SDSS J121850.50+542043.5
All names: Gaia EDR3 1572659346956219520, Gaia DR3 1572659346956219520, SDSS J121850.51+542043.6, SDSS J121850.50+542043.8, SDSS J121850.50+542043.5, WD 1216+546, GALEX J121850.5+542042, Gaia DR2 1572659346956219520
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 18 50.49 (0.3) | 12 18 50.51 | 12 18 50.49 (0.4) | 12 18 50.50 (0.3) | 12 18 50.51 | 12 18 50.57 | 12 18 50.51 | ||||||
| Declination | 54 20 43.23 (0.3) | 54 20 43.54 | 54 20 43.24 (0.4) | 54 20 43.56 (0.3) | 54 20 43.56 | 54 20 39.12 | 54 20 43.58 | ||||||
| Spectral type | DC: | DC: | DC+M | DC: | DC: | DCM: | DC | ||||||
| Effective temperature | [K] | 7827.0 | 7614.0 | 10120.0 (57) | 10120.0 (57) | ||||||||
| log(g) | [cgs] | 8.46 | 8.40 | 8.10 (0.6) | 9.00 (0.8) | ||||||||
| Mass | [M☉] | 0.891 | 0.834 | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 2.7850 | 2.7240 | ||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 4.70 (0.4) | 5.00 (0.6) | 4.70 (0.4) | |||||||||
| Distance | [pc] | 212.98 (19) | 200.19 (24) | 212.98 (19) | |||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.378507537 (0.4) | -7.080002989 (0.7) | -7.379 (0.4) | -1.7 | ||||||||
| Proper motion (declination) | [mas/yr] | -20.38727854 (0.4) | -20.87564656 (0.8) | -20.387 (0.4) | -34.1 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 20.73 (0.08) | 20.73 (0.08) | 20.65 (0.08) | 20.65 | 20.67 (0.08) | ||||||||
| g magnitude | 20.34 (0.02) | 20.34 (0.02) | 20.35 (0.03) | 20.35 | 20.37 (0.03) | ||||||||
| r magnitude | 20.29 (0.03) | 20.29 (0.03) | 20.33 (0.03) | 20.33 | 20.33 (0.03) | ||||||||
| i magnitude | 20.32 (0.04) | 20.32 (0.04) | 20.34 (0.04) | 20.34 | 20.34 (0.04) | ||||||||
| z magnitude | 20.17 (0.1) | 20.18 (0.1) | 20.19 (0.1) | 20.19 | 20.20 (0.1) | ||||||||
| G magnitude | 20.25 (0.06) | 20.30 | 20.25 (0.005) | ||||||||||
| BP magnitude | 20.44 (0.06) | 20.35 | |||||||||||
| RP magnitude | 19.90 (0.09) | 20.04 | |||||||||||
| Pan g magnitude | 20.37 (0.02) | ||||||||||||
| Pan r magnitude | 20.27 (0.02) | ||||||||||||
| Pan i magnitude | 20.31 (0.01) | ||||||||||||
| Pan z magnitude | 20.42 (0.04) | ||||||||||||
| Pan y magnitude | 19.80 (0.2) | ||||||||||||
| E(B-V) | 0.016 | ||||||||||||
* Constant surface field
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