SDSS J172715.83+442115.4
All names: SDSS J172715.83+442115.4, Gaia EDR3 1360737860911180288, Gaia DR3 1360737860911180288, SDSS J172715.83+442115.3, Gaia DR2 1360737860911180288
| 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 27 15.81 (0.2) | 17 27 15.83 | 17 27 15.81 (0.3) | 17 27 15.84 (0.2) | 17 27 15.83 | ||||||
| Declination | 44 21 15.08 (0.3) | 44 21 15.40 | 44 21 15.09 (0.4) | 44 21 15.58 (0.3) | 44 21 15.40 | ||||||
| Spectral type | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 7970.0 | 7749.0 | 10088.0 (20) | |||||||
| log(g) | [cgs] | 8.07 | 7.99 | 9.40 (0.6) | |||||||
| Mass | [M☉] | 0.635 | 0.569 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 1.1930 | 1.1910 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.50 (0.3) | 4.64 (0.4) | 4.50 (0.3) | |||||||
| Distance | [pc] | 222.42 (13) | 215.30 (17) | 222.41 (13) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -19.19875375 (0.3) | -19.30855599 (0.7) | -19.199 (0.3) | |||||||
| Proper motion (declination) | [mas/yr] | -31.40783351 (0.3) | -30.59540983 (0.7) | -31.408 (0.3) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.22 (0.05) | 20.22 (0.05) | 20.24 (0.05) | ||||||||
| g magnitude | 19.81 (0.01) | 19.81 (0.01) | 19.83 (0.02) | ||||||||
| r magnitude | 19.77 (0.02) | 19.77 (0.02) | 19.83 (0.02) | ||||||||
| i magnitude | 19.74 (0.02) | 19.74 (0.02) | 19.79 (0.02) | ||||||||
| z magnitude | 19.65 (0.08) | 19.65 (0.08) | 19.69 (0.08) | ||||||||
| G magnitude | 19.74 (0.06) | 19.79 | 19.74 (0.005) | ||||||||
| BP magnitude | 19.86 (0.06) | 19.94 | |||||||||
| RP magnitude | 19.41 (0.05) | 19.51 | |||||||||
| Pan g magnitude | 19.83 (0.01) | ||||||||||
| Pan r magnitude | 19.77 (0.009) | ||||||||||
| Pan i magnitude | 19.79 (0.01) | ||||||||||
| Pan z magnitude | 19.90 (0.02) | ||||||||||
| Pan y magnitude | 19.85 (0.1) | ||||||||||
| 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
