All names: NLTT 12412, WDS J04021-3429D, Gaia EDR3 4858250332725925760, DENIS J040159.5-342811, Gaia DR2 4858250332725925760, WDJ040159.69-342811.78, Gaia DR3 4858250332725925760, 2MASS J04015966-3428119, TIC 166934310, ** LDS 3551D, WD 0400-346, USNO-B1.0 0555-00036511, LP 944-99
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Tremblay et al. 2017 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 02 00.17 (0.05) | 04 02 00.16 (0.07) | 04 02 00.17 | 04 01 59.69 (0.05) | 04 02 00.16 | 04 01 58.80 | |||
| Declination | -34 28 11.93 (0.07) | -34 28 11.93 (0.08) | -34 28 11.93 | -34 28 11.77 (0.07) | -34 28 11.93 | -34 28 06.60 | |||
| Spectral type | DC | DC | DA9.9 | DC9.9+G1 | |||||
| Effective temperature | [K] | 5100.0 (100) | 5369.0 (33) | ||||||
| log(g) | [cgs] | 7.77 (0.02) | |||||||
| Mass | [M☉] | 0.452 (0.01) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 21.73 (0.08) | 21.61 (0.09) | 19.35 (0.6) | 21.73 | 21.73 (0.08) | 21.61 (0.09) | 19.20 (1) | |
| Distance | [pc] | 46.01 (0.2) | 46.28 (0.2) | 51.68 (2) | 46.01 | 46.01 (0.2) | 46.28 (0.2) | 52.08 (3) | |
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 374.6271185 (0.07) | 374.2393487 (0.1) | 374.627 (0.07) | 374.2393487 | ||||
| Proper motion (declination) | [mas/yr] | -10.03508962 (0.1) | -9.602625224 (0.2) | -10.035 (0.1) | -9.602625224 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 17.60 | ||||||||
| V magnitude | 17.82 (0.05) | 17.82 | |||||||
| R magnitude | 17.80 | ||||||||
| I magnitude | 16.58 (0.1) | ||||||||
| J magnitude | 16.83 (0.1) | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 17.52 (0.009) | 17.54 | 17.42 (0.002) | 17.52 | 17.52 (0.003) | 17.54 | |||
| BP magnitude | 17.96 (0.009) | 17.97 | 17.97 | ||||||
| RP magnitude | 16.94 (0.006) | 16.95 | 16.95 | ||||||
| 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.