SDSS J224209.86-085735.5
All names: SDSS J224209.85-085735.5, Gaia DR3 2609329624597251712, SDSS J224209.86-085735.4, SDSS J224209.86-085735.50, SDSS J224209.86-085735.5, GALEX J224209.8-085735, Gaia EDR3 2609329624597251712, Gaia DR2 2609329624597251712
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | MWDD HE | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 42 09.87 (0.5) | 22 42 09.86 | 22 42 09.87 (0.5) | 22 42 09.85 (0.5) | 22 42 09.86 | ||||||
| Declination | -08 57 35.42 (0.5) | -08 57 35.51 | -08 57 35.43 (0.6) | -08 57 35.52 (0.5) | -08 57 35.49 | ||||||
| Spectral type | DB: | DC | DB: | DC | |||||||
| Effective temperature | [K] | 12908.0 | 10614.0 | 12081.0 (544) | |||||||
| log(g) | [cgs] | 8.60 | 7.53 | 8.25 (0.5) | |||||||
| Mass | [M☉] | 0.971 | 0.35 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.3181 | |||||||||
| log(H/He) | -5.873 | ||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(N/He) | |||||||||||
| log(O/He) | |||||||||||
| log(Na/He) | |||||||||||
| log(Mg/He) | |||||||||||
| log(Al/He) | |||||||||||
| log(Si/He) | |||||||||||
| log(P/He) | |||||||||||
| log(S/He) | |||||||||||
| log(Cl/He) | |||||||||||
| log(Sc/He) | |||||||||||
| log(Ti/He) | |||||||||||
| log(V/He) | |||||||||||
| log(Cr/He) | |||||||||||
| log(Mn/He) | |||||||||||
| log(Fe/He) | |||||||||||
| log(Co/He) | |||||||||||
| log(Ni/He) | |||||||||||
| log(Cu/He) | |||||||||||
| log(Zn/He) | |||||||||||
| log(Ga/He) | |||||||||||
| log(Ge/He) | |||||||||||
| log(Sr/He) | |||||||||||
| Parallax | [mas] | 2.43 (0.5) | 2.16 (0.6) | 2.43 (0.5) | |||||||
| Distance | [pc] | 411.09 (88) | 462.00 (136) | 411.08 (88) | |||||||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 16.68643068 (0.5) | 18.5513924 (1) | 16.686 (0.5) | |||||||
| Proper motion (declination) | [mas/yr] | 5.683636616 (0.6) | 6.297448181 (1) | 5.684 (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 | 19.82 (0.05) | 19.82 (0.05) | 19.79 (0.05) | ||||||||
| g magnitude | 19.77 (0.02) | 19.77 (0.02) | 19.76 (0.02) | ||||||||
| r magnitude | 19.84 (0.02) | 19.84 (0.03) | 19.83 (0.03) | ||||||||
| i magnitude | 20.15 (0.05) | 20.15 (0.05) | 20.16 (0.05) | ||||||||
| z magnitude | 20.13 (0.2) | 20.13 (0.2) | 20.05 (0.2) | ||||||||
| G magnitude | 19.79 (0.08) | 19.85 | 19.79 (0.007) | ||||||||
| BP magnitude | 19.77 (0.08) | 19.70 | |||||||||
| RP magnitude | 19.80 (0.1) | 19.66 | |||||||||
| Pan g magnitude | 19.76 (0.02) | ||||||||||
| Pan r magnitude | 19.93 (0.01) | ||||||||||
| Pan i magnitude | 20.07 (0.01) | ||||||||||
| Pan z magnitude | 20.18 (0.03) | ||||||||||
| Pan y magnitude | 20.24 (0.1) | ||||||||||
| E(B-V) | 0.053 | ||||||||||
* Constant surface field
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