 02.49 (0.2) | 08 48 02.50 | 08 48 02.49 (0.2) | 08 48 02.49 | 08 48 02.50 (0.1) | 08 48 02.50 | 08 48 02.16 | 08 48 02.50 | ||||||
| Declination | 08 21 44.05 (0.09) | 08 21 44.13 | 08 21 44.06 (0.1) | 08 21 44.05 | 08 21 44.13 (0.09) | 08 21 44.15 | 08 21 41.76 | 08 21 44.15 | ||||||
| Spectral type | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 16885.0 | 19720.0 (420) | 17140.0 (941) | 19377.0 (291) | 19482.0 (286) | ||||||||
| log(g) | [cgs] | 7.78 | 7.84 (0.07) | 7.82 (0.09) | 7.88 (0.05) | 7.91 (0.05) | ||||||||
| Mass | [M☉] | 0.502 | 0.54 (0.03) | 0.52 (0.06) | 0.577 (0.02) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.0894 | 0.0550 | |||||||||||
| 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] | 2.91 (0.2) | 2.82 (0.2) | 2.91 | 2.91 (0.2) | |||||||||
| Distance | [pc] | 343.91 (22) | 354.68 (29) | 343.91 | 343.91 (22) | |||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -10.19161659 (0.2) | -9.948867352 (0.4) | -10.192 (0.2) | -1.7 | |||||||||
| Proper motion (declination) | [mas/yr] | -4.492442499 (0.2) | -4.509501603 (0.3) | -4.492 (0.2) | -6.1 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 18.90 (0.1) | |||||||||||||
| H magnitude | 19.30 (0.2) | |||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.45 (0.01) | 18.45 (0.01) | 18.50 (0.02) | 18.49 | 18.49 (0.02) | |||||||||
| g magnitude | 18.34 (0.007) | 18.34 (0.007) | 18.38 (0.01) | 18.37 | 18.37 (0.01) | |||||||||
| r magnitude | 18.68 (0.009) | 18.68 (0.009) | 18.71 (0.01) | 18.70 | 18.71 (0.01) | |||||||||
| i magnitude | 18.97 (0.01) | 18.97 (0.01) | 19.01 (0.02) | 19.00 | 18.99 (0.02) | |||||||||
| z magnitude | 19.36 (0.05) | 19.36 (0.05) | 19.33 (0.05) | 19.32 | 19.31 (0.05) | |||||||||
| G magnitude | 18.52 (0.02) | 18.56 | 18.52 | 18.52 (0.003) | ||||||||||
| BP magnitude | 18.49 (0.02) | 18.48 | ||||||||||||
| RP magnitude | 18.72 (0.03) | 18.77 | ||||||||||||
| Pan g magnitude | 18.38 (0.004) | |||||||||||||
| Pan r magnitude | 18.70 (0.005) | |||||||||||||
| Pan i magnitude | 19.02 (0.01) | |||||||||||||
| Pan z magnitude | 19.24 (0.02) | |||||||||||||
| Pan y magnitude | 19.34 (0.05) | |||||||||||||
| E(B-V) | 0.025 | |||||||||||||
* Constant surface field
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