All names: Gaia DR2 3663639779599974784, WDJ133941.33+015749.19, 2QZ J133941.3+015749, GALEX J133941.3+015749, Gaia DR3 3663639779599974784, USNO-A2.0 0900-07449710
| Parameter | Unit | Kilic et al. 2025b | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|
| Right ascension | 13 39 41.31 | 13 39 41.33 (0.3) | ||
| Declination | 01 57 48.42 | 01 57 49.21 (0.2) | ||
| Spectral type | DQAH | DB: | DB | |
| Effective temperature | [K] | 14309.0 (433) | 14373.0 (1281) | |
| log(g) | [cgs] | 8.64 (0.1) | 8.62 (0.1) | |
| Mass | [M☉] | 0.998 (0.08) | 0.98 (0.1) | |
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 4.02 | 4.02 (0.4) | |
| Distance | [pc] | 248.92 | 248.92 (23) | |
| Composition | C | |||
| Proper motion (right ascension) | [mas/yr] | -25.603 (0.4) | ||
| Proper motion (declination) | [mas/yr] | -49.133 (0.3) | ||
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 18.50 (0.3) | |||
| V magnitude | ||||
| R magnitude | 19.20 (0.3) | |||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 19.38 (0.004) | 19.38 | 19.38 (0.004) | |
| BP magnitude | 19.35 (0.03) | |||
| RP magnitude | 19.53 (0.05) | |||
| Pan g magnitude | 19.28 (0.009) | |||
| Pan r magnitude | 19.54 (0.01) | |||
| Pan i magnitude | 19.83 (0.01) | |||
| Pan z magnitude | 20.05 (0.02) | |||
| Pan y magnitude | 19.98 (0.07) | |||
| 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.