SDSS J084742.47+523751.8
All names: Gaia DR3 1029287366298402944, GALEX J084742.4+523753, SDSS J084742.46+523751.7, Gaia EDR3 1029287366298402944, SDSS J084742.47+523751.8, SDSS J084742.47+523751.80, Gaia DR2 1029287366298402944
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 47 42.43 (0.7) | 08 47 42.47 | 08 47 42.44 (1) | 08 47 42.47 (0.7) | |||||||
| Declination | 52 37 51.53 (0.5) | 52 37 51.80 | 52 37 51.53 (0.6) | 52 37 51.79 (0.5) | |||||||
| Spectral type | DC: | DC: | DC: | DC | DC | ||||||
| Effective temperature | [K] | 8794.0 | 8661.0 | 9918.0 (302) | |||||||
| log(g) | [cgs] | 8.05 | 7.99 | 8.00 (0) | |||||||
| Mass | [M☉] | 0.629 | 0.571 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.9102 | 0.8936 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.76 (1) | 2.87 (1) | 3.76 (1) | |||||||
| Distance | [pc] | 265.95 (70) | 348.47 (148) | 265.94 (70) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -19.475706 (0.8) | -16.97372624 (2) | -19.476 (0.8) | |||||||
| Proper motion (declination) | [mas/yr] | -16.7147515 (0.8) | -17.13887468 (1) | -16.715 (0.8) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.62 (0.06) | 20.63 (0.06) | 20.63 (0.06) | ||||||||
| g magnitude | 20.43 (0.02) | 20.44 (0.02) | 20.43 (0.02) | ||||||||
| r magnitude | 20.46 (0.03) | 20.49 (0.03) | 20.46 (0.03) | ||||||||
| i magnitude | 20.54 (0.05) | 20.57 (0.05) | 20.57 (0.05) | ||||||||
| z magnitude | 20.59 (0.2) | 20.63 (0.2) | 20.63 (0.2) | ||||||||
| G magnitude | 20.39 (0.05) | 20.46 | 20.39 (0.006) | ||||||||
| BP magnitude | 20.55 (0.05) | 20.39 | |||||||||
| RP magnitude | 20.23 (0.07) | 20.36 | |||||||||
| Pan g magnitude | 20.47 (0.04) | ||||||||||
| Pan r magnitude | 20.52 (0.04) | ||||||||||
| Pan i magnitude | 20.54 (0.03) | ||||||||||
| Pan z magnitude | 20.64 (0.06) | ||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.014 | ||||||||||
* 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
