SDSS J082022.18+342019.8
All names: Gaia DR2 904099102663715328, Gaia DR3 904099102663715328, WD 0817+344, Gaia EDR3 904099102663715328, SDSS J082022.18+342019.8, SDSS J082022.18+342019.9
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 20 22.18 (1) | 08 20 22.18 | 08 20 22.18 (1) | 08 20 22.19 (1) | 08 20 22.19 | 08 20 22.37 | 08 20 22.18 | |||
| Declination | 34 20 19.69 (1) | 34 20 19.94 | 34 20 19.69 (1) | 34 20 19.85 (1) | 34 20 19.89 | 34 20 17.52 | 34 20 19.90 | |||
| Spectral type | DA | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 16547.0 | 18077.0 (642) | 18771.0 (636) | ||||||
| log(g) | [cgs] | 9.56 | 7.88 (0.1) | 7.94 (0.1) | ||||||
| Mass | [M☉] | 1.391 | 0.589 (0.08) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 1.2240 | ||||||||
| 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] | -4.16 (1) | -6.37 (2) | |||||||
| Distance | [pc] | |||||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -7.039161733 (1) | -11.9368137 (3) | -7.039 (1) | -8.1 | |||||
| Proper motion (declination) | [mas/yr] | -9.962105606 (1) | -8.156329297 (2) | -9.962 (1) | -21.1 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.20 (0.04) | 20.20 (0.05) | 20.20 (0.05) | 20.19 | 20.20 (0.05) | |||||
| g magnitude | 19.93 (0.02) | 19.94 (0.01) | 19.95 (0.02) | 19.94 | 19.94 (0.02) | |||||
| r magnitude | 20.21 (0.02) | 20.22 (0.02) | 20.23 (0.02) | 20.22 | 20.22 (0.02) | |||||
| i magnitude | 20.46 (0.04) | 20.48 (0.04) | 20.48 (0.04) | 20.47 | 20.47 (0.04) | |||||
| z magnitude | 20.65 (0.1) | 20.66 (0.1) | 20.67 (0.1) | 20.66 | 20.66 (0.1) | |||||
| G magnitude | 20.38 (0.05) | 20.32 | 20.38 (0.01) | |||||||
| BP magnitude | 20.06 (0.05) | 20.04 | ||||||||
| RP magnitude | 20.34 (0.2) | 20.29 | ||||||||
| Pan g magnitude | 19.98 (0.009) | |||||||||
| Pan r magnitude | 20.23 (0.02) | |||||||||
| Pan i magnitude | 20.55 (0.04) | |||||||||
| Pan z magnitude | 20.67 (0.04) | |||||||||
| Pan y magnitude | 19.87 (0.2) | |||||||||
| E(B-V) | ||||||||||
* 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
