Gaia DR2 4226663404595171968
All names: WDJ204844.71-014802.80, Gaia EDR3 4226663404595171968, Gaia DR2 4226663404595171968, Gaia DR3 4226663404595171968, WDJ204844.71-014802.79, SDSS J204844.69-014803.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 48 44.60 (0.07) | 20 48 44.61 | 20 48 44.60 | 20 48 44.71 (0.07) | 20 48 44.61 | ||||||
| Declination | -01 48 07.63 (0.04) | -01 48 07.48 | -01 48 07.63 | -01 48 02.79 (0.04) | -01 48 07.48 | ||||||
| Spectral type | DC | DC | D | ||||||||
| Effective temperature | [K] | 6458.0 (25) | 6952.0 | 6691.0 | 6188.0 (61) | ||||||
| log(g) | [cgs] | 8.13 (0.008) | 8.36 | 8.26 | 8.11 (0.01) | ||||||
| Mass | [M☉] | 0.655 (0.007) | 0.825 | 0.739 | 0.642 (0.01) | ||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 3.2870 | 3.0740 | ||||||||
| log(H/He) | -3.2 | ||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 23.95 (0.07) | 23.89 (0.1) | 23.95 | 23.95 (0.07) | 23.89 (0.1) | |||||
| Distance | [pc] | 41.75 (0.1) | 41.87 (0.2) | 41.75 | 41.75 (0.1) | 41.87 (0.2) | |||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -100.7574284 (0.1) | -100.6345468 (0.3) | -100.757 (0.1) | -100.6345468 | ||||||
| Proper motion (declination) | [mas/yr] | -302.3477765 (0.07) | -302.2542234 (0.1) | -302.348 (0.07) | -302.2542234 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 17.88 (0.01) | 17.88 (0.01) | |||||||||
| g magnitude | 17.34 (0.005) | 17.34 (0.005) | |||||||||
| r magnitude | 17.10 (0.005) | 17.10 (0.005) | |||||||||
| i magnitude | 17.04 (0.006) | 17.04 (0.006) | |||||||||
| z magnitude | 17.09 (0.01) | 17.09 (0.01) | |||||||||
| G magnitude | 17.09 (0.004) | 17.10 | 17.09 | 17.09 (0.003) | 17.10 | ||||||
| BP magnitude | 17.29 (0.004) | 17.30 | 17.30 | ||||||||
| RP magnitude | 16.75 (0.005) | 16.76 | 16.76 | ||||||||
| Pan g magnitude | 17.30 (0.003) | ||||||||||
| Pan r magnitude | 17.11 (0.004) | ||||||||||
| Pan i magnitude | 17.09 (0.002) | ||||||||||
| Pan z magnitude | 17.14 (0.005) | ||||||||||
| Pan y magnitude | 17.17 (0.008) | ||||||||||
| 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
