Gaia DR2 19399306419780224
All names: WDJ023543.03+072955.27, Gaia DR2 19399306419780224, USNO-B1.0 0974-00031992, J0235+0729, LP 530-29, NLTT 8430, LSPM J0235+0729, SDSS J023542.99+072953.2, Gaia DR3 19399306419780224, Gaia EDR3 19399306419780224, SDSS J023543.00+072953.3, GALEX J023542.9+072953
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 35 42.97 (0.2) | 02 35 42.97 | 02 35 42.97 | 02 35 43.03 (0.2) | 02 35 42.97 | ||||||||
| Declination | 07 29 51.88 (0.2) | 07 29 51.98 | 07 29 51.88 | 07 29 55.27 (0.2) | 07 29 51.98 | ||||||||
| Spectral type | DQ | DQ | DQ | DQ | DQ | ||||||||
| Effective temperature | [K] | 6163.0 (18) | 6373.0 (18) | 6330.0 (19) | 5727.0 | 5488.0 | 6591.0 (78) | ||||||
| log(g) | [cgs] | 8.17 (0.02) | 8.27 (0.02) | 8.25 (0.03) | 8.08 | 7.92 | 8.29 (0.03) | ||||||
| Mass | [M☉] | 0.679 (0.02) | 0.747 (0.02) | 0.733 (0.02) | 0.633 | 0.523 | 0.761 (0.03) | ||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 3.6800 | 3.1400 | 3.3000 | |||||||||
| log(H/He) | |||||||||||||
| log(C/He) | -5.63 | -5.34 | -5.43 | ||||||||||
| 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] | 12.23 (0.2) | 12.50 (0.3) | 12.50 (0.3) | 12.23 | 12.23 (0.2) | 12.50 (0.3) | ||||||
| Distance | [pc] | 81.79 (2) | 80.00 (2) | 79.97 (2) | 81.79 | 81.79 (2) | 79.97 (2) | ||||||
| Composition | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -52.39278139 (0.3) | -52.23264162 (0.5) | -52.393 (0.3) | -52.23264162 | ||||||||
| Proper motion (declination) | [mas/yr] | -212.2944693 (0.2) | -212.1081973 (0.5) | -212.294 (0.2) | -212.1081973 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 19.00 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 18.80 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 18.16 (0.05) | ||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.45 (0.03) | 19.41 (0.03) | 19.41 (0.03) | ||||||||||
| g magnitude | 19.25 (0.01) | 19.25 (0.01) | |||||||||||
| r magnitude | 18.73 (0.009) | 18.73 (0.009) | |||||||||||
| i magnitude | 18.57 (0.01) | 18.57 (0.01) | |||||||||||
| z magnitude | 18.61 (0.03) | 18.61 (0.03) | |||||||||||
| G magnitude | 18.78 (0.03) | 18.82 | 18.78 | 18.78 (0.004) | 18.82 | ||||||||
| BP magnitude | 19.07 (0.03) | 19.07 | 19.07 | ||||||||||
| RP magnitude | 18.27 (0.04) | 18.31 | 18.31 | ||||||||||
| Pan g magnitude | 19.27 (0.009) | 19.27 (0.008) | |||||||||||
| Pan r magnitude | 18.73 (0.005) | 18.73 (0.006) | |||||||||||
| Pan i magnitude | 18.59 (0.007) | 18.59 (0.007) | |||||||||||
| Pan z magnitude | 18.67 (0.01) | 18.67 (0.01) | |||||||||||
| Pan y magnitude | 18.74 (0.02) | 18.74 (0.02) | |||||||||||
| E(B-V) | 0.005 | ||||||||||||
* Constant surface field
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