WD 0940+556
All names: SDSS J094422.33+552756.2, Gaia EDR3 1021859649856872064, WD 0940+556, Gaia DR3 1021859649856872064, GALEX J094422.3+552756, WIRED J094422.33+552756.2, USNO-A2.0 1425-07381436, SDSS J094422.34+552756.2, Gaia DR2 1021859649856872064, SDSS J094422.34+552756.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | 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 44 22.36 (0.2) | 09 44 22.35 | 09 44 22.36 (0.2) | 09 44 22.36 | 09 44 22.35 (0.2) | 09 44 22.34 | 09 44 21.74 | 09 44 22.34 | 09 44 22.34 | |||||
| Declination | 55 27 55.34 (0.2) | 55 27 56.19 | 55 27 55.37 (0.3) | 55 27 55.34 | 55 27 56.21 (0.2) | 55 27 56.24 | 55 27 54.72 | 55 27 56.24 | 55 27 56.23 | |||||
| Spectral type | DA | DA | DA | DA | DA4.1 | DA | DA | |||||||
| Effective temperature | [K] | 10498.0 | 10487.0 (474) | 12192.0 (324) | 12197.0 (313) | 12153.0 (311) | ||||||||
| log(g) | [cgs] | 7.80 | 7.68 (0.1) | 7.83 (0.1) | 7.81 (0.1) | 7.93 (0.1) | ||||||||
| Mass | [M☉] | 0.491 | 0.433 (0.09) | 0.511 (0.07) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.4164 | ||||||||||||
| 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] | 2.80 (0.3) | 3.00 (0.4) | 2.80 | 2.80 (0.3) | |||||||||
| Distance | [pc] | 357.01 (32) | 332.94 (43) | 357.01 | 357.02 (32) | |||||||||
| Composition | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 6.293843913 (0.2) | 6.90412145 (0.5) | 6.294 (0.2) | 10.5 | 9.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -54.44178323 (0.2) | -54.88969974 (0.5) | -54.442 (0.2) | -58.9 | -56.0 | ||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 18.70 (0.3) | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 19.10 (0.3) | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 19.83 (0.04) | 19.83 (0.04) | 19.68 (0.04) | 19.68 | 19.70 (0.04) | 19.68 (0.04) | ||||||||
| g magnitude | 19.23 (0.01) | 19.23 (0.01) | 19.28 (0.02) | 19.31 | 19.28 (0.02) | 19.31 (0.02) | ||||||||
| r magnitude | 19.48 (0.02) | 19.48 (0.02) | 19.47 (0.03) | 19.48 | 19.47 (0.03) | 19.48 (0.03) | ||||||||
| i magnitude | 19.61 (0.03) | 19.61 (0.03) | 19.59 (0.03) | 19.59 | 19.60 (0.03) | 19.59 (0.03) | ||||||||
| z magnitude | 19.64 (0.08) | 19.64 (0.08) | 19.79 (0.1) | 19.79 | 19.81 (0.1) | 19.79 (0.1) | ||||||||
| G magnitude | 19.38 (0.04) | 19.41 | 19.38 | 19.38 (0.004) | ||||||||||
| BP magnitude | 19.40 (0.04) | 19.36 | ||||||||||||
| RP magnitude | 19.30 (0.04) | 19.24 | ||||||||||||
| Pan g magnitude | 19.31 (0.01) | |||||||||||||
| Pan r magnitude | 19.43 (0.01) | |||||||||||||
| Pan i magnitude | 19.62 (0.01) | |||||||||||||
| Pan z magnitude | 19.82 (0.04) | |||||||||||||
| Pan y magnitude | 19.69 (0.09) | |||||||||||||
| E(B-V) | 0.022 | |||||||||||||
* Constant surface field
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