SDSS J235705.20+202006.7
All names: Gaia DR3 2846564277791381888, SDSS J235705.20+202006.73, SDSS J235705.20+202006.7, GALEX J235705.1+202008, Gaia DR2 2846564277791381888, Gaia EDR3 2846564277791381888, SDSS J235705.19+202006.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2016 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 57 05.21 (0.3) | 23 57 05.20 | 23 57 05.21 (0.4) | 23 57 05.21 | 23 57 05.18 (0.3) | |||||||
| Declination | 20 20 06.49 (0.2) | 20 20 06.72 | 20 20 06.51 (0.2) | 20 20 06.49 | 20 20 06.95 (0.2) | |||||||
| Spectral type | DC: | DC: | DC: | DC | DC | DC | ||||||
| Effective temperature | [K] | 7669.0 | 7422.0 | 7937.0 (135) | 4198.0 (203) | |||||||
| log(g) | [cgs] | 8.52 | 8.45 | 8.00 (0) | 7.58 (0.07) | |||||||
| Mass | [M☉] | 0.932 | 0.867 | 0.345 (0.04) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 3.1850 | 3.0990 | |||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 7.69 (0.3) | 8.00 (0.5) | 7.69 | 7.69 (0.3) | |||||||
| Distance | [pc] | 129.98 (6) | 125.03 (9) | 129.98 | 129.98 (6) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 18.78031717 (0.3) | 18.92916593 (0.7) | 18.78 (0.3) | ||||||||
| Proper motion (declination) | [mas/yr] | -28.80185394 (0.2) | -28.97266565 (0.4) | -28.802 (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 | 20.14 (0.06) | 20.13 (0.06) | 20.14 (0.06) | |||||||||
| g magnitude | 19.57 (0.02) | 19.57 (0.03) | 19.57 (0.02) | |||||||||
| r magnitude | 19.39 (0.02) | 19.41 (0.02) | 19.40 (0.02) | |||||||||
| i magnitude | 19.43 (0.02) | 19.45 (0.03) | 19.43 (0.02) | |||||||||
| z magnitude | 19.42 (0.08) | 19.42 (0.08) | 19.41 (0.08) | |||||||||
| G magnitude | 19.41 (0.04) | 19.44 | 19.41 | 19.41 (0.004) | ||||||||
| BP magnitude | 19.59 (0.04) | 19.53 | ||||||||||
| RP magnitude | 19.14 (0.04) | 19.13 | ||||||||||
| Pan g magnitude | 19.55 (0.01) | |||||||||||
| Pan r magnitude | 19.38 (0.02) | |||||||||||
| Pan i magnitude | 19.45 (0.009) | |||||||||||
| Pan z magnitude | 19.59 (0.02) | |||||||||||
| Pan y magnitude | 19.46 (0.06) | |||||||||||
| E(B-V) | 0.010 | |||||||||||
* Constant surface field
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