SDSS J081910.87+040541.3
All names: LAMOST J081910.89+040541.3, Gaia DR3 3092924490947386752, SDSS J081910.87+040541.3, Gaia EDR3 3092924490947386752, SDSS J081910.88+040541.4, SDSS J081910.87+040541.4, Gaia DR2 3092924490947386752, WD 0816+042, GALEX J081910.8+040541
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Guo et al. 2015 | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 19 10.86 (0.2) | 08 19 10.87 | 08 19 10.86 (0.3) | 08 19 10.88 (0.2) | 08 19 10.87 | 08 19 10.75 | 08 19 10.88 | |||||||
| Declination | 04 05 41.45 (0.2) | 04 05 41.34 | 04 05 41.45 (0.2) | 04 05 41.39 (0.2) | 04 05 41.39 | 04 05 38.76 | 04 05 41.41 | |||||||
| Spectral type | DA | DA+M | DA | DA+M | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 15006.0 | 18760.0 (430) | 17885.0 (248) | 18097.0 (273) | |||||||||
| log(g) | [cgs] | 7.65 | 7.82 (0.07) | 7.76 (0.05) | 7.77 (0.06) | |||||||||
| Mass | [M☉] | 0.434 | 0.52 (0.04) | 0.509 (0.03) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.1140 | 0.0676 | |||||||||||
| 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] | 2.50 (0.3) | 2.70 (0.4) | 2.50 (0.3) | ||||||||||
| Distance | [pc] | 400.74 (53) | 370.53 (52) | 400.74 (53) | ||||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -13.81146431 (0.3) | -14.12356835 (0.7) | -13.811 (0.3) | 0.4 | |||||||||
| Proper motion (declination) | [mas/yr] | 3.301460458 (0.2) | 3.139231471 (0.4) | 3.301 (0.2) | 4.8 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 19.17 (0.1) | |||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.65 (0.02) | 18.66 (0.02) | 18.68 (0.03) | 18.68 | 18.68 (0.03) | |||||||||
| g magnitude | 18.40 (0.007) | 18.40 (0.007) | 18.45 (0.02) | 18.44 | 18.44 (0.02) | |||||||||
| r magnitude | 18.83 (0.01) | 18.83 (0.01) | 18.84 (0.02) | 18.84 | 18.83 (0.02) | |||||||||
| i magnitude | 18.96 (0.01) | 18.96 (0.01) | 19.11 (0.02) | 19.10 | 19.09 (0.02) | |||||||||
| z magnitude | 19.32 (0.08) | 19.32 (0.08) | 19.46 (0.09) | 19.45 | 19.45 (0.09) | |||||||||
| G magnitude | 18.66 (0.03) | 18.69 | 18.66 (0.004) | |||||||||||
| BP magnitude | 18.58 (0.03) | 18.54 | ||||||||||||
| RP magnitude | 18.80 (0.05) | 18.80 | ||||||||||||
| Pan g magnitude | 18.51 (0.006) | |||||||||||||
| Pan r magnitude | 18.81 (0.008) | |||||||||||||
| Pan i magnitude | 19.09 (0.01) | |||||||||||||
| Pan z magnitude | 19.34 (0.02) | |||||||||||||
| Pan y magnitude | 19.45 (0.02) | |||||||||||||
| E(B-V) | 0.020 | |||||||||||||
* 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
