GALEX 2657873664316279542
All names: USNO-A2.0 0975-07480151, GALEX 2657873664316279542, SDSS J142640.91+101816.4, SDSS J142640.91+101816.40, Gaia EDR3 1177236242182865792, Gaia DR3 1177236242182865792, SDSS J142640.90+101816.3, Gaia DR2 1177236242182865792
| 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 | 14 26 40.89 (0.2) | 14 26 40.91 | 14 26 40.89 (0.3) | 14 26 40.91 (0.3) | 14 26 40.91 | ||||||
| Declination | 10 18 16.65 (0.3) | 10 18 16.37 | 10 18 16.64 (0.3) | 10 18 16.33 (0.3) | 10 18 16.39 | ||||||
| Spectral type | DB | DB | DB | DB | |||||||
| Effective temperature | [K] | 15096.0 | 13617.0 | 15403.0 (221) | |||||||
| log(g) | [cgs] | 7.67 | 8.34 | 8.01 (0.2) | |||||||
| Mass | [M☉] | 0.421 | 0.801 | 0.589 (0.09) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.4626 | |||||||||
| log(H/He) | <-6.078 | ||||||||||
| 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] | 3.98 (0.3) | 4.10 (0.4) | 4.10 (0.4) | |||||||
| Distance | [pc] | 251.20 (19) | 244.02 (22) | 244.02 (22) | |||||||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -18.60624831 (0.3) | -18.41670374 (0.6) | -18.417 (0.6) | |||||||
| Proper motion (declination) | [mas/yr] | 20.35098322 (0.3) | 20.21475104 (0.5) | 20.215 (0.5) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 18.30 (0.3) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 18.80 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 19.26 (0.1) | ||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 18.74 (0.02) | 18.74 (0.02) | 18.77 (0.03) | ||||||||
| g magnitude | 18.80 (0.008) | 18.80 (0.008) | 18.81 (0.02) | ||||||||
| r magnitude | 19.09 (0.01) | 19.09 (0.01) | 19.10 (0.02) | ||||||||
| i magnitude | 19.36 (0.02) | 19.36 (0.02) | 19.37 (0.02) | ||||||||
| z magnitude | 19.66 (0.07) | 19.66 (0.07) | 19.63 (0.07) | ||||||||
| G magnitude | 18.95 (0.02) | 18.99 | 18.99 (0.004) | ||||||||
| BP magnitude | 18.91 (0.02) | 18.85 | |||||||||
| RP magnitude | 19.06 (0.06) | 18.96 | |||||||||
| Pan g magnitude | 18.84 (0.007) | ||||||||||
| Pan r magnitude | 19.10 (0.005) | ||||||||||
| Pan i magnitude | 19.36 (0.006) | ||||||||||
| Pan z magnitude | 19.57 (0.03) | ||||||||||
| Pan y magnitude | 19.51 (0.04) | ||||||||||
| E(B-V) | 0.022 | ||||||||||
* Constant surface field
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