All names: 2MASS J19492589-4405121, TIC 79956635, WISEA J194926.00-440512.5, Gaia DR3 6685137182005209216, WDJ194925.91-440512.18, UCAC4 230-183848, DENIS J194925.8-440512, Gaia EDR3 6685137182005209216, WISE J194925.95-440512.2, GALEX J194926.0-440513, Gaia DR2 6685137182005209216
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|
| Right ascension | 19 49 25.99 (0.03) | 19 49 25.99 | 19 49 25.99 | 19 49 25.91 (0.03) | 19 49 25.99 | ||
| Declination | -44 05 12.83 (0.03) | -44 05 12.81 | -44 05 12.83 | -44 05 12.18 (0.03) | -44 05 12.81 | ||
| Spectral type | DA | DA | |||||
| Effective temperature | [K] | 27219.0 (363) | |||||
| log(g) | [cgs] | 8.50 (0.01) | |||||
| Mass | [M☉] | 0.94 (0.01) | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 17.51 (0.04) | 17.43 (0.05) | 17.51 | 17.51 (0.04) | 17.43 (0.05) | |
| Distance | [pc] | 57.12 (0.1) | 57.36 (0.2) | 57.12 | 57.12 (0.1) | 57.36 (0.2) | |
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 53.99033561 (0.05) | 53.88691335 (0.09) | 53.99 (0.05) | 53.88691335 | ||
| Proper motion (declination) | [mas/yr] | -40.66490945 (0.03) | -40.67792897 (0.07) | -40.665 (0.03) | -40.67792897 | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 14.74 (0.02) | ||||||
| V magnitude | 14.80 (0.01) | ||||||
| R magnitude | 15.04 (0.08) | ||||||
| I magnitude | 15.12 (0.04) | ||||||
| J magnitude | 15.38 (0.06) | ||||||
| H magnitude | 15.49 (0.1) | ||||||
| K magnitude | 15.45 (0.2) | ||||||
| u magnitude | |||||||
| g magnitude | 14.60 (0.01) | ||||||
| r magnitude | 15.00 (0.01) | ||||||
| i magnitude | |||||||
| z magnitude | |||||||
| G magnitude | 14.79 (0.002) | 14.81 | 14.79 | 14.79 (0.003) | 14.81 | ||
| BP magnitude | 14.67 (0.002) | 14.63 | 14.63 | ||||
| RP magnitude | 15.04 (0.001) | 15.04 | 15.04 | ||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.005 | ||||||
* 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.