Gaia DR2 6912866381081015552
All names: WDJ210854.87-031202.98, Gaia EDR3 6912866381081015552, TIC 407937748, SDSS J210854.86-031204.6, Gaia DR2 6912866381081015552, J2108-0312, Gaia DR3 6912866381081015552, GALEX J210854.9-031202, 2MASS J21085487-0312032
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | 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 | 21 08 54.87 (0.08) | 21 08 54.87 | 21 08 54.87 | 21 08 54.87 (0.08) | 21 08 54.87 | ||||||||
| Declination | -03 12 05.72 (0.06) | -03 12 05.63 | -03 12 05.72 | -03 12 02.98 (0.06) | -03 12 05.63 | ||||||||
| Spectral type | DC | DC | DC | DC | DC | ||||||||
| Effective temperature | [K] | 5257.0 (52) | 4986.0 (20) | 5230.0 (50) | 5380.0 | 5083.0 | 5419.0 (37) | ||||||
| log(g) | [cgs] | 7.94 (0.04) | 7.77 (0.01) | 7.93 (0.04) | 8.03 | 7.83 | 8.04 (0.02) | ||||||
| Mass | [M☉] | 0.532 (0.02) | 0.438 (0.009) | 0.602 | 0.472 | 0.611 (0.01) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 3.8800 | 4.0140 | 3.9720 | |||||||||
| 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] | 28.53 (0.1) | 28.53 (0.1) | 28.55 (0.1) | 28.55 (0.1) | 28.53 | 28.53 (0.1) | 28.55 (0.1) | |||||
| Distance | [pc] | 35.05 (0.1) | 35.05 (0.1) | 35.03 (0.2) | 35.03 (0.2) | 35.05 | 35.05 (0.1) | 35.03 (0.2) | |||||
| Composition | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -5.381352869 (0.1) | -5.473129342 (0.2) | -5.381 (0.1) | -5.473129342 | ||||||||
| Proper motion (declination) | [mas/yr] | -170.8789533 (0.07) | -171.028507 (0.2) | -170.879 (0.07) | -171.028507 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.98 (0.07) | 15.98 (0.07) | |||||||||||
| H magnitude | 15.93 (0.2) | 15.93 (0.2) | |||||||||||
| K magnitude | 15.96 (0.3) | 15.96 (0.3) | |||||||||||
| u magnitude | 18.98 (0.02) | 18.97 (0.02) | 18.97 (0.02) | ||||||||||
| g magnitude | 17.79 (0.006) | 17.79 (0.006) | |||||||||||
| r magnitude | 17.25 (0.006) | 17.25 (0.006) | |||||||||||
| i magnitude | 17.02 (0.006) | 17.02 (0.006) | |||||||||||
| z magnitude | 16.91 (0.01) | 16.91 (0.01) | |||||||||||
| G magnitude | 17.26 (0.009) | 17.28 | 17.26 | 17.26 (0.003) | 17.28 | ||||||||
| BP magnitude | 17.67 (0.009) | 17.69 | 17.69 | ||||||||||
| RP magnitude | 16.71 (0.007) | 16.71 | 16.71 | ||||||||||
| Pan g magnitude | 17.73 (0.007) | 17.73 (0.005) | |||||||||||
| Pan r magnitude | 17.26 (0.005) | 17.26 (0.004) | |||||||||||
| Pan i magnitude | 17.06 (0.004) | 17.06 (0.003) | |||||||||||
| Pan z magnitude | 16.98 (0.005) | 16.98 (0.005) | |||||||||||
| Pan y magnitude | 16.97 (0.02) | 16.97 (0.02) | |||||||||||
| E(B-V) | 0.001 | ||||||||||||
* Constant surface field
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