SDSS J164439.59+193553.3
All names: SDSS J164439.59+193553.4, GALEX J164439.6+193552, SDSS J164439.59+193553.3, Gaia EDR3 4563052248309610752, WD 1642+196, SDSS J164439.58+193553.4, Gaia DR2 4563052248309610752, Gaia DR3 4563052248309610752
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 44 39.58 (0.3) | 16 44 39.59 | 16 44 39.58 (0.4) | 16 44 39.59 (0.3) | 16 44 39.59 | 16 44 39.24 | 16 44 39.59 | |||||
| Declination | 19 35 53.44 (0.3) | 19 35 53.43 | 19 35 53.43 (0.4) | 19 35 53.37 (0.3) | 19 35 53.39 | 19 35 49.92 | 19 35 53.39 | |||||
| Spectral type | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 13926.0 | 17728.0 (848) | 17728.0 (873) | ||||||||
| log(g) | [cgs] | 7.42 | 7.92 (0.2) | 7.91 (0.2) | ||||||||
| Mass | [M☉] | 0.343 | 0.573 (0.09) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.1238 | ||||||||||
| 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] | 1.71 (0.4) | 1.47 (0.6) | 1.71 (0.4) | ||||||||
| Distance | [pc] | 585.10 (150) | 680.15 (272) | 585.10 (150) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -16.41307598 (0.4) | -16.6484239 (0.8) | -16.413 (0.4) | -6.5 | |||||||
| Proper motion (declination) | [mas/yr] | 4.093639091 (0.4) | 3.325641018 (1) | 4.094 (0.4) | 4.5 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 20.13 (0.04) | 20.13 (0.04) | 20.12 (0.05) | 20.12 | 20.11 (0.05) | |||||||
| g magnitude | 19.92 (0.01) | 19.92 (0.01) | 19.92 (0.02) | 19.92 | 19.92 (0.02) | |||||||
| r magnitude | 20.19 (0.02) | 20.19 (0.02) | 20.23 (0.02) | 20.22 | 20.23 (0.02) | |||||||
| i magnitude | 20.42 (0.04) | 20.42 (0.04) | 20.42 (0.03) | 20.42 | 20.43 (0.03) | |||||||
| z magnitude | 20.46 (0.1) | 20.46 (0.1) | 20.80 (0.2) | 20.80 | 20.82 (0.2) | |||||||
| G magnitude | 20.05 (0.04) | 20.13 | 20.05 (0.004) | |||||||||
| BP magnitude | 20.03 (0.04) | 19.98 | ||||||||||
| RP magnitude | 19.94 (0.07) | 20.03 | ||||||||||
| Pan g magnitude | 19.92 (0.01) | |||||||||||
| Pan r magnitude | 20.20 (0.02) | |||||||||||
| Pan i magnitude | 20.46 (0.02) | |||||||||||
| Pan z magnitude | 20.46 (0.04) | |||||||||||
| Pan y magnitude | ||||||||||||
| E(B-V) | 0.051 | |||||||||||
* 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
