Gaia DR2 1974579637737581568
All names: J2146+4626, SDSS J214608.54+462629.6, WDJ21468.59+462630.24, Gaia EDR3 1974579637737581568, Gaia DR3 1974579637737581568, Gaia DR2 1974579637737581568, WDJ214608.59+462630.25
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 46 08.45 (0.2) | 21 46 08.46 | 21 46 08.45 | 21 46 08.59 (0.2) | 21 46 08.46 | |||||||
| Declination | 46 26 28.62 (0.2) | 46 26 28.67 | 46 26 28.62 | 46 26 30.26 (0.2) | 46 26 28.67 | |||||||
| Spectral type | DC | DC | DC | DC | ||||||||
| Effective temperature | [K] | 6017.0 (71) | 5609.0 (64) | 6119.0 | 5898.0 | |||||||
| log(g) | [cgs] | 8.18 (0.04) | 7.95 (0.04) | 8.26 | 8.13 | |||||||
| Mass | [M☉] | 0.687 (0.03) | 0.54 (0.03) | 0.75 | 0.653 | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 3.9100 | 3.8350 | 3.8020 | ||||||||
| log(H/He) | -5 | |||||||||||
| 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] | 9.96 (0.2) | 10.03 (0.3) | 10.03 (0.3) | 9.96 | 9.96 (0.2) | 10.03 (0.3) | |||||
| Distance | [pc] | 100.38 (2) | 99.70 (3) | 99.74 (3) | 100.38 | 100.38 (2) | 99.74 (3) | |||||
| Composition | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -84.98219006 (0.2) | -85.77904842 (0.5) | -84.982 (0.2) | -85.77904842 | |||||||
| Proper motion (declination) | [mas/yr] | -102.3141111 (0.2) | -101.7726341 (0.5) | -102.314 (0.2) | -101.7726341 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 18.54 (0.09) | |||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 20.32 (0.07) | 20.53 (0.08) | 20.53 (0.08) | |||||||||
| g magnitude | 19.85 (0.02) | 19.85 (0.02) | ||||||||||
| r magnitude | 19.54 (0.02) | 19.54 (0.02) | ||||||||||
| i magnitude | 19.42 (0.03) | 19.42 (0.03) | ||||||||||
| z magnitude | 19.50 (0.08) | 19.50 (0.08) | ||||||||||
| G magnitude | 19.28 (0.03) | 19.31 | 19.28 | 19.28 (0.004) | 19.31 | |||||||
| BP magnitude | 19.50 (0.03) | 19.47 | 19.47 | |||||||||
| RP magnitude | 18.87 (0.02) | 18.79 | 18.79 | |||||||||
| Pan g magnitude | 19.62 (0.01) | 19.62 (0.01) | ||||||||||
| Pan r magnitude | 19.28 (0.007) | 19.28 (0.006) | ||||||||||
| Pan i magnitude | 19.18 (0.006) | 19.18 (0.007) | ||||||||||
| Pan z magnitude | 19.20 (0.01) | 19.20 (0.01) | ||||||||||
| Pan y magnitude | 19.03 (0.3) | 19.03 (0.3) | ||||||||||
| E(B-V) | 0.014 | |||||||||||
* Constant surface field
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