SDSS J123907.23+455455.9
All names: Gaia DR2 1541323334283923200, SDSS J123907.23+455455.9, Gaia DR3 1541323334283923200, Gaia EDR3 1541323334283923200, SDSS J123907.23+455455.91, GALEX J123907.3+455456
| 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 | 12 39 07.22 (0.1) | 12 39 07.23 | 12 39 07.22 (0.2) | 12 39 07.22 | 12 39 07.24 (0.1) | |||||||
| Declination | 45 54 55.80 (0.2) | 45 54 55.90 | 45 54 55.80 (0.2) | 45 54 55.80 | 45 54 55.93 (0.2) | |||||||
| Spectral type | DC | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 6607.0 | 6388.0 | 7093.0 (152) | 6148.0 (241) | |||||||
| log(g) | [cgs] | 8.17 | 8.06 | 8.00 (0) | 8.02 (0.08) | |||||||
| Mass | [M☉] | 0.694 | 0.609 | 0.584 (0.07) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 2.4700 | 2.2070 | |||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 7.38 (0.3) | 7.18 (0.4) | 7.38 | 7.38 (0.3) | |||||||
| Distance | [pc] | 135.53 (6) | 139.25 (8) | 135.53 | 135.53 (6) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -18.01121311 (0.2) | -17.76528026 (0.4) | -18.011 (0.2) | ||||||||
| Proper motion (declination) | [mas/yr] | -8.327359461 (0.2) | -7.844707473 (0.5) | -8.327 (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 | 20.55 (0.05) | 20.55 (0.05) | 20.56 (0.05) | |||||||||
| g magnitude | 19.86 (0.01) | 19.86 (0.06) | 19.86 (0.01) | |||||||||
| r magnitude | 19.62 (0.01) | 19.61 (0.2) | 19.63 (0.01) | |||||||||
| i magnitude | 19.58 (0.02) | 19.59 (1) | 19.59 (0.02) | |||||||||
| z magnitude | 19.71 (0.06) | 19.70 (0.07) | 19.71 (0.06) | |||||||||
| G magnitude | 19.61 (0.03) | 19.66 | 19.61 | 19.61 (0.003) | ||||||||
| BP magnitude | 19.78 (0.03) | 19.72 | ||||||||||
| RP magnitude | 19.21 (0.03) | 19.11 | ||||||||||
| Pan g magnitude | 19.82 (0.01) | |||||||||||
| Pan r magnitude | 19.63 (0.01) | |||||||||||
| Pan i magnitude | 19.55 (0.01) | |||||||||||
| Pan z magnitude | 19.56 (0.03) | |||||||||||
| Pan y magnitude | 19.57 (0.04) | |||||||||||
| E(B-V) | 0.007 | |||||||||||
* Constant surface field
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