SDSS J122130.33+544836.0
All names: Gaia DR3 1572757654463438208, Gaia DR2 1572757654463438208, SDSS J122130.32+544835.8, SDSS J122130.33+544836.06, Gaia EDR3 1572757654463438208, SDSS J122130.33+544836.0
| 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 | 12 21 30.30 (0.6) | 12 21 30.32 | 12 21 30.31 (0.9) | 12 21 30.34 (0.6) | |||||||
| Declination | 54 48 35.58 (0.6) | 54 48 35.81 | 54 48 35.59 (0.9) | 54 48 35.91 (0.6) | |||||||
| Spectral type | DC: | DC: | DC: | DC | DA | ||||||
| Effective temperature | [K] | 7932.0 | 7730.0 | 8669.0 (246) | |||||||
| log(g) | [cgs] | 8.40 | 8.34 | 8.00 (0) | |||||||
| Mass | [M☉] | 0.852 | 0.796 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 2.3860 | 2.3430 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.13 (0.8) | 3.90 (1) | 4.13 (0.8) | |||||||
| Distance | [pc] | 242.14 (49) | 256.13 (80) | 242.14 (49) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -16.44664195 (0.7) | -14.7698609 (2) | -16.447 (0.7) | |||||||
| Proper motion (declination) | [mas/yr] | -20.94567413 (1) | -20.18575266 (2) | -20.946 (1) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 21.15 (0.08) | 21.12 (0.07) | 21.12 (0.07) | ||||||||
| g magnitude | 20.73 (0.03) | 20.74 (0.03) | 20.73 (0.03) | ||||||||
| r magnitude | 20.64 (0.03) | 20.65 (0.03) | 20.64 (0.03) | ||||||||
| i magnitude | 20.80 (0.05) | 20.82 (0.04) | 20.82 (0.04) | ||||||||
| z magnitude | 20.61 (0.1) | 20.60 (0.1) | 20.60 (0.1) | ||||||||
| G magnitude | 20.65 (0.1) | 20.72 | 20.65 (0.009) | ||||||||
| BP magnitude | 20.66 (0.1) | 20.64 | |||||||||
| RP magnitude | 20.72 (0.2) | 20.30 | |||||||||
| Pan g magnitude | 20.74 (0.02) | ||||||||||
| Pan r magnitude | 20.70 (0.02) | ||||||||||
| Pan i magnitude | 20.67 (0.02) | ||||||||||
| Pan z magnitude | 20.87 (0.05) | ||||||||||
| Pan y magnitude | 20.15 (0.2) | ||||||||||
| E(B-V) | 0.017 | ||||||||||
* Constant surface field
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