Gaia DR2 1430007784951049216
All names: SDSS J163347.06+552144.9, Gaia DR2 1430007784951049216, Gaia DR3 1430007784951049216, SDSS J163347.07+552145.0, WDJ163347.07+552145.27, Gaia EDR3 1430007784951049216, GALEX J163347.1+552144, WDJ163347.07+552145.28, J1633+5521
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | 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 | 16 33 47.07 (0.08) | 16 33 47.07 | 16 33 47.07 | 16 33 47.07 (0.08) | 16 33 47.07 | ||||||||
| Declination | 55 21 44.19 (0.07) | 55 21 44.23 | 55 21 44.19 | 55 21 45.28 (0.07) | 55 21 44.23 | ||||||||
| Spectral type | DC | DC | DC | DZ | DC | ||||||||
| Effective temperature | [K] | 7533.0 (52) | 7500.0 (47) | 7533.0 (53) | 8371.0 | 8083.0 | 7795.0 (131) | ||||||
| log(g) | [cgs] | 8.03 (0.01) | 8.02 (0.01) | 8.02 (0.01) | 8.33 | 8.24 | 8.15 (0.03) | ||||||
| Mass | [M☉] | 0.592 (0.01) | 0.585 (0.01) | 0.587 (0.01) | 0.805 | 0.732 | 0.672 (0.02) | ||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 1.4000 | 1.6630 | 1.6020 | |||||||||
| log(H/He) | -3.6 | -3.6 | -3.6 | ||||||||||
| 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] | 12.08 (0.08) | 12.02 (0.1) | 12.02 (0.1) | 12.08 | 12.08 (0.08) | 12.02 (0.1) | ||||||
| Distance | [pc] | 82.79 (0.5) | 83.19 (0.7) | 83.17 (0.7) | 82.79 | 82.79 (0.5) | 83.17 (0.7) | ||||||
| Composition | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 1.056677317 (0.1) | 0.44128014 (0.3) | 1.057 (0.1) | 0.44128014 | ||||||||
| Proper motion (declination) | [mas/yr] | -67.89731658 (0.1) | -67.87976463 (0.2) | -67.897 (0.1) | -67.87976463 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.55 (0.03) | ||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 18.44 (0.02) | 18.44 (0.02) | 18.44 (0.02) | ||||||||||
| g magnitude | 17.97 (0.006) | 17.97 (0.006) | |||||||||||
| r magnitude | 17.93 (0.006) | 17.93 (0.006) | |||||||||||
| i magnitude | 18.01 (0.008) | 18.01 (0.008) | |||||||||||
| z magnitude | 18.11 (0.03) | 18.11 (0.03) | |||||||||||
| G magnitude | 17.88 (0.01) | 17.90 | 17.88 | 17.88 (0.003) | 17.90 | ||||||||
| BP magnitude | 18.01 (0.01) | 17.97 | 17.97 | ||||||||||
| RP magnitude | 17.68 (0.01) | 17.66 | 17.66 | ||||||||||
| Pan g magnitude | 17.98 (0.004) | 17.98 (0.004) | |||||||||||
| Pan r magnitude | 17.92 (0.006) | 17.92 (0.005) | |||||||||||
| Pan i magnitude | 18.00 (0.006) | 18.00 (0.005) | |||||||||||
| Pan z magnitude | 18.11 (0.007) | 18.11 (0.008) | |||||||||||
| Pan y magnitude | 18.17 (0.02) | 18.17 (0.03) | |||||||||||
| E(B-V) | 0.012 | ||||||||||||
* Constant surface field
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