SDSS J122024.13+231721.8
All names: SDSS J122024.13+231721.8, Gaia EDR3 3953933835997073920, GALEX J122024.1+231722, SDSS J122024.14+231721.8, SDSS J122024.13+231721.7, Gaia DR2 3953933835997073920, Gaia DR3 3953933835997073920, SDSS J122024.12+231721.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 20 24.13 (0.1) | 12 20 24.13 | 12 20 24.13 (0.2) | 12 20 24.13 | 12 20 24.13 | 12 20 24.12 (0.1) | 12 20 24.13 | |||||
| Declination | 23 17 21.93 (0.09) | 23 17 21.78 | 23 17 21.93 (0.1) | 23 17 21.80 | 23 17 21.93 | 23 17 21.76 (0.09) | 23 17 21.80 | |||||
| Spectral type | DA+M | DA+M | DA | DA+M | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 13831.0 | 29727.0 (283) | 18444.0 (1107) | 29752.0 (211) | |||||||
| log(g) | [cgs] | 6.78 | 7.69 (0.07) | 7.17 (0.08) | 7.68 (0.04) | |||||||
| Mass | [M☉] | 0.207 | 0.5 (0.03) | 0.295 (0.03) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(C/H) | ||||||||||||
| log(N/H) | ||||||||||||
| log(O/H) | ||||||||||||
| log(Na/H) | ||||||||||||
| log(Mg/H) | ||||||||||||
| log(Al/H) | ||||||||||||
| log(Si/H) | ||||||||||||
| log(P/H) | ||||||||||||
| log(S/H) | ||||||||||||
| log(Sc/H) | ||||||||||||
| log(Ti/H) | ||||||||||||
| log(Cr/H) | ||||||||||||
| log(Mn/H) | ||||||||||||
| log(Fe/H) | ||||||||||||
| log(Ni/H) | ||||||||||||
| Parallax | [mas] | 2.17 (0.1) | 1.94 (0.2) | 2.17 | 2.17 (0.1) | |||||||
| Distance | [pc] | 460.53 (29) | 515.70 (51) | 553.00 (29) | 460.53 | 460.53 (29) | ||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 5.867307875 (0.1) | 5.812356572 (0.3) | 5.867 (0.1) | ||||||||
| Proper motion (declination) | [mas/yr] | 10.92755499 (0.1) | 10.98284867 (0.2) | 10.928 (0.1) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 17.72 (0.01) | 17.75 | 17.72 (0.01) | 17.75 (0.02) | ||||||||
| g magnitude | 17.93 (0.006) | 17.95 | 17.93 (0.006) | 17.95 (0.02) | ||||||||
| r magnitude | 18.37 (0.008) | 18.37 | 18.37 (0.008) | 18.37 (0.01) | ||||||||
| i magnitude | 18.52 (0.01) | 18.51 | 18.52 (0.01) | 18.51 (0.01) | ||||||||
| z magnitude | 18.60 (0.03) | 18.57 | 18.60 (0.03) | 18.57 (0.03) | ||||||||
| G magnitude | 18.12 (0.01) | 18.14 | 18.12 | 18.12 (0.003) | ||||||||
| BP magnitude | 18.06 (0.01) | 17.97 | ||||||||||
| RP magnitude | 18.17 (0.02) | 18.16 | ||||||||||
| Pan g magnitude | 18.00 (0.006) | |||||||||||
| Pan r magnitude | 18.37 (0.005) | |||||||||||
| Pan i magnitude | 18.55 (0.006) | |||||||||||
| Pan z magnitude | 18.60 (0.006) | |||||||||||
| Pan y magnitude | 18.58 (0.008) | |||||||||||
| E(B-V) | 0.017 | |||||||||||
* Constant surface field
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