GALEX 2685774897152526539
All names: Gaia DR2 1557422319114775296, SDSS J125914.25+505218.5, USNO-A2.0 1350-08198418, GALEX 2685774897152526539, Gaia EDR3 1557422319115199616, SDSS J125914.25+505218.59, SDSS J125914.24+505218.5, Gaia DR3 1557422319115199616
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 59 14.21 (0.2) | 12 59 14.25 | 12 59 14.21 (0.2) | 12 59 14.26 (0.2) | |||||||
| Declination | 50 52 18.50 (0.2) | 50 52 18.53 | 50 52 18.50 (0.2) | 50 52 18.51 (0.2) | |||||||
| Spectral type | DB: | DB: | DB | DC | |||||||
| Effective temperature | [K] | 12707.0 | 11076.0 | 14172.0 (433) | |||||||
| log(g) | [cgs] | 6.89 | 7.99 | 7.57 (0.4) | |||||||
| Mass | [M☉] | 0.197 | 0.574 | 0.433 (0.1) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.4664 | |||||||||
| log(H/He) | <-6.139 | ||||||||||
| 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] | 2.87 (0.3) | 3.01 (0.3) | 3.01 (0.3) | |||||||
| Distance | [pc] | 348.31 (32) | 332.67 (36) | 332.67 (36) | |||||||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -29.16045209 (0.3) | -28.69137553 (0.5) | -28.691 (0.5) | |||||||
| Proper motion (declination) | [mas/yr] | -0.969814785 (0.2) | -0.605026044 (0.5) | -0.605 (0.5) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 18.60 (0.3) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 18.90 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.54 (0.03) | 19.54 (0.03) | 19.54 (0.03) | ||||||||
| g magnitude | 19.52 (0.01) | 19.52 (0.01) | 19.52 (0.01) | ||||||||
| r magnitude | 19.70 (0.02) | 19.70 (0.02) | 19.70 (0.02) | ||||||||
| i magnitude | 19.89 (0.03) | 19.89 (0.03) | 19.89 (0.03) | ||||||||
| z magnitude | 20.04 (0.09) | 20.04 (0.09) | 20.04 (0.09) | ||||||||
| G magnitude | 19.60 (0.03) | 19.65 | 19.65 (0.004) | ||||||||
| BP magnitude | 19.63 (0.03) | 19.54 | |||||||||
| RP magnitude | 19.52 (0.05) | 19.56 | |||||||||
| Pan g magnitude | 19.54 (0.01) | ||||||||||
| Pan r magnitude | 19.70 (0.01) | ||||||||||
| Pan i magnitude | 19.89 (0.01) | ||||||||||
| Pan z magnitude | 20.08 (0.02) | ||||||||||
| Pan y magnitude | 19.88 (0.05) | ||||||||||
| E(B-V) | 0.018 | ||||||||||
* Constant surface field
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