SDSS J083735.20+315438.1
All names: Gaia DR2 709769115467848448, WDJ083735.20+315438.12, SDSS J083735.20+315438.2, J0837+3154, Gaia EDR3 709769115467848448, Gaia DR3 709769115467848448, GALEX J083735.2+315441, SDSS J083735.19+315438.1, SDSS J083735.20+315438.1, SDSS J083735.20+315438.15
| 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 | 08 37 35.20 (0.2) | 08 37 35.20 | 08 37 35.20 (0.3) | 08 37 35.20 | 08 37 35.20 (0.2) | 08 37 35.20 | |||||||||
| Declination | 31 54 38.27 (0.1) | 31 54 38.15 | 31 54 38.27 (0.2) | 31 54 38.27 | 31 54 38.12 (0.1) | 31 54 38.27 | |||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | DC | |||||||
| Effective temperature | [K] | 6201.0 (53) | 6260.0 (52) | 6667.0 | 6437.0 | 8233.0 (1000) | 6122.0 (168) | ||||||||
| log(g) | [cgs] | 8.01 (0.03) | 8.05 (0.04) | 8.28 | 8.17 | 6.50 (0.5) | 8.07 (0.04) | ||||||||
| Mass | [M☉] | 0.579 (0.02) | 0.604 (0.03) | 0.765 | 0.678 | 0.616 (0.04) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 2.3600 | 3.0870 | 2.8750 | |||||||||||
| log(H/He) | -3.0 | -3.2 | |||||||||||||
| 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] | 11.01 (0.2) | 11.14 (0.3) | 11.14 (0.3) | 11.01 | 11.01 (0.2) | 11.14 (0.3) | ||||||||
| Distance | [pc] | 90.85 (2) | 89.77 (3) | 89.76 (3) | 90.85 | 90.85 (2) | 89.76 (3) | ||||||||
| Composition | He | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -0.862005787 (0.2) | -0.799921535 (0.5) | -0.862 (0.2) | -0.799921534 | ||||||||||
| Proper motion (declination) | [mas/yr] | 9.905728772 (0.2) | 9.83811228 (0.4) | 9.906 (0.2) | 9.83811228 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 18.18 (0.05) | ||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 19.67 (0.03) | 19.65 (0.03) | 19.67 (0.03) | 19.67 (0.03) | 19.67 (0.03) | ||||||||||
| g magnitude | 19.01 (0.009) | 19.01 (0.01) | 19.01 (0.009) | 19.01 (0.009) | |||||||||||
| r magnitude | 18.76 (0.01) | 18.76 (0.01) | 18.76 (0.01) | 18.76 (0.01) | |||||||||||
| i magnitude | 18.71 (0.01) | 18.71 (0.01) | 18.71 (0.01) | 18.71 (0.01) | |||||||||||
| z magnitude | 18.82 (0.05) | 18.82 (0.05) | 18.82 (0.05) | 18.82 (0.05) | |||||||||||
| G magnitude | 18.77 (0.02) | 18.80 | 18.77 | 18.77 (0.003) | 18.80 | ||||||||||
| BP magnitude | 18.97 (0.02) | 18.89 | 18.89 | ||||||||||||
| RP magnitude | 18.41 (0.02) | 18.43 | 18.43 | ||||||||||||
| Pan g magnitude | 19.01 (0.007) | 19.01 (0.007) | |||||||||||||
| Pan r magnitude | 18.77 (0.005) | 18.77 (0.005) | |||||||||||||
| Pan i magnitude | 18.73 (0.009) | 18.73 (0.01) | |||||||||||||
| Pan z magnitude | 18.75 (0.01) | 18.75 (0.009) | |||||||||||||
| Pan y magnitude | 18.80 (0.04) | 18.80 (0.03) | |||||||||||||
| E(B-V) | 0.003 | ||||||||||||||
* Constant surface field
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