All names: WISEA J234036.60-370844.9, 2MASS J23403666-3708450, Gaia DR3 6538863343364422528, TIC 224276047, UCAC4 265-196990, WDJ234036.64-370844.72, WDJ234036.64-370844.71, EC 23379-3725, Gaia DR2 6538863343364422528, WISE J234036.60-370844.5, Gaia EDR3 6538863343364422528
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|
| Right ascension | 23 40 36.59 (0.05) | 23 40 36.59 | 23 40 36.59 | 23 40 36.64 (0.05) | 23 40 36.59 | ||
| Declination | -37 08 45.11 (0.04) | -37 08 45.10 | -37 08 45.11 | -37 08 44.72 (0.04) | -37 08 45.10 | ||
| Spectral type | DA | DA | |||||
| Effective temperature | [K] | 15424.0 (272) | |||||
| log(g) | [cgs] | 8.04 (0.02) | |||||
| Mass | [M☉] | 0.638 (0.01) | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 10.51 (0.06) | 10.44 (0.07) | 10.51 | 10.51 (0.06) | 10.44 (0.07) | |
| Distance | [pc] | 95.15 (0.5) | 95.83 (0.6) | 95.15 | 95.15 (0.5) | 95.83 (0.6) | |
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -35.15488639 (0.05) | -35.11914695 (0.1) | -35.155 (0.05) | -35.11914695 | ||
| Proper motion (declination) | [mas/yr] | -24.74999436 (0.04) | -24.69447418 (0.09) | -24.75 (0.04) | -24.69447418 | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 16.11 (0.07) | ||||||
| V magnitude | 16.17 (0.01) | ||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 16.37 (0.1) | ||||||
| H magnitude | 16.04 (0.2) | ||||||
| K magnitude | 15.66 (0.2) | ||||||
| u magnitude | |||||||
| g magnitude | |||||||
| r magnitude | |||||||
| i magnitude | |||||||
| z magnitude | |||||||
| G magnitude | 16.22 (0.004) | 16.24 | 16.22 | 16.22 (0.003) | 16.24 | ||
| BP magnitude | 16.19 (0.004) | 16.18 | 16.18 | ||||
| RP magnitude | 16.33 (0.006) | 16.33 | 16.33 | ||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.002 | ||||||
* 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.