SDSS J224558.86+295245.8
All names: SDSS J224558.86+295245.8, SDSS J224558.85+295245.6, SDSS J224558.85+295245.7, Gaia EDR3 1887897748775371904, Gaia DR2 1887897748775371904, Gaia DR3 1887897748775371904
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Koester & Kepler 2015 | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 45 58.85 (0.1) | 22 45 58.86 | 22 45 58.85 (0.2) | 22 45 58.85 | 22 45 58.86 (0.1) | 22 45 58.86 | |||||||
| Declination | 29 52 45.65 (0.2) | 29 52 45.78 | 29 52 45.65 (0.3) | 29 52 45.65 | 29 52 45.92 (0.2) | 29 52 45.83 | |||||||
| Spectral type | DC:DB:DC | DC:DB:DC | DB | DBA | DC:DB:DC | DB: | |||||||
| Effective temperature | [K] | 10276.0 | 10642.0 | 11112.0 (139) | 11131.0 (540) | 12107.0 (521) | |||||||
| log(g) | [cgs] | 7.76 | 7.73 | 8.00 (0) | 7.75 (0.1) | 8.61 (0.4) | |||||||
| Mass | [M☉] | 0.472 | 0.439 | 0.449 (0.08) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.4217 | 0.3789 | ||||||||||
| log(H/He) | -5.29 (0.2) | ||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | <-10.37 | ||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 3.12 (0.3) | 3.23 (0.3) | 3.12 | 3.12 (0.3) | ||||||||
| Distance | [pc] | 320.48 (26) | 309.14 (33) | 256.00 | 320.48 | 320.48 (26) | |||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -10.53444147 (0.2) | -10.05535331 (0.5) | -10.534 (0.2) | |||||||||
| Proper motion (declination) | [mas/yr] | -17.26431063 (0.2) | -16.99833694 (0.5) | -17.264 (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 | 19.19 (0.02) | 19.19 (0.02) | 19.17 (0.03) | ||||||||||
| g magnitude | 19.12 (0.01) | 19.12 (0.01) | 19.13 (0.02) | ||||||||||
| r magnitude | 19.26 (0.01) | 19.26 (0.01) | 19.27 (0.02) | ||||||||||
| i magnitude | 19.43 (0.02) | 19.43 (0.02) | 19.44 (0.02) | ||||||||||
| z magnitude | 19.59 (0.07) | 19.59 (0.07) | 19.61 (0.07) | ||||||||||
| G magnitude | 19.18 (0.02) | 19.22 | 19.18 | 19.18 (0.004) | |||||||||
| BP magnitude | 19.31 (0.02) | 19.20 | |||||||||||
| RP magnitude | 19.20 (0.04) | 19.11 | |||||||||||
| Pan g magnitude | 19.16 (0.01) | ||||||||||||
| Pan r magnitude | 19.31 (0.004) | ||||||||||||
| Pan i magnitude | 19.45 (0.009) | ||||||||||||
| Pan z magnitude | 19.62 (0.01) | ||||||||||||
| Pan y magnitude | 19.74 (0.05) | ||||||||||||
| E(B-V) | 0.044 | ||||||||||||
* Constant surface field
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