WD 0744+247.1
All names: J0747+2438, LSPM J0747+2438E, Gaia DR3 867739936760402560, Gaia DR2 867739936760402560, WD 0744+247.1, Gaia EDR3 867739936760402560, SDSS J074723.50+243823.7, USNO-B1.0 1146-00149723, WDJ074723.48+243823.89
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 47 23.64 (0.1) | 07 47 23.64 (0.1) | 07 47 23.64 | 07 47 23.48 (0.1) | 07 47 23.64 | 07 47 23.26 | |||||||
| Declination | 24 38 22.77 (0.09) | 24 38 22.81 (0.1) | 24 38 22.77 | 24 38 23.89 (0.09) | 24 38 22.81 | 24 38 21.48 | |||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA8.8 | ||||||
| Effective temperature | [K] | 5641.0 (22) | 5645.0 (22) | 5641.0 (22) | 5708.0 | 5794.0 (70) | |||||||
| log(g) | [cgs] | 7.98 (0.01) | 7.97 (0.01) | 7.97 (0.01) | 8.01 | 8.06 (0.03) | |||||||
| Mass | [M☉] | 0.575 (0.01) | 0.568 (0.01) | 0.57 (0.01) | 0.59 | 0.624 (0.02) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 2.6300 | 2.6850 | ||||||||||
| 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] | 18.41 (0.1) | 18.34 (0.1) | 18.34 (0.2) | 18.41 | 18.41 (0.1) | 18.34 (0.2) | ||||||
| Distance | [pc] | 54.32 (0.4) | 54.53 (0.4) | 54.54 (0.5) | 54.32 | 54.32 (0.4) | 54.54 (0.5) | ||||||
| Composition | H | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 138.0509613 (0.1) | 138.0650247 (0.3) | 138.051 (0.1) | 138.0650247 | ||||||||
| Proper motion (declination) | [mas/yr] | -69.96802141 (0.1) | -70.01383058 (0.2) | -69.968 (0.1) | -70.01383058 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | yes | ||||||||||||
| B magnitude | 18.40 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 18.20 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.78 (0.04) | 16.78 (0.04) | |||||||||||
| H magnitude | 16.58 (0.04) | 16.58 (0.04) | |||||||||||
| K magnitude | 16.53 (0.04) | 16.53 (0.04) | |||||||||||
| u magnitude | 19.47 (0.03) | 19.48 (0.03) | 19.39 (0.03) | 19.34 | |||||||||
| g magnitude | 18.36 (0.007) | 18.35 (0.007) | 18.36 | ||||||||||
| r magnitude | 17.91 (0.007) | 17.92 (0.007) | 17.92 | ||||||||||
| i magnitude | 17.74 (0.007) | 17.73 (0.007) | 17.75 | ||||||||||
| z magnitude | 17.69 (0.01) | 17.69 (0.02) | 17.72 | ||||||||||
| G magnitude | 17.94 (0.02) | 17.96 | 17.94 | 17.94 (0.003) | 17.96 | ||||||||
| BP magnitude | 18.28 (0.02) | 18.26 | 18.26 | ||||||||||
| RP magnitude | 17.43 (0.02) | 17.40 | 17.40 | ||||||||||
| Pan g magnitude | 18.32 (0.005) | 18.32 (0.006) | |||||||||||
| Pan r magnitude | 17.91 (0.005) | 17.91 (0.005) | |||||||||||
| Pan i magnitude | 17.76 (0.003) | 17.76 (0.004) | |||||||||||
| Pan z magnitude | 17.73 (0.008) | 17.73 (0.009) | |||||||||||
| Pan y magnitude | 17.73 (0.01) | 17.73 (0.01) | |||||||||||
| E(B-V) | 0.001 | ||||||||||||
* 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
