WD 0939+559
All names: Gaia DR2 1022068969383015424, SDSS J094241.64+554342.9, SDSS J094241.64+554342.8, Gaia DR3 1022068969383015424, Gaia EDR3 1022068969383015424, WIRED J094241.64+554342.9, GALEX J094241.6+554342, SDSS J094241.65+554342.9, WD 0939+559
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | 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 | 09 42 41.72 (0.4) | 09 42 41.65 | 09 42 41.72 (0.6) | 09 42 41.64 (0.4) | 09 42 41.65 | 09 42 40.87 | 09 42 41.64 | 09 42 41.64 | |||||
| Declination | 55 43 42.68 (0.4) | 55 43 42.90 | 55 43 42.68 (0.6) | 55 43 42.85 (0.4) | 55 43 42.91 | 55 43 35.04 | 55 43 42.91 | 55 43 42.92 | |||||
| Spectral type | DA | DA | DA | DA5.5 | DA | DA | |||||||
| Effective temperature | [K] | 9750.0 | 9165.0 (188) | 8946.0 (191) | 9170.0 (192) | ||||||||
| log(g) | [cgs] | 7.91 | 7.58 (0.3) | 7.60 (0.4) | 7.66 (0.3) | ||||||||
| Mass | [M☉] | 0.548 | 0.425 (0.1) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.5748 | |||||||||||
| 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] | 3.15 (0.5) | 2.26 (0.8) | 3.15 (0.5) | |||||||||
| Distance | [pc] | 317.54 (54) | 441.52 (165) | 317.54 (54) | |||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 39.86750107 (0.6) | 39.53562745 (2) | 39.868 (0.6) | 45.4 | 43.0 | |||||||
| Proper motion (declination) | [mas/yr] | -10.89651806 (0.5) | -12.07149865 (1) | -10.897 (0.5) | -13.6 | -13.0 | |||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 20.94 (0.07) | 20.93 (0.07) | 20.89 (0.07) | 20.87 | 20.91 (0.07) | 20.87 (0.07) | |||||||
| g magnitude | 20.43 (0.02) | 20.43 (0.02) | 20.44 (0.03) | 20.45 | 20.45 (0.03) | 20.45 (0.07) | |||||||
| r magnitude | 20.43 (0.03) | 20.45 (0.03) | 20.44 (0.03) | 20.44 | 20.45 (0.03) | 20.44 (0.03) | |||||||
| i magnitude | 20.55 (0.04) | 20.55 (0.04) | 20.57 (0.04) | 20.55 | 20.59 (0.04) | 20.55 (0.04) | |||||||
| z magnitude | 20.77 (0.2) | 20.73 (0.2) | 20.70 (0.2) | 20.68 | 20.72 (0.2) | 20.68 (0.2) | |||||||
| G magnitude | 20.43 (0.07) | 20.49 | 20.43 (0.006) | ||||||||||
| BP magnitude | 20.52 (0.07) | 20.59 | |||||||||||
| RP magnitude | 20.22 (0.1) | 20.16 | |||||||||||
| Pan g magnitude | 20.41 (0.03) | ||||||||||||
| Pan r magnitude | 20.47 (0.02) | ||||||||||||
| Pan i magnitude | 20.53 (0.02) | ||||||||||||
| Pan z magnitude | 20.62 (0.05) | ||||||||||||
| Pan y magnitude | |||||||||||||
| E(B-V) | 0.020 | ||||||||||||
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Normalize by mean flux
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
