SDSS J084054.14+145709.0
All names: USNO-B1.0 1049-00171200, NLTT 20024, LP 425-348, SDSS J084054.14+145708.9, SDSS J084054.14+145709.0, Gaia DR3 609528255272111360, Gaia DR2 609528255272111360, EPIC 211629697, Gaia EDR3 609528255272111360, GALEX J084054.1+145709, LSPM J0840+1457
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Bell et al. 2016 | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 40 54.33 (0.2) | 08 40 54.14 | 08 40 54.32 (0.4) | 08 40 54.33 | 08 40 54.04 (0.2) | 08 40 54.14 | ||||||
| Declination | 14 57 06.47 (0.08) | 14 57 08.98 | 14 57 06.59 (0.3) | 14 57 06.47 | 14 57 10.44 (0.08) | 14 57 08.98 | ||||||
| Spectral type | DA | DA | DA | DA | DA | |||||||
| Effective temperature | [K] | 10647.0 | 10570.0 | 10593.0 (251) | 10827.0 (70) | |||||||
| log(g) | [cgs] | 7.91 | 7.92 | 7.92 (0.05) | 8.12 (0.07) | |||||||
| Mass | [M☉] | 0.552 | 0.555 (0.04) | 0.67 (0.04) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.4588 | ||||||||||
| 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] | 5.02 (0.2) | 4.96 (0.3) | 5.02 | 5.02 (0.2) | |||||||
| Distance | [pc] | 199.24 (7) | 201.57 (14) | 199.24 | 199.24 (7) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 264.8245044 (0.2) | 264.7347715 (0.7) | 264.825 (0.2) | ||||||||
| Proper motion (declination) | [mas/yr] | -248.1040339 (0.2) | -248.3972571 (0.5) | -248.104 (0.2) | ||||||||
| Variability | VAR | |||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | 18.30 | |||||||||||
| R magnitude | 18.70 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 18.74 (0.02) | 18.74 (0.02) | 18.74 (0.02) | |||||||||
| g magnitude | 18.28 (0.007) | 18.28 (0.007) | 18.28 (0.02) | |||||||||
| r magnitude | 18.43 (0.009) | 18.43 (0.009) | 18.45 (0.01) | |||||||||
| i magnitude | 18.59 (0.01) | 18.59 (0.01) | 18.60 (0.02) | |||||||||
| z magnitude | 18.80 (0.04) | 18.80 (0.04) | 18.82 (0.04) | |||||||||
| G magnitude | 18.37 (0.01) | 18.40 | 18.37 | 18.37 (0.003) | ||||||||
| BP magnitude | 18.44 (0.01) | 18.40 | ||||||||||
| RP magnitude | 18.34 (0.02) | 18.34 | ||||||||||
| Pan g magnitude | 18.35 (0.006) | |||||||||||
| Pan r magnitude | 18.45 (0.004) | |||||||||||
| Pan i magnitude | 18.64 (0.008) | |||||||||||
| Pan z magnitude | 18.82 (0.03) | |||||||||||
| Pan y magnitude | 18.98 (0.04) | |||||||||||
| E(B-V) | 0.012 | |||||||||||
| Period #1 | [s] | 487.0 | ||||||||||
| Amplitude #1 | [mma] | 1.6 | ||||||||||
| Period #2 | [s] | 1095.0 | ||||||||||
| Amplitude #2 | [mma] | |||||||||||
* Constant surface field
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