SDSS J075230.92+444750.1
All names: Gaia DR2 926374594063195904, Gaia DR3 926374594063195904, SDSS J075230.92+444750.1, SDSS J075230.82+444749.8, SDSS J075230.82+444749.88, GALEX J075230.9+444750, WDJ075230.93+444750.12, Gaia EDR3 926374594063195904, J0752+4447
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 52 30.76 (0.05) | 07 52 30.92 | 07 52 30.76 (0.07) | 07 52 30.76 | 07 52 30.93 (0.05) | 07 52 30.76 | |||||||||
| Declination | 44 47 49.81 (0.05) | 44 47 50.12 | 44 47 49.82 (0.06) | 44 47 49.81 | 44 47 50.12 (0.05) | 44 47 49.82 | |||||||||
| Spectral type | DQ | DC: | DC: | DC: | DC: | DZ | DQ | DC: | |||||||
| Effective temperature | [K] | 8990.0 (56) | 9297.0 (53) | 9936.0 | 9835.0 | 10375.0 (199) | 8445.0 (102) | ||||||||
| log(g) | [cgs] | 7.92 (0.01) | 8.02 (0.01) | 8.28 | 8.20 | 8.00 (0) | 7.86 (0.02) | ||||||||
| Mass | [M☉] | 0.534 (0.008) | 0.59 (0.01) | 0.773 | 0.707 | 0.497 (0.01) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.8100 | 0.9238 | 0.8803 | |||||||||||
| log(H/He) | -4.4 | ||||||||||||||
| log(C/He) | -4.68 | ||||||||||||||
| 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] | 14.13 (0.07) | 14.09 (0.1) | 14.09 (0.1) | 14.13 | 14.13 (0.07) | 14.09 (0.1) | ||||||||
| Distance | [pc] | 70.77 (0.3) | 70.97 (0.5) | 70.99 (0.5) | 70.77 | 70.77 (0.3) | 70.99 (0.5) | ||||||||
| Composition | He | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -113.5977432 (0.06) | -113.7306847 (0.1) | -113.598 (0.07) | -113.7306847 | ||||||||||
| Proper motion (declination) | [mas/yr] | -19.38738722 (0.05) | -19.4899656 (0.1) | -19.387 (0.05) | -19.4899656 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.81 (0.02) | ||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 17.05 (0.008) | 17.07 (0.007) | 17.06 (0.01) | 17.05 (0.008) | 17.05 (0.008) | ||||||||||
| g magnitude | 16.87 (0.004) | 16.89 (0.02) | 16.87 (0.004) | 16.87 (0.004) | |||||||||||
| r magnitude | 16.94 (0.005) | 16.96 (0.02) | 16.95 (0.005) | 16.95 (0.005) | |||||||||||
| i magnitude | 17.07 (0.006) | 17.07 (0.02) | 17.07 (0.006) | 17.07 (0.006) | |||||||||||
| z magnitude | 17.22 (0.01) | 17.23 (0.02) | 17.22 (0.01) | 17.22 (0.01) | |||||||||||
| G magnitude | 16.86 (0.006) | 16.89 | 16.86 | 16.86 (0.003) | 16.89 | ||||||||||
| BP magnitude | 16.92 (0.006) | 16.89 | 16.89 | ||||||||||||
| RP magnitude | 16.75 (0.005) | 16.74 | 16.74 | ||||||||||||
| Pan g magnitude | 16.88 (0.005) | 16.88 (0.004) | |||||||||||||
| Pan r magnitude | 16.94 (0.004) | 16.94 (0.004) | |||||||||||||
| Pan i magnitude | 17.10 (0.003) | 17.10 (0.004) | |||||||||||||
| Pan z magnitude | 17.24 (0.006) | 17.24 (0.005) | |||||||||||||
| Pan y magnitude | 17.36 (0.01) | 17.36 (0.01) | |||||||||||||
| E(B-V) | 0.002 | ||||||||||||||
* Constant surface field
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