SDSS J155656.98+034645.9
All names: SDSS J155656.98+034645.8, GALEX J155656.9+034645, SDSS J155656.98+034645.9, Gaia DR3 4425218054766493568, Gaia EDR3 4425218054766493568, Gaia DR2 4425218054766493568
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 56 56.96 (0.2) | 15 56 56.98 | 15 56 56.96 (0.3) | 15 56 56.96 | 15 56 56.98 (0.2) | 15 56 56.98 | |||||
| Declination | 03 46 45.63 (0.2) | 03 46 45.87 | 03 46 45.64 (0.2) | 03 46 45.63 | 03 46 45.92 (0.2) | 03 46 45.89 | |||||
| Spectral type | DA:DC: | DC: | DA | DA:DC: | DA | ||||||
| Effective temperature | [K] | 8180.0 | 8217.0 (347) | 7544.0 (76) | |||||||
| log(g) | [cgs] | 7.11 | 7.03 (0.1) | 9.69 (0.2) | |||||||
| Mass | [M☉] | 0.23 | 0.194 (0.04) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.4416 | |||||||||
| 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] | 3.53 (0.2) | 3.27 (0.4) | 3.53 | 3.53 (0.2) | ||||||
| Distance | [pc] | 283.55 (19) | 305.83 (33) | 283.55 | 283.55 (19) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -15.79352893 (0.3) | -15.99267222 (0.7) | -15.794 (0.3) | |||||||
| Proper motion (declination) | [mas/yr] | -17.53889454 (0.2) | -18.42138118 (0.6) | -17.539 (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 | 19.54 (0.03) | 19.54 (0.03) | 19.55 (0.04) | ||||||||
| g magnitude | 19.19 (0.01) | 19.19 (0.01) | 19.21 (0.02) | ||||||||
| r magnitude | 19.12 (0.01) | 19.12 (0.01) | 19.13 (0.02) | ||||||||
| i magnitude | 19.15 (0.02) | 19.15 (0.01) | 19.15 (0.02) | ||||||||
| z magnitude | 19.28 (0.05) | 19.28 (0.05) | 19.29 (0.05) | ||||||||
| G magnitude | 19.09 (0.03) | 19.13 | 19.09 | 19.09 (0.004) | |||||||
| BP magnitude | 19.26 (0.03) | 19.24 | |||||||||
| RP magnitude | 18.90 (0.03) | 18.90 | |||||||||
| Pan g magnitude | 19.18 (0.008) | ||||||||||
| Pan r magnitude | 19.14 (0.006) | ||||||||||
| Pan i magnitude | 19.19 (0.005) | ||||||||||
| Pan z magnitude | 19.29 (0.02) | ||||||||||
| Pan y magnitude | 19.40 (0.06) | ||||||||||
| E(B-V) | 0.050 | ||||||||||
* Constant surface field
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