SDSS J022909.51+251024.4
All names: Gaia DR2 102314195529969792, Gaia EDR3 102314195529969792, SDSS J022909.51+251024.4, SDSS J022909.52+251024.4, SDSS J022909.51+251024.5, Gaia DR3 102314195529969792, GALEX J022909.5+251024
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 29 09.56 (0.2) | 02 29 09.53 | 02 29 09.56 (0.2) | 02 29 09.56 | 02 29 09.48 (0.2) | 02 29 09.51 | |||||
| Declination | 25 10 24.41 (0.2) | 25 10 24.47 | 25 10 24.41 (0.2) | 25 10 24.41 | 25 10 24.54 (0.2) | 25 10 24.48 | |||||
| Spectral type | DB | DQ | DB | DQ | DQ | ||||||
| Effective temperature | [K] | 8144.0 | 7830.0 (304) | 10155.0 (84) | |||||||
| log(g) | [cgs] | 8.13 | 7.97 (0.08) | 9.54 (0.3) | |||||||
| Mass | [M☉] | 0.655 | 0.559 (0.07) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 1.2560 | |||||||||
| log(H/He) | |||||||||||
| 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] | 7.27 (0.2) | 7.26 (0.3) | 7.27 | 7.27 (0.2) | ||||||
| Distance | [pc] | 137.64 (4) | 137.79 (5) | 137.64 | 137.63 (4) | ||||||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 71.62568595 (0.3) | 71.2625112 (0.6) | 71.626 (0.3) | |||||||
| Proper motion (declination) | [mas/yr] | -8.018448953 (0.2) | -6.972854558 (0.5) | -8.018 (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 (0.03) | 19.19 (0.03) | 19.20 (0.03) | ||||||||
| g magnitude | 18.87 (0.009) | 18.87 (0.009) | 18.90 (0.02) | ||||||||
| r magnitude | 18.84 (0.01) | 18.84 (0.01) | 18.82 (0.01) | ||||||||
| i magnitude | 18.90 (0.01) | 18.90 (0.01) | 18.88 (0.02) | ||||||||
| z magnitude | 19.01 (0.04) | 19.01 (0.04) | 18.94 (0.04) | ||||||||
| G magnitude | 18.79 (0.03) | 18.82 | 18.79 | 18.79 (0.004) | |||||||
| BP magnitude | 18.85 (0.03) | 18.87 | |||||||||
| RP magnitude | 18.58 (0.05) | 18.53 | |||||||||
| Pan g magnitude | 18.87 (0.01) | ||||||||||
| Pan r magnitude | 18.82 (0.007) | ||||||||||
| Pan i magnitude | 18.91 (0.009) | ||||||||||
| Pan z magnitude | 19.00 (0.02) | ||||||||||
| Pan y magnitude | 19.02 (0.04) | ||||||||||
| E(B-V) | 0.045 | ||||||||||
* Constant surface field
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