SDSS J155512.50+074554.4
All names: GALEX J155512.5+074554, Gaia DR2 4454144045328121856, Gaia EDR3 4454144045328121856, SDSS J155512.49+074554.2, SDSS J155512.50+074554.2, SDSS J155512.50+074554.22, Gaia DR3 4454144045328121856, SDSS J155512.50+074554.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 55 12.49 (0.1) | 15 55 12.50 | 15 55 12.49 (0.2) | 15 55 12.49 | 15 55 12.50 (0.1) | ||||||
| Declination | 07 45 54.07 (0.1) | 07 45 54.40 | 07 45 54.08 (0.1) | 07 45 54.07 | 07 45 54.46 (0.1) | ||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 16447.0 | 21117.0 (203) | 18948.0 (1344) | |||||||
| log(g) | [cgs] | 7.71 | 7.85 (0.03) | 7.69 (0.09) | |||||||
| Mass | [M☉] | 0.465 | 0.552 (0.01) | 0.465 (0.06) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.0878 | |||||||||
| 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] | 2.87 (0.2) | 3.15 (0.2) | 2.87 | 2.87 (0.2) | ||||||
| Distance | [pc] | 348.04 (19) | 317.94 (24) | 348.04 | 348.03 (19) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.214560171 (0.1) | -6.58093263 (0.4) | -6.215 (0.1) | |||||||
| Proper motion (declination) | [mas/yr] | -24.25447919 (0.1) | -23.93541466 (0.3) | -24.254 (0.1) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 18.73 (0.05) | ||||||||||
| H magnitude | 18.60 (0.1) | ||||||||||
| K magnitude | 18.70 (0.2) | ||||||||||
| u magnitude | 18.14 (0.01) | 18.14 (0.02) | 18.14 (0.01) | ||||||||
| g magnitude | 18.02 (0.006) | 18.03 (0.01) | 18.02 (0.006) | ||||||||
| r magnitude | 18.39 (0.008) | 18.39 (0.02) | 18.39 (0.008) | ||||||||
| i magnitude | 18.67 (0.01) | 18.67 (0.02) | 18.68 (0.01) | ||||||||
| z magnitude | 18.99 (0.04) | 19.01 (0.04) | 18.99 (0.04) | ||||||||
| G magnitude | 18.22 (0.01) | 18.24 | 18.22 | 18.22 (0.003) | |||||||
| BP magnitude | 18.19 (0.01) | 18.14 | |||||||||
| RP magnitude | 18.37 (0.02) | 18.38 | |||||||||
| Pan g magnitude | 18.08 (0.005) | ||||||||||
| Pan r magnitude | 18.40 (0.006) | ||||||||||
| Pan i magnitude | 18.72 (0.008) | ||||||||||
| Pan z magnitude | 18.93 (0.01) | ||||||||||
| Pan y magnitude | 19.08 (0.02) | ||||||||||
| E(B-V) | 0.036 | ||||||||||
* Constant surface field
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