All names: GALEX J013906.0+181857, Gaia EDR3 94918163061634944, SDSS J013906.02+181857.18, Gaia DR2 94918163061634944, SDSS J013906.02+181857.1, Gaia DR3 94918163061634944
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 01 39 06.02 (2) | 01 39 06.02 | 01 39 06.02 (2) | 01 39 06.02 (2) | ||
| Declination | 18 18 57.15 (2) | 18 18 57.18 | 18 18 57.16 (2) | 18 18 57.15 (2) | ||
| Spectral type | DA | DA | ||||
| Effective temperature | [K] | 11885.0 (1000) | ||||
| log(g) | [cgs] | 7.74 (0.5) | ||||
| Mass | [M☉] | 0.465 (0.2) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | |||||
| Distance | [pc] | |||||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | |||||
| Proper motion (declination) | [mas/yr] | |||||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 21.32 (0.1) | 21.20 (0.1) | 21.20 (0.1) | |||
| g magnitude | 20.93 (0.04) | 20.99 (0.04) | 20.99 (0.04) | |||
| r magnitude | 21.17 (0.06) | 21.22 (0.06) | 21.22 (0.06) | |||
| i magnitude | 21.56 (0.09) | 21.62 (0.1) | 21.62 (0.1) | |||
| z magnitude | 21.35 (0.2) | 21.41 (0.2) | 21.41 (0.2) | |||
| G magnitude | 21.02 (0.1) | 21.12 | 21.02 (0.02) | |||
| BP magnitude | 20.55 (0.1) | |||||
| RP magnitude | 20.59 (0.1) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| 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.