All names: Gaia EDR3 3854875363117164416, Gaia DR2 3854875363117164416, SDSS J094042.27+081432.4, GALEX J094042.2+081432, Gaia DR3 3854875363117164416
| Parameter | Unit | Gaia EDR3 | Simbad |
|---|---|---|---|
| Right ascension | 09 40 42.27 (0.6) | 09 40 42.27 (0.6) | |
| Declination | 08 14 32.29 (0.7) | 08 14 32.53 (0.7) | |
| Spectral type | DC | ||
| Effective temperature | [K] | ||
| log(g) | [cgs] | ||
| Mass | [M☉] | ||
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 1.55 (0.6) | 1.55 (0.6) |
| Distance | [pc] | 644.91 (242) | 644.91 (242) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 1.344 (0.7) | 1.344 (0.7) |
| Proper motion (declination) | [mas/yr] | -15.006 (0.7) | -15.006 (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 | 20.00 (0.04) | ||
| g magnitude | 19.93 (0.02) | ||
| r magnitude | 20.06 (0.02) | ||
| i magnitude | 20.20 (0.04) | ||
| z magnitude | 20.39 (0.1) | ||
| G magnitude | 19.98 (0.005) | 19.98 (0.005) | |
| BP magnitude | 20.06 (0.06) | ||
| RP magnitude | 19.90 (0.08) | ||
| 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.