WD 0814+250
All names: USNO-B1.0 1148-00155789, LSPM J0817+2451, SDSS J081745.32+245105.5, WD 0814+250, Gaia DR2 679311750025779584, WDJ081745.31+245106.19, Gaia DR3 679311750025779584, SDSS J081745.33+245105.6, Gaia EDR3 679311750025779584
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 17 45.39 (0.2) | 08 17 45.39 (0.2) | 08 17 45.39 | 08 17 45.31 (0.2) | 08 17 45.39 | 08 17 45.46 | |||||
| Declination | 24 51 02.91 (0.2) | 24 51 03.01 (0.2) | 24 51 02.91 | 24 51 06.19 (0.2) | 24 51 03.01 | 24 51 02.52 | |||||
| Spectral type | D | D | DA | D | ___9.1 | ||||||
| Effective temperature | [K] | 5506.0 | 5222.0 | 5616.0 (144) | |||||||
| log(g) | [cgs] | 8.23 | 8.05 | 8.25 (0.06) | |||||||
| Mass | [M☉] | 0.728 | 0.602 | 0.744 (0.05) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 5.3600 | 5.3250 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 14.03 (0.2) | 14.29 (0.3) | 14.03 | 14.03 (0.2) | 14.29 (0.3) | |||||
| Distance | [pc] | 71.29 (1) | 70.00 (1) | 71.29 | 71.29 (1) | 70.00 (1) | |||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 72.81917118 (0.3) | 73.93994163 (0.5) | 72.819 (0.3) | 73.93994163 | ||||||
| Proper motion (declination) | [mas/yr] | -205.1087569 (0.2) | -204.9765454 (0.3) | -205.109 (0.2) | -204.9765454 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 20.00 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 19.00 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.93 (0.04) | ||||||||||
| H magnitude | 17.76 (0.04) | ||||||||||
| K magnitude | 17.71 (0.09) | ||||||||||
| u magnitude | 20.70 (0.06) | 20.70 (0.06) | 20.59 | ||||||||
| g magnitude | 19.45 (0.01) | 19.45 (0.01) | 19.44 | ||||||||
| r magnitude | 18.91 (0.01) | 18.91 (0.01) | 18.91 | ||||||||
| i magnitude | 18.72 (0.01) | 18.72 (0.01) | 18.74 | ||||||||
| z magnitude | 18.64 (0.03) | 18.64 (0.03) | 18.62 | ||||||||
| G magnitude | 18.94 (0.04) | 18.98 | 18.94 | 18.94 (0.004) | 18.98 | ||||||
| BP magnitude | 19.33 (0.04) | 19.31 | 19.31 | ||||||||
| RP magnitude | 18.42 (0.03) | 18.35 | 18.35 | ||||||||
| Pan g magnitude | 19.37 (0.01) | ||||||||||
| Pan r magnitude | 18.94 (0.005) | ||||||||||
| Pan i magnitude | 18.74 (0.006) | ||||||||||
| Pan z magnitude | 18.70 (0.01) | ||||||||||
| Pan y magnitude | 18.68 (0.03) | ||||||||||
| E(B-V) | 0.002 | ||||||||||
* 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
