Gaia DR2 4228576550540445184
All names: WDJ205238.09+013325.59, SDSS J205237.90+013325.0, NLTT 50054, J2052+0133, USNO-B1.0 0915-00530740, SDSS J205237.91+013325.0, Gaia EDR3 4228576550540445184, Gaia DR3 4228576550540445184, SDSS J205237.99+013325.2, LSPM J2052+0133, Gaia DR2 4228576550540445184, LP 636-17
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 52 37.76 (0.09) | 20 52 37.77 | 20 52 37.76 | 20 52 38.09 (0.09) | 20 52 37.77 | |||||||
| Declination | 01 33 24.52 (0.05) | 01 33 24.56 | 01 33 24.52 | 01 33 25.59 (0.05) | 01 33 24.56 | |||||||
| Spectral type | DC | DC | D | DC | ||||||||
| Effective temperature | [K] | 5499.0 (22) | 5722.0 | 5461.0 | 5507.0 (1355) | |||||||
| log(g) | [cgs] | 7.92 (0.01) | 8.07 | 7.91 | 8.20 (0.1) | |||||||
| Mass | [M☉] | 0.526 (0.01) | 0.632 | 0.514 | 0.695 (0.1) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 3.4500 | 3.1330 | 3.2820 | ||||||||
| log(H/He) | ||||||||||||
| 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] | 20.77 (0.1) | 20.75 (0.1) | 20.75 (0.1) | 20.77 | 20.77 (0.1) | 20.75 (0.1) | |||||
| Distance | [pc] | 48.15 (0.3) | 48.19 (0.3) | 48.20 (0.3) | 48.15 | 48.15 (0.3) | 48.20 (0.3) | |||||
| Composition | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -308.3200764 (0.1) | -308.1277733 (0.2) | -308.32 (0.1) | -308.1277733 | |||||||
| Proper motion (declination) | [mas/yr] | -66.57790522 (0.09) | -66.66801514 (0.2) | -66.578 (0.09) | -66.66801514 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 18.50 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | 17.50 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.10 (0.02) | 19.08 (0.03) | 19.08 (0.03) | |||||||||
| g magnitude | 18.18 (0.006) | 18.18 (0.006) | ||||||||||
| r magnitude | 17.68 (0.006) | 17.68 (0.006) | ||||||||||
| i magnitude | 17.50 (0.007) | 17.50 (0.007) | ||||||||||
| z magnitude | 17.48 (0.01) | 17.48 (0.01) | ||||||||||
| G magnitude | 17.77 (0.009) | 17.78 | 17.77 | 17.77 (0.003) | 17.78 | |||||||
| BP magnitude | 18.09 (0.009) | 18.09 | 18.09 | |||||||||
| RP magnitude | 17.23 (0.01) | 17.23 | 17.23 | |||||||||
| Pan g magnitude | 18.14 (0.004) | 18.14 (0.003) | ||||||||||
| Pan r magnitude | 17.71 (0.005) | 17.71 (0.004) | ||||||||||
| Pan i magnitude | 17.54 (0.006) | 17.54 (0.006) | ||||||||||
| Pan z magnitude | 17.53 (0.007) | 17.53 (0.006) | ||||||||||
| Pan y magnitude | 17.59 (0.01) | 17.59 (0.01) | ||||||||||
| E(B-V) | 0.001 | |||||||||||
* Constant surface field
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