SDSS J095440.46+120917.1
All names: SDSS J095440.46+120917.2, SDSS J095440.47+120917.20, Gaia DR3 613259757218024576, SDSS J095440.47+120917.2, Gaia EDR3 613259757218024576, SDSS J095440.45+120917.0, Gaia DR2 613259757218024576, SDSS J095440.46+120917.1, GALEX J095440.5+120916
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | 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 | 09 54 40.45 (0.3) | 09 54 40.47 | 09 54 40.45 (0.4) | 09 54 40.47 (0.3) | 09 54 40.47 | ||||||||
| Declination | 12 09 17.02 (0.2) | 12 09 17.20 | 12 09 17.02 (0.3) | 12 09 17.16 (0.2) | 12 09 17.16 | ||||||||
| Spectral type | DBA | DB | DB | DB | DB+MS | ||||||||
| Effective temperature | [K] | 35898.0 (1440) | 34242.0 | 37635.0 | 23771.0 | 33333.0 (992) | |||||||
| log(g) | [cgs] | 7.57 (0.1) | 7.80 | 7.72 | 7.27 | 8.06 (0.1) | |||||||
| Mass | [M☉] | 0.44 (0.04) | 0.524 | 0.496 | 0.317 | 0.652 (0.06) | |||||||
| log(Luminosity) | [L☉] | -0.31 (0.1) | |||||||||||
| Cooling age | [Gyr] | 0.0030 (0.002) | 0.0251 | ||||||||||
| log(H/He) | <-3.302 | ||||||||||||
| 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] | 1.23 (0.3) | 1.12 (0.5) | 1.23 (0.3) | |||||||||
| Distance | [pc] | 810.24 (224) | 892.39 (364) | 810.24 (224) | |||||||||
| Composition | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -19.60773846 (0.3) | -19.34528307 (0.6) | -19.608 (0.3) | |||||||||
| Proper motion (declination) | [mas/yr] | -8.556324394 (0.2) | -9.17863373 (0.6) | -8.556 (0.2) | |||||||||
| 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 | 18.64 (0.02) | 18.64 (0.02) | 18.62 (0.02) | ||||||||||
| g magnitude | 18.92 (0.009) | 18.92 (0.009) | 18.96 (0.02) | ||||||||||
| r magnitude | 19.38 (0.01) | 19.38 (0.01) | 19.35 (0.02) | ||||||||||
| i magnitude | 19.69 (0.02) | 19.69 (0.02) | 19.66 (0.03) | ||||||||||
| z magnitude | 20.05 (0.08) | 20.05 (0.08) | 19.88 (0.1) | ||||||||||
| G magnitude | 19.15 (0.03) | 19.20 | 19.15 (0.004) | ||||||||||
| BP magnitude | 19.02 (0.03) | 18.86 | |||||||||||
| RP magnitude | 19.33 (0.07) | 19.41 | |||||||||||
| Pan g magnitude | 19.00 (0.005) | ||||||||||||
| Pan r magnitude | 19.38 (0.01) | ||||||||||||
| Pan i magnitude | 19.70 (0.01) | ||||||||||||
| Pan z magnitude | 19.94 (0.03) | ||||||||||||
| Pan y magnitude | 19.95 (0.1) | ||||||||||||
| E(B-V) | 0.024 | ||||||||||||
* Constant surface field
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