SDSS J234457.91+160233.1
All names: SDSS J234457.91+160233.1, Gaia DR3 2771813322646360960, SDSS J234457.91+160233.15, Gaia DR2 2771813322646360960, Gaia EDR3 2771813322646360960, GALEX J234457.9+160232
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 44 57.92 (0.6) | 23 44 57.91 | 23 44 57.92 (0.7) | 23 44 57.91 (0.6) | |||||||
| Declination | 16 02 33.04 (0.5) | 16 02 33.14 | 16 02 33.05 (0.5) | 16 02 33.12 (0.5) | |||||||
| Spectral type | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 7119.0 | 6934.0 | 8122.0 (215) | |||||||
| log(g) | [cgs] | 8.49 | 8.42 | 8.00 (0) | |||||||
| Mass | [M☉] | 0.911 | 0.846 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 3.6360 | 3.5150 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.11 (0.7) | 5.38 (1) | 3.11 (0.7) | |||||||
| Distance | [pc] | 321.77 (77) | 185.71 (38) | 321.77 (77) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 13.17294875 (0.9) | 15.19176381 (2) | 13.173 (0.9) | |||||||
| Proper motion (declination) | [mas/yr] | -4.605508529 (0.6) | -5.861342186 (1) | -4.606 (0.6) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 21.05 (0.09) | 21.09 (0.08) | 21.05 (0.09) | ||||||||
| g magnitude | 20.62 (0.03) | 20.62 (0.03) | 20.61 (0.03) | ||||||||
| r magnitude | 20.55 (0.03) | 20.53 (0.03) | 20.53 (0.03) | ||||||||
| i magnitude | 20.48 (0.05) | 20.47 (0.05) | 20.46 (0.05) | ||||||||
| z magnitude | 20.52 (0.2) | 20.49 (0.2) | 20.50 (0.2) | ||||||||
| G magnitude | 20.48 (0.09) | 20.54 | 20.48 (0.007) | ||||||||
| BP magnitude | 20.75 (0.09) | 20.84 | |||||||||
| RP magnitude | 20.24 (0.1) | 20.12 | |||||||||
| Pan g magnitude | 20.63 (0.04) | ||||||||||
| Pan r magnitude | 20.50 (0.02) | ||||||||||
| Pan i magnitude | 20.52 (0.03) | ||||||||||
| Pan z magnitude | 20.59 (0.08) | ||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.042 | ||||||||||
* Constant surface field
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