Gaia DR2 4337798810117194112
All names: SDSS J164830.50-091821.1, Gaia EDR3 4337798810117194112, Gaia DR3 4337798810117194112, Gaia DR2 4337798810117194112, WDJ164830.49-091820.66, WDJ164830.49-091820.67, J1648-0918, SDSS J164830.49-091821.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 48 30.52 (0.04) | 16 48 30.52 | 16 48 30.52 | 16 48 30.49 (0.04) | 16 48 30.52 | |||||||
| Declination | -09 18 21.87 (0.02) | -09 18 21.83 | -09 18 21.87 | -09 18 20.67 (0.02) | -09 18 21.83 | |||||||
| Spectral type | DB | DB | DB | DB | ||||||||
| Effective temperature | [K] | 13294.0 (154) | 13212.0 (162) | 11952.0 | 12880.0 | 13505.0 (154) | ||||||
| log(g) | [cgs] | 7.88 (0.01) | 7.86 (0.01) | 7.78 | 7.83 | 7.89 (0.01) | ||||||
| Mass | [M☉] | 0.518 (0.01) | 0.511 (0.01) | 0.485 | 0.491 | 0.526 (0.01) | ||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.2848 | 0.2468 | |||||||||
| log(H/He) | -5 | |||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(N/He) | ||||||||||||
| log(O/He) | ||||||||||||
| log(Na/He) | ||||||||||||
| log(Mg/He) | ||||||||||||
| log(Al/He) | ||||||||||||
| log(Si/He) | ||||||||||||
| log(P/He) | ||||||||||||
| log(S/He) | ||||||||||||
| log(Cl/He) | ||||||||||||
| log(Sc/He) | ||||||||||||
| log(Ti/He) | ||||||||||||
| log(V/He) | ||||||||||||
| log(Cr/He) | ||||||||||||
| log(Mn/He) | ||||||||||||
| log(Fe/He) | ||||||||||||
| log(Co/He) | ||||||||||||
| log(Ni/He) | ||||||||||||
| log(Cu/He) | ||||||||||||
| log(Zn/He) | ||||||||||||
| log(Ga/He) | ||||||||||||
| log(Ge/He) | ||||||||||||
| log(Sr/He) | ||||||||||||
| Parallax | [mas] | 10.25 (0.06) | 10.23 (0.06) | 10.25 | 10.25 (0.06) | 10.23 (0.06) | ||||||
| Distance | [pc] | 97.57 (0.5) | 97.76 (0.6) | 97.57 | 97.57 (0.5) | 97.76 (0.6) | ||||||
| Composition | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 29.71962848 (0.07) | 29.81511571 (0.1) | 29.72 (0.07) | 29.81511571 | |||||||
| Proper motion (declination) | [mas/yr] | -75.11546535 (0.04) | -75.20356631 (0.07) | -75.115 (0.04) | -75.20356631 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 16.16 (0.006) | 16.16 (0.006) | ||||||||||
| g magnitude | 16.18 (0.004) | 16.18 (0.004) | ||||||||||
| r magnitude | 16.45 (0.005) | 16.45 (0.005) | ||||||||||
| i magnitude | 16.66 (0.005) | 16.66 (0.005) | ||||||||||
| z magnitude | 16.90 (0.01) | 16.90 (0.01) | ||||||||||
| G magnitude | 16.32 (0.003) | 16.34 | 16.32 | 16.32 (0.003) | 16.34 | |||||||
| BP magnitude | 16.28 (0.003) | 16.24 | 16.24 | |||||||||
| RP magnitude | 16.36 (0.002) | 16.36 | 16.36 | |||||||||
| Pan g magnitude | 16.26 (0.009) | |||||||||||
| Pan r magnitude | 16.48 (0.003) | |||||||||||
| Pan i magnitude | 16.69 (0.002) | |||||||||||
| Pan z magnitude | 16.88 (0.003) | |||||||||||
| Pan y magnitude | 17.05 (0.006) | |||||||||||
| E(B-V) | 0.095 | |||||||||||
* Constant surface field
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