Gaia DR2 4240366136980012416
All names: WDJ195448.75+011518.78, Gaia DR2 4240366136980012416, SDSS J195448.73+011517.9, SDSS J195448.73+011517.8, Gaia DR3 4240366136980012416, J1954+0115, Gaia EDR3 4240366136980012416
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 19 54 48.69 (0.2) | 19 54 48.69 | 19 54 48.69 | 19 54 48.75 (0.2) | 19 54 48.69 | ||||||||
| Declination | 01 15 15.63 (0.2) | 01 15 15.73 | 01 15 15.63 | 01 15 18.78 (0.2) | 01 15 15.73 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||||
| Effective temperature | [K] | 6232.0 (65) | 6240.0 (64) | 6232.0 (65) | 6305.0 | 6069.0 | 6371.0 (183) | ||||||
| log(g) | [cgs] | 8.30 (0.03) | 8.30 (0.03) | 8.30 (0.03) | 8.32 | 8.20 | 8.33 (0.06) | ||||||
| Mass | [M☉] | 0.78 (0.03) | 0.782 (0.03) | 0.78 (0.03) | 0.797 | 0.701 | 0.799 (0.05) | ||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 4.1400 | 3.9510 | 3.9520 | |||||||||
| 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] | 11.30 (0.2) | 11.30 (0.3) | 11.30 (0.3) | 11.30 | 11.30 (0.2) | 11.30 (0.3) | ||||||
| Distance | [pc] | 88.48 (2) | 88.50 (2) | 88.52 (2) | 88.48 | 88.48 (2) | 88.52 (2) | ||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -51.16932563 (0.3) | -51.00727801 (0.5) | -51.169 (0.3) | -51.00727801 | ||||||||
| Proper motion (declination) | [mas/yr] | -196.967964 (0.2) | -197.0243305 (0.4) | -196.968 (0.2) | -197.0243305 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 18.15 (0.06) | ||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 20.18 (0.07) | 20.19 (0.07) | 20.19 (0.07) | ||||||||||
| g magnitude | 19.36 (0.02) | 19.36 (0.02) | |||||||||||
| r magnitude | 19.13 (0.01) | 19.13 (0.01) | |||||||||||
| i magnitude | 18.85 (0.02) | 18.85 (0.02) | |||||||||||
| z magnitude | 19.08 (0.06) | 19.08 (0.06) | |||||||||||
| G magnitude | 19.02 (0.03) | 19.04 | 19.02 | 19.02 (0.004) | 19.04 | ||||||||
| BP magnitude | 19.30 (0.03) | 19.38 | 19.38 | ||||||||||
| RP magnitude | 18.57 (0.03) | 18.60 | 18.60 | ||||||||||
| Pan g magnitude | 19.30 (0.009) | 19.30 (0.01) | |||||||||||
| Pan r magnitude | 19.05 (0.007) | 19.05 (0.005) | |||||||||||
| Pan i magnitude | 18.94 (0.01) | 18.94 (0.01) | |||||||||||
| Pan z magnitude | 18.96 (0.02) | 18.96 (0.02) | |||||||||||
| Pan y magnitude | 18.95 (0.04) | 18.95 (0.04) | |||||||||||
| E(B-V) | 0.012 | ||||||||||||
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Normalize by mean flux
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
