Gaia DR2 6248279939316190464
All names: WDJ155451.57-184454.76, SDSS J155451.57-184454.5, Gaia EDR3 6248279939316190464, WDJ155451.57-184454.75, SDSS J155451.56-184454.5, Gaia DR2 6248279939316190464, Gaia DR3 6248279939316190464
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 54 51.56 (0.2) | 15 54 51.56 | 15 54 51.56 | 15 54 51.57 (0.2) | 15 54 51.56 | ||||||
| Declination | -18 44 54.36 (0.1) | -18 44 54.37 | -18 44 54.36 | -18 44 54.76 (0.1) | -18 44 54.37 | ||||||
| Spectral type | DC | DC | DC | ||||||||
| Effective temperature | [K] | 6765.0 (54) | 7278.0 | 7019.0 | 7347.0 (192) | ||||||
| log(g) | [cgs] | 7.75 (0.03) | 8.03 | 7.92 | 7.99 (0.05) | ||||||
| Mass | [M☉] | 0.437 (0.02) | 0.609 | 0.527 | 0.568 (0.04) | ||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 1.4280 | 1.3880 | ||||||||
| log(H/He) | -3.4 | ||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 10.48 (0.2) | 10.49 (0.2) | 10.48 | 10.48 (0.2) | 10.49 (0.2) | |||||
| Distance | [pc] | 95.46 (2) | 95.34 (2) | 95.46 | 95.46 (2) | 95.34 (2) | |||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -8.877298006 (0.2) | -8.843903094 (0.4) | -8.877 (0.2) | -8.843903094 | ||||||
| Proper motion (declination) | [mas/yr] | 24.86162218 (0.2) | 24.76837556 (0.3) | 24.862 (0.2) | 24.76837556 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 24.63 (2) | 24.63 (2) | |||||||||
| g magnitude | 25.11 (1) | 25.11 (1) | |||||||||
| r magnitude | 18.59 (0.01) | 18.59 (0.01) | |||||||||
| i magnitude | 24.36 (1) | 24.36 (1) | |||||||||
| z magnitude | 22.83 (1) | 22.83 (1) | |||||||||
| G magnitude | 18.23 (0.03) | 18.25 | 18.23 | 18.23 (0.003) | 18.25 | ||||||
| BP magnitude | 18.32 (0.03) | 18.31 | 18.31 | ||||||||
| RP magnitude | 17.95 (0.02) | 17.90 | 17.90 | ||||||||
| Pan g magnitude | 18.38 (0.007) | ||||||||||
| Pan r magnitude | 18.23 (0.007) | ||||||||||
| Pan i magnitude | 18.30 (0.007) | ||||||||||
| Pan z magnitude | 18.31 (0.01) | ||||||||||
| Pan y magnitude | 18.30 (0.01) | ||||||||||
| E(B-V) | 0.053 | ||||||||||
* Constant surface field
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