Gaia DR2 6875432476922523520
All names: J2031-1450, Gaia DR2 6875432476922523520, Gaia EDR3 6875432476922523520, 2MASS J20310053-1450415, TIC 429184846, SDSS J203100.57-145041.4, Gaia DR3 6875432476922523520, WDJ203100.56-145041.38, WDJ20310.56-145041.37
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Tremblay et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 31 00.60 (0.1) | 20 31 00.60 | 20 31 00.60 | 20 31 00.56 (0.1) | 20 31 00.60 | |||||||||
| Declination | -14 50 41.42 (0.1) | -14 50 41.42 | -14 50 41.42 | -14 50 41.38 (0.1) | -14 50 41.42 | |||||||||
| Spectral type | DC | DC | DC | DC | DA: | DC | ||||||||
| Effective temperature | [K] | 4551.0 (22) | 4700.0 (152) | 4549.0 (21) | 4460.0 (90) | 4548.0 | 4246.0 | 4629.0 (64) | ||||||
| log(g) | [cgs] | 8.07 (0.01) | 8.20 (0.1) | 8.06 (0.01) | 8.03 (0.08) | 8.06 | 7.83 | 8.15 (0.03) | ||||||
| Mass | [M☉] | 0.624 (0.01) | 0.707 (0.07) | 0.617 (0.01) | 0.617 | 0.467 | 0.672 (0.03) | |||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 8.6500 | 7.9870 | 5.8860 | ||||||||||
| log(H/He) | ||||||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | ||||||||||||||
| log(Ca/H) | ||||||||||||||
| log(C/H) | ||||||||||||||
| log(N/H) | ||||||||||||||
| log(O/H) | ||||||||||||||
| log(Na/H) | ||||||||||||||
| log(Mg/H) | ||||||||||||||
| log(Al/H) | ||||||||||||||
| log(Si/H) | ||||||||||||||
| log(P/H) | ||||||||||||||
| log(S/H) | ||||||||||||||
| log(Sc/H) | ||||||||||||||
| log(Ti/H) | ||||||||||||||
| log(Cr/H) | ||||||||||||||
| log(Mn/H) | ||||||||||||||
| log(Fe/H) | ||||||||||||||
| log(Ni/H) | ||||||||||||||
| Parallax | [mas] | 26.42 (0.2) | 26.42 (0.2) | 26.25 (0.2) | 26.25 (0.2) | 26.42 | 26.42 (0.2) | 26.25 (0.2) | ||||||
| Distance | [pc] | 37.85 (0.2) | 37.85 (0.2) | 38.10 (0.3) | 38.10 (0.3) | 37.85 | 37.85 (0.2) | 38.10 (0.3) | ||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 40.00516413 (0.2) | 40.032477 (0.4) | 40.005 (0.2) | 40.032477 | |||||||||
| Proper motion (declination) | [mas/yr] | -3.007456076 (0.1) | -2.774162085 (0.3) | -3.007 (0.1) | -2.774162085 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.50 (0.1) | 16.50 (0.1) | ||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 21.17 (0.1) | 21.17 (0.1) | 21.17 (0.1) | |||||||||||
| g magnitude | 19.13 (0.01) | 19.13 (0.01) | ||||||||||||
| r magnitude | 18.21 (0.008) | 18.21 (0.008) | ||||||||||||
| i magnitude | 17.87 (0.008) | 17.87 (0.008) | ||||||||||||
| z magnitude | 17.70 (0.02) | 17.70 (0.02) | ||||||||||||
| G magnitude | 18.34 (0.04) | 18.35 | 18.34 | 18.34 (0.003) | 18.35 | |||||||||
| BP magnitude | 18.85 (0.04) | 18.88 | 18.88 | |||||||||||
| RP magnitude | 17.64 (0.02) | 17.60 | 17.60 | |||||||||||
| Pan g magnitude | 19.05 (0.008) | 19.05 (0.009) | ||||||||||||
| Pan r magnitude | 18.26 (0.006) | 18.26 (0.006) | ||||||||||||
| Pan i magnitude | 17.93 (0.002) | 17.93 (0.002) | ||||||||||||
| Pan z magnitude | 17.80 (0.005) | 17.80 (0.004) | ||||||||||||
| Pan y magnitude | 17.76 (0.009) | 17.76 (0.009) | ||||||||||||
| E(B-V) | 0.001 | |||||||||||||
* Constant surface field
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