SDSS J170927.19+211248.5
All names: Gaia DR3 4567805883752607104, SDSS J170927.19+211248.5, SDSS J170927.19+211248.4, GALEX J170927.1+211249, Gaia DR2 4567805883752607104, SDSS J170927.18+211248.5, Gaia EDR3 4567805883752607104
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 09 27.17 (0.2) | 17 09 27.19 | 17 09 27.17 (0.2) | 17 09 27.17 | 17 09 27.20 (0.2) | 17 09 27.19 | |||||
| Declination | 21 12 48.77 (0.2) | 21 12 48.47 | 21 12 48.76 (0.2) | 21 12 48.77 | 21 12 48.45 (0.2) | 21 12 48.53 | |||||
| Spectral type | DC | DC | DC: | DC | DC | DC: | |||||
| Effective temperature | [K] | 10172.0 | 10061.0 | 9118.0 (346) | 10385.0 (248) | ||||||
| log(g) | [cgs] | 8.34 | 8.27 | 7.93 (0.08) | 9.18 (0.5) | ||||||
| Mass | [M☉] | 0.817 | 0.749 | 0.537 (0.07) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.9681 | 0.9050 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 5.72 (0.2) | 6.15 (0.3) | 5.72 | 5.72 (0.2) | ||||||
| Distance | [pc] | 174.69 (7) | 162.48 (9) | 174.69 | 174.69 (7) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -26.50521336 (0.2) | -25.94700218 (0.4) | -26.505 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | 19.93431443 (0.2) | 19.90777181 (0.4) | 19.934 (0.2) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 18.91 (0.02) | 18.91 (0.02) | 18.94 (0.02) | ||||||||
| g magnitude | 18.70 (0.008) | 18.70 (0.008) | 18.77 (0.01) | ||||||||
| r magnitude | 18.80 (0.01) | 18.80 (0.01) | 18.79 (0.01) | ||||||||
| i magnitude | 18.88 (0.01) | 18.88 (0.01) | 18.99 (0.01) | ||||||||
| z magnitude | 19.12 (0.05) | 19.12 (0.05) | 19.15 (0.05) | ||||||||
| G magnitude | 18.82 (0.02) | 18.84 | 18.82 | 18.82 (0.004) | |||||||
| BP magnitude | 18.81 (0.02) | 18.75 | |||||||||
| RP magnitude | 18.62 (0.04) | 18.59 | |||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.025 | ||||||||||
* Constant surface field
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