SDSS J154334.70+204355.7
All names: GALEX J154334.6+204356, SDSS J154334.70+204355.7, Gaia DR2 1216297324771602560, Gaia DR3 1216297324771602560, SDSS J154334.69+204355.7, SDSS J154334.70+204355.6, Gaia EDR3 1216297324771602560, SDSS J154334.69+204355.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 43 34.71 (0.2) | 15 43 34.70 | 15 43 34.71 (0.3) | 15 43 34.69 (0.2) | 15 43 34.70 | ||||||
| Declination | 20 43 55.60 (0.2) | 20 43 55.70 | 20 43 55.61 (0.3) | 20 43 55.70 (0.2) | 20 43 55.68 | ||||||
| Spectral type | DC: | DC: | DQ | DC: | DC | ||||||
| Effective temperature | [K] | 16292.0 | 16687.0 | 13592.0 (231) | |||||||
| log(g) | [cgs] | 8.56 | 8.63 | 9.93 (0.07) | |||||||
| Mass | [M☉] | 0.967 | 0.993 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.3940 | 0.4260 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.22 (0.3) | 3.61 (0.4) | 3.22 (0.3) | |||||||
| Distance | [pc] | 310.30 (27) | 276.97 (29) | 310.31 (27) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 10.99792213 (0.2) | 10.80936305 (0.5) | 10.998 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -5.796141635 (0.3) | -5.285279917 (0.5) | -5.796 (0.3) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.07 (0.02) | 19.07 (0.02) | 19.08 (0.03) | ||||||||
| g magnitude | 19.09 (0.01) | 19.09 (0.01) | 19.13 (0.02) | ||||||||
| r magnitude | 19.46 (0.01) | 19.46 (0.01) | 19.45 (0.02) | ||||||||
| i magnitude | 19.66 (0.02) | 19.66 (0.02) | 19.71 (0.03) | ||||||||
| z magnitude | 19.98 (0.1) | 19.98 (0.1) | 19.89 (0.1) | ||||||||
| G magnitude | 19.28 (0.03) | 19.31 | 19.28 (0.004) | ||||||||
| BP magnitude | 19.31 (0.03) | 19.26 | |||||||||
| RP magnitude | 19.51 (0.05) | 19.44 | |||||||||
| Pan g magnitude | 19.14 (0.007) | ||||||||||
| Pan r magnitude | 19.46 (0.01) | ||||||||||
| Pan i magnitude | 19.71 (0.006) | ||||||||||
| Pan z magnitude | 19.96 (0.02) | ||||||||||
| Pan y magnitude | 19.83 (0.2) | ||||||||||
| E(B-V) | 0.050 | ||||||||||
* Constant surface field
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