SDSS J144754.40+420004.9
All names: SDSS J144754.40+420004.9, WD 1446+422, Gaia EDR3 1489770777406565760, GALEX J144754.4+420004, Gaia DR2 1489770777406565760, WIRED J144754.40+420004.9, Gaia DR3 1489770777406565760
| 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 | 14 47 54.40 (0.07) | 14 47 54.40 | 14 47 54.40 (0.1) | 14 47 54.40 | 14 47 54.40 (0.07) | 14 47 54.40 | 14 47 54.58 | 14 47 54.40 | ||||||
| Declination | 42 00 04.33 (0.08) | 42 00 04.93 | 42 00 04.36 (0.1) | 42 00 04.33 | 42 00 05.06 (0.08) | 42 00 04.94 | 42 00 02.52 | 42 00 04.94 | ||||||
| Spectral type | DA | DA | DA | DA | DA: | DA: | DA | DA | ||||||
| Effective temperature | [K] | 8271.0 | 8680.0 (50) | 8744.0 (177) | 8745.0 (36) | 8566.0 (42) | ||||||||
| log(g) | [cgs] | 7.63 | 7.99 (0.08) | 7.79 (0.04) | 8.07 (0.06) | 7.85 (0.08) | ||||||||
| Mass | [M☉] | 0.404 | 0.59 (0.04) | 0.479 (0.03) | 0.519 (0.04) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.6449 | 0.8710 | |||||||||||
| 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] | 6.83 (0.1) | 6.77 (0.1) | 6.83 | 6.83 (0.1) | |||||||||
| Distance | [pc] | 146.44 (2) | 147.73 (3) | 146.44 | 146.44 (2) | |||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.283786727 (0.09) | -6.27702551 (0.2) | -6.284 (0.09) | -1.8 | |||||||||
| Proper motion (declination) | [mas/yr] | -45.27484986 (0.1) | -45.3329362 (0.2) | -45.275 (0.1) | -44.9 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.73 (0.02) | 18.73 (0.02) | 18.74 (0.02) | 18.74 | 18.73 (0.02) | |||||||||
| g magnitude | 18.26 (0.007) | 18.26 (0.007) | 18.28 (0.02) | 18.28 | 18.28 (0.02) | |||||||||
| r magnitude | 18.25 (0.008) | 18.25 (0.008) | 18.25 (0.02) | 18.25 | 18.25 (0.02) | |||||||||
| i magnitude | 18.28 (0.01) | 18.28 (0.01) | 18.29 (0.01) | 18.29 | 18.29 (0.01) | |||||||||
| z magnitude | 18.43 (0.02) | 18.43 (0.02) | 18.45 (0.03) | 18.45 | 18.43 (0.03) | |||||||||
| G magnitude | 18.18 (0.02) | 18.21 | 18.18 | 18.18 (0.003) | ||||||||||
| BP magnitude | 18.26 (0.02) | 18.28 | ||||||||||||
| RP magnitude | 17.95 (0.02) | 17.97 | ||||||||||||
| Pan g magnitude | 18.26 (0.007) | |||||||||||||
| Pan r magnitude | 18.24 (0.01) | |||||||||||||
| Pan i magnitude | 18.29 (0.005) | |||||||||||||
| Pan z magnitude | 18.40 (0.01) | |||||||||||||
| Pan y magnitude | 18.42 (0.03) | |||||||||||||
| E(B-V) | 0.017 | |||||||||||||
* Constant surface field
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