SDSS J174048.41+252305.9
All names: Gaia DR3 4581805071956931712, GALEX J174048.3+252305, SDSS J174048.41+252306.1, Gaia EDR3 4581805071956931712, SDSS J174048.41+252306.0, SDSS J174048.41+252305.9, Gaia DR2 4581805071956931712
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 40 48.41 (0.1) | 17 40 48.41 | 17 40 48.41 (0.2) | 17 40 48.41 (0.1) | 17 40 48.41 | ||||||
| Declination | 25 23 06.01 (0.2) | 25 23 06.00 | 25 23 06.01 (0.2) | 25 23 06.01 (0.2) | 25 23 06.07 | ||||||
| Spectral type | DAO | D+M | DA | DA | DA | ||||||
| Effective temperature | [K] | 82266.0 (13812) | 27813.0 | 85860.0 (6436) | |||||||
| log(g) | [cgs] | 7.66 (0.5) | 5.46 | 7.35 (0.2) | |||||||
| Mass | [M☉] | 0.62 (0.2) | 0.099 | 0.562 (0.05) | |||||||
| log(Luminosity) | [L☉] | 1.19 (0.5) | |||||||||
| Cooling age | [Gyr] | 0.0003 (0.0003) | |||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(C/H) | |||||||||||
| log(N/H) | |||||||||||
| log(O/H) | |||||||||||
| log(Na/H) | |||||||||||
| log(Mg/H) | |||||||||||
| log(Al/H) | |||||||||||
| log(Si/H) | |||||||||||
| log(P/H) | |||||||||||
| log(S/H) | |||||||||||
| log(Sc/H) | |||||||||||
| log(Ti/H) | |||||||||||
| log(Cr/H) | |||||||||||
| log(Mn/H) | |||||||||||
| log(Fe/H) | |||||||||||
| log(Ni/H) | |||||||||||
| Parallax | [mas] | 0.35 (0.2) | -0.20 (0.3) | 0.35 (0.2) | |||||||
| Distance | [pc] | 2864.19 (1879) | 2864.51 (1880) | ||||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 2.696386708 (0.2) | 1.99285484 (0.4) | 2.696 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | 0.10496716 (0.2) | 0.286700834 (0.6) | 0.105 (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 | 18.63 (0.02) | 18.63 (0.02) | 18.64 (0.02) | ||||||||
| g magnitude | 19.03 (0.009) | 19.07 (0.01) | 19.07 (0.01) | ||||||||
| r magnitude | 19.54 (0.02) | 19.58 (0.01) | 19.60 (0.02) | ||||||||
| i magnitude | 19.89 (0.03) | 19.91 (0.03) | 19.94 (0.02) | ||||||||
| z magnitude | 20.07 (0.1) | 20.09 (0.1) | 20.10 (0.09) | ||||||||
| G magnitude | 19.31 (0.02) | 19.36 | 19.31 (0.004) | ||||||||
| BP magnitude | 19.16 (0.02) | 19.04 | |||||||||
| RP magnitude | 19.70 (0.05) | 19.61 | |||||||||
| Pan g magnitude | 19.12 (0.01) | ||||||||||
| Pan r magnitude | 19.60 (0.009) | ||||||||||
| Pan i magnitude | 19.96 (0.02) | ||||||||||
| Pan z magnitude | 20.22 (0.03) | ||||||||||
| Pan y magnitude | 19.96 (0.2) | ||||||||||
| E(B-V) | 0.047 | ||||||||||
* Constant surface field
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