SDSS J171819.36+270325.8
All names: Gaia DR3 4574266858893513472, Gaia EDR3 4574266858893513472, SDSS J171819.36+270325.8, Gaia DR2 4574266858893513472, SDSS J171819.36+270325.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 18 19.34 (0.4) | 17 18 19.37 | 17 18 19.34 (0.5) | 17 18 19.37 (0.4) | 17 18 19.36 | ||||||
| Declination | 27 03 25.96 (0.5) | 27 03 25.72 | 27 03 25.96 (0.7) | 27 03 25.70 (0.5) | 27 03 25.78 | ||||||
| Spectral type | DC: | DC: | DC | DC: | DC | ||||||
| Effective temperature | [K] | 8372.0 | 8219.0 | 10151.0 (86) | |||||||
| log(g) | [cgs] | 7.85 | 7.77 | 8.35 (1) | |||||||
| Mass | [M☉] | 0.509 | 0.452 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.7800 | 0.7782 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.77 (0.6) | 2.58 (0.6) | 2.77 (0.6) | |||||||
| Distance | [pc] | 361.33 (72) | 388.29 (98) | 361.32 (72) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -28.46536552 (0.6) | -29.17714399 (1) | -28.465 (0.6) | |||||||
| Proper motion (declination) | [mas/yr] | 16.62378831 (0.7) | 15.48484684 (1) | 16.624 (0.7) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 21.00 (0.08) | 21.00 (0.08) | 20.94 (0.07) | ||||||||
| g magnitude | 20.61 (0.03) | 20.61 (0.03) | 20.66 (0.03) | ||||||||
| r magnitude | 20.55 (0.03) | 20.55 (0.03) | 20.60 (0.03) | ||||||||
| i magnitude | 20.65 (0.05) | 20.65 (0.05) | 20.63 (0.04) | ||||||||
| z magnitude | 20.73 (0.2) | 20.73 (0.2) | 20.57 (0.2) | ||||||||
| G magnitude | 20.54 (0.1) | 20.60 | 20.54 (0.007) | ||||||||
| BP magnitude | 20.48 (0.1) | 20.47 | |||||||||
| RP magnitude | 20.20 (0.08) | 20.40 | |||||||||
| Pan g magnitude | 20.62 (0.01) | ||||||||||
| Pan r magnitude | 20.60 (0.02) | ||||||||||
| Pan i magnitude | 20.60 (0.03) | ||||||||||
| Pan z magnitude | 20.68 (0.03) | ||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.026 | ||||||||||
* 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
