All names: MCT 0400-4045, USNO-B1.0 0493-00035699, WISE J040241.48-403750.7, UCAC3 99-9525, SCR J0402-4037, GALEX J040241.5-403749, 2MASS J04024153-4037476, NLTT 12453, Gaia DR2 4842472688760384384, L 373-7, LEP0402-4037, WDJ040241.53-403747.83, TIC 321126812, Gaia DR3 4842472688760384384, Gaia EDR3 4842472688760384384, WISEA J040241.49-403750.7, UCAC4 247-004133
| Parameter | Unit | Gaia EDR3 | Subasavage et al. 2022 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 02 41.47 (0.02) | 04 02 41.47 | 04 02 41.47 | 04 02 41.53 (0.02) | 04 02 41.47 | ||||
| Declination | -40 37 52.40 (0.02) | -40 37 52.26 | -40 37 52.40 | -40 37 47.83 (0.02) | -40 37 52.26 | ||||
| Spectral type | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 9953.0 (326) | 10333.0 (160) | 10076.0 (48) | |||||
| log(g) | [cgs] | 7.96 (0.05) | 7.95 (0.07) | 7.98 (0.008) | |||||
| Mass | [M☉] | 0.576 (0.04) | 0.57 (0.04) | 0.587 (0.006) | |||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.5429 | |||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(C/H) | |||||||||
| log(N/H) | |||||||||
| log(O/H) | |||||||||
| log(Na/H) | |||||||||
| log(Mg/H) | |||||||||
| log(Al/H) | |||||||||
| log(Si/H) | |||||||||
| log(P/H) | |||||||||
| log(S/H) | |||||||||
| log(Sc/H) | |||||||||
| log(Ti/H) | |||||||||
| log(Cr/H) | |||||||||
| log(Mn/H) | |||||||||
| log(Fe/H) | |||||||||
| log(Ni/H) | |||||||||
| Parallax | [mas] | 22.07 (0.02) | 22.08 (0.03) | 22.08 (0.03) | 22.07 | 22.07 (0.02) | 22.08 (0.03) | ||
| Distance | [pc] | 45.30 (0.05) | 45.28 (0.06) | 45.00 | 45.28 (0.06) | 45.30 | 45.30 (0.05) | 45.28 (0.06) | |
| Composition | H | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -47.34919103 (0.02) | -47.27064588 (0.05) | -47.349 (0.02) | -47.27064588 | ||||
| Proper motion (declination) | [mas/yr] | -285.7663982 (0.03) | -285.6247008 (0.07) | -285.766 (0.03) | -285.6247008 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.59 | 15.66 | |||||||
| V magnitude | 15.41 | ||||||||
| R magnitude | 15.36 | 15.63 (0.05) | |||||||
| I magnitude | 15.29 | 15.38 | |||||||
| J magnitude | 15.31 | 15.31 (0.05) | |||||||
| H magnitude | 15.30 | 15.30 (0.08) | |||||||
| K magnitude | 15.25 | 15.25 (0.1) | |||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 15.39 (0.002) | 15.41 | 15.39 | 15.39 (0.003) | 15.41 | ||||
| BP magnitude | 15.44 (0.002) | 15.43 | 15.43 | ||||||
| RP magnitude | 15.31 (0.002) | 15.31 | 15.31 | ||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.000 | ||||||||
* 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.