SDSS J083450.81+160408.2
All names: SDSS J083450.81+160408.20, Gaia DR3 657939511724515712, SDSS J083450.80+160408.2, Gaia DR2 657939511724515712, GALEX J083450.7+160407, SDSS J083450.81+160408.2, Gaia EDR3 657939511724515712
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Genest-Beaulieu & Bergeron 2019 (photometric) | MWDD HE | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 34 50.81 (0.4) | 08 34 50.80 | 08 34 50.81 (0.5) | 08 34 50.80 (0.4) | 08 34 50.81 | |||||||
| Declination | 16 04 08.13 (0.3) | 16 04 08.21 | 16 04 08.13 (0.3) | 16 04 08.22 (0.3) | 16 04 08.21 | |||||||
| Spectral type | DB | DB | DB | DB+MS | ||||||||
| Effective temperature | [K] | 14549.0 | 14243.0 | 12257.0 | 14698.0 (356) | |||||||
| log(g) | [cgs] | 8.20 | 7.21 | 7.04 | 8.35 (0.2) | |||||||
| Mass | [M☉] | 0.711 | 0.266 | 0.221 | 0.801 (0.2) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.1497 | ||||||||||
| log(H/He) | -6.006 | |||||||||||
| 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] | 1.87 (0.6) | 1.30 (0.6) | 1.87 (0.6) | ||||||||
| Distance | [pc] | 535.73 (161) | 768.52 (382) | 535.73 (161) | ||||||||
| Composition | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 5.077988083 (0.6) | 3.823984936 (1) | 5.078 (0.6) | ||||||||
| Proper motion (declination) | [mas/yr] | -5.641362166 (0.3) | -5.477531691 (0.6) | -5.641 (0.3) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | |||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.66 (0.03) | 19.66 (0.03) | 19.66 (0.03) | |||||||||
| g magnitude | 19.70 (0.01) | 19.70 (0.01) | 19.71 (0.02) | |||||||||
| r magnitude | 19.94 (0.02) | 19.93 (0.02) | 19.93 (0.02) | |||||||||
| i magnitude | 20.11 (0.03) | 20.11 (0.03) | 20.13 (0.03) | |||||||||
| z magnitude | 20.14 (0.1) | 20.14 (0.1) | 20.21 (0.1) | |||||||||
| G magnitude | 19.84 (0.05) | 19.87 | 19.84 (0.005) | |||||||||
| BP magnitude | 19.85 (0.05) | 19.66 | ||||||||||
| RP magnitude | 19.91 (0.07) | 19.67 | ||||||||||
| Pan g magnitude | 19.72 (0.01) | |||||||||||
| Pan r magnitude | 19.98 (0.008) | |||||||||||
| Pan i magnitude | 20.17 (0.01) | |||||||||||
| Pan z magnitude | 20.31 (0.03) | |||||||||||
| Pan y magnitude | 20.03 (0.1) | |||||||||||
| E(B-V) | 0.033 | |||||||||||
* Constant surface field
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