Gaia DR2 4384015024746850432
All names: WDJ163949.38+010613.09, LSPM J1639+0106, Gaia DR2 4384015024746850432, Gaia EDR3 4384015024746850432, Gaia DR3 4384015024746850432, J1639+0106, SDSS J163949.36+010613.0, USNO-B1.0 0911-00270638
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Bergeron et al. 2022 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 39 49.17 (0.4) | 16 39 49.18 | 16 39 49.38 (0.4) | 16 39 49.18 | |||||||
| Declination | 01 06 12.48 (0.2) | 01 06 12.50 | 01 06 13.08 (0.2) | 01 06 12.50 | |||||||
| Spectral type | DC-IRfaint | DC | |||||||||
| Effective temperature | [K] | 4590.0 (79) | 4590.0 (79) | 6347.0 | 6162.0 | ||||||
| log(g) | [cgs] | 8.09 (0.08) | 8.77 | 8.68 | |||||||
| Mass | [M☉] | 0.624 (0.05) | 0.624 (0.05) | 1.08 | 1.018 | ||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 7.0090 | 5.0060 | 5.0510 | |||||||
| log(H/He) | -2.74 | -2.74 | |||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 11.10 (0.5) | 10.99 (0.6) | 11.10 (0.5) | 10.99 (0.6) | ||||||
| Distance | [pc] | 90.06 (4) | 90.98 (5) | 90.06 (4) | 90.98 (5) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -199.648725 (0.6) | -200.975462 (1) | -199.649 (0.6) | -200.975462 | ||||||
| Proper motion (declination) | [mas/yr] | -37.56681751 (0.3) | -38.17599201 (0.7) | -37.567 (0.3) | -38.17599201 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 20.80 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 19.20 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 21.40 (0.1) | 21.58 (0.1) | |||||||||
| g magnitude | 20.23 (0.02) | 20.22 (0.02) | |||||||||
| r magnitude | 19.66 (0.02) | 19.63 (0.02) | |||||||||
| i magnitude | 19.54 (0.03) | 19.60 (0.02) | |||||||||
| z magnitude | 20.23 (0.1) | 19.88 (0.1) | |||||||||
| G magnitude | 19.79 (0.06) | 19.83 | 19.79 (0.005) | 19.83 | |||||||
| BP magnitude | 20.01 (0.06) | 20.30 | 20.30 | ||||||||
| RP magnitude | 19.48 (0.05) | 19.39 | 19.39 | ||||||||
| Pan g magnitude | 20.17 (0.02) | ||||||||||
| Pan r magnitude | 19.67 (0.009) | ||||||||||
| Pan i magnitude | 19.64 (0.008) | ||||||||||
| Pan z magnitude | 19.86 (0.01) | ||||||||||
| Pan y magnitude | 20.22 (0.1) | ||||||||||
| E(B-V) | 0.006 | ||||||||||
* Constant surface field
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