All names: SCR J0402-4037, L 373-7, UCAC4 247-004133, WDJ040241.53-403747.83, WISE J040241.48-403750.7, MCT 0400-4045, USNO-B1.0 0493-00035699, TIC 321126812, 2MASS J04024153-4037476, LEP0402-4037, Gaia DR3 4842472688760384384, Gaia EDR3 4842472688760384384, UCAC3 99-9525, NLTT 12453, WISEA J040241.49-403750.7, Gaia DR2 4842472688760384384, GALEX J040241.5-403749
| 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.