All names: SDSS J230911.23+031533.00, Gaia DR2 2658797786602355712, Gaia EDR3 2658797786602355712, Gaia DR3 2658797786602355712, SDSS J230911.23+031533.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 23 09 11.23 (0.5) | 23 09 11.23 | 23 09 11.22 (0.5) | |||
| Declination | 03 15 33.09 (0.4) | 03 15 33.06 | 03 15 33.14 (0.4) | |||
| Spectral type | sdA | sdA | ||||
| Effective temperature | [K] | 8014.0 (70) | ||||
| log(g) | [cgs] | 6.20 (0.2) | ||||
| Mass | [M☉] | 0.16286 (0.005) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | -1.34 (0.6) | ||||
| Distance | [pc] | |||||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 2.233667482 (0.6) | 2.234 (0.6) | |||
| Proper motion (declination) | [mas/yr] | -2.809555435 (0.5) | -2.81 (0.5) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 20.74 (0.07) | 20.75 (0.07) | 20.75 (0.07) | |||
| g magnitude | 19.92 (0.01) | 19.93 (0.02) | 19.93 (0.02) | |||
| r magnitude | 19.82 (0.02) | 19.85 (0.02) | 19.85 (0.02) | |||
| i magnitude | 19.78 (0.02) | 19.80 (0.03) | 19.80 (0.03) | |||
| z magnitude | 19.84 (0.08) | 19.84 (0.08) | 19.84 (0.08) | |||
| G magnitude | 19.79 (0.09) | 19.79 (0.006) | ||||
| BP magnitude | 19.95 (0.09) | |||||
| RP magnitude | 19.43 (0.08) | |||||
| Pan g magnitude | 19.93 (0.01) | |||||
| Pan r magnitude | 19.86 (0.01) | |||||
| Pan i magnitude | 19.85 (0.005) | |||||
| Pan z magnitude | 19.86 (0.04) | |||||
| Pan y magnitude | 19.86 (0.06) | |||||
| E(B-V) | ||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.