LSPM J1521+1358
All names: SDSS J152120.94+135854.7, SDSS J152120.91+135853.6, 2MASS J15212098+1358555, PSO J152120.915+135853.521, Gaia DR2 1170894503927889024, SDSS J152120.91+135853.62, WDJ152120.97+135855.62
| Parameter | Unit | MWDD H | MWDD HE | Pan-STARRS DR1 | Gaia DR2 | Kepler et al. 2015 | SDSS DR10 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 21 20.89 (0.08) | 15 21 20.94 | 15 21 20.98 | 15 21 20.89 | |||||
| Declination | 13 58 53.05 (0.07) | 13 58 54.77 | 13 58 55.50 | 13 58 53.05 | |||||
| Spectral type | DC | DC | DC | DC | |||||
| Effective temperature | [K] | 10235.0 | 10299.0 | 11507.0 (140) | |||||
| log(g) | [cgs] | 8.13 | 8.07 | 8.00 (0) | |||||
| Mass | [M☉] | 0.682 | 0.625 | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.6864 | 0.6415 | ||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 13.14 (0.1) | 13.14 (0.1) | ||||||
| Distance | [pc] | 76.13 (0.6) | 76.13 (0.6) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -78.8155392251 (0.1) | -70.0 | -78.8155392251 | |||||
| Proper motion (declination) | [mas/yr] | -165.781967931 (0.2) | -163.0 | -165.781967931 | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 17.50 | ||||||||
| V magnitude | |||||||||
| R magnitude | 16.50 | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.62 | ||||||||
| H magnitude | 16.76 | ||||||||
| K magnitude | 16.19 | ||||||||
| u magnitude | 16.89 (0.01) | 16.89 (0.008) | 16.89 | 16.89 (0.008) | |||||
| g magnitude | 16.68 (0) | 16.68 (0.004) | 16.68 | 16.68 (0.004) | |||||
| r magnitude | 16.79 (0) | 16.79 (0.005) | 16.79 | 16.79 (0.005) | |||||
| i magnitude | 16.94 (0.01) | 16.94 (0.006) | 16.94 | 16.94 (0.006) | |||||
| z magnitude | 17.13 (0.01) | 17.13 (0.01) | 17.12 | 17.13 (0.01) | |||||
| G magnitude | 16.72 | 16.72 | |||||||
| BP magnitude | 16.74 | 16.74 | |||||||
| RP magnitude | 16.62 | 16.62 | |||||||
| Pan g magnitude | 16.69 (0.004) | ||||||||
| Pan r magnitude | 16.79 (0.003) | ||||||||
| Pan i magnitude | 16.94 (0.005) | ||||||||
| Pan z magnitude | 17.11 (0.005) | ||||||||
| Pan y magnitude | 17.24 (0.007) |
* Constant surface field
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