WD 1254+650
All names: WD 1254+650, SDSS J125640.39+644707.9, Gaia EDR3 1677242801342291456, Gaia DR3 1677242801342291456, SDSS J125640.38+644707.9, Gaia DR2 1677242797051883904, SDSS J125640.38+644708.0, SDSS J125640.39+644708.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | 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 | 12 56 40.39 (0.3) | 12 56 40.40 | 12 56 40.39 (0.5) | 12 56 40.39 | 12 56 40.40 (0.3) | 12 56 40.38 | 12 56 39.43 | 12 56 40.39 | 12 56 40.39 | |||||
| Declination | 64 47 07.78 (0.3) | 64 47 07.92 | 64 47 07.79 (0.4) | 64 47 08.02 | 64 47 08.03 (0.3) | 64 47 08.00 | 64 47 05.64 | 64 47 08.04 | 64 47 08.05 | |||||
| Spectral type | DA+M: | DA+M: | DA+M | DA | DA2.7 | DA+M | DA | |||||||
| Effective temperature | [K] | 16171.0 | 18974.0 (1196) | 18701.0 (555) | 18997.0 (559) | 18792.0 (554) | ||||||||
| log(g) | [cgs] | 7.74 | 8.35 (0.2) | 8.01 (0.1) | 8.05 (0.1) | 8.06 (0.1) | ||||||||
| Mass | [M☉] | 0.478 | 0.84 (0.2) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.0984 | ||||||||||||
| 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] | 1.25 (0.3) | 1.60 (0.5) | 1.25 (0.3) | ||||||||||
| Distance | [pc] | 797.34 (207) | 624.36 (176) | 441.00 (142) | 797.32 (207) | |||||||||
| Composition | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -2.912196716 (0.4) | -2.575485194 (1) | -2.912 (0.4) | -1.7 | -4.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -15.31693986 (0.3) | -15.46217056 (0.7) | -15.317 (0.3) | -16.3 | -16.0 | ||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | WDMS | WDMS | ||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 19.71 (0.03) | 19.72 | 19.71 (0.03) | 19.72 (0.04) | 19.71 | 19.72 (0.04) | 19.71 (0.03) | |||||||
| g magnitude | 19.59 (0.01) | 19.59 | 19.59 (0.01) | 19.59 (0.04) | 19.59 | 19.59 (0.04) | 19.59 (0.04) | |||||||
| r magnitude | 19.91 (0.02) | 19.93 | 19.91 (0.02) | 19.93 (0.02) | 19.93 | 19.94 (0.02) | 19.93 (0.02) | |||||||
| i magnitude | 20.20 (0.03) | 20.19 | 20.20 (0.03) | 20.19 (0.04) | 20.19 | 20.19 (0.04) | 20.19 (0.04) | |||||||
| z magnitude | 20.32 (0.1) | 20.09 | 20.32 (0.1) | 20.09 (0.1) | 20.09 | 20.10 (0.1) | 20.09 (0.1) | |||||||
| G magnitude | 19.78 (0.04) | 19.82 | 19.78 (0.005) | |||||||||||
| BP magnitude | 19.76 (0.04) | 19.67 | ||||||||||||
| RP magnitude | 19.78 (0.09) | 19.93 | ||||||||||||
| Pan g magnitude | 19.61 (0.01) | |||||||||||||
| Pan r magnitude | 19.97 (0.01) | |||||||||||||
| Pan i magnitude | 20.25 (0.02) | |||||||||||||
| Pan z magnitude | 20.37 (0.04) | |||||||||||||
| Pan y magnitude | 20.18 (0.2) | |||||||||||||
| E(B-V) | 0.017 | |||||||||||||
* Constant surface field
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