All names: HE 0423-1434, USNO-B1.0 0755-00051247, Gaia DR3 3175826469387675136, Gaia EDR3 3175826469387675136, WD 0423-145, Gaia DR2 3175826469386965120, TIC 71047543, EC 04235-1434, 2MASS J04255178-1427522
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Bergeron et al. 2011 | Voss et al. 2007 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 25 51.89 (0.05) | 04 25 51.89 (0.05) | 04 25 51.89 | 04 25 51.79 (0.05) | 04 25 51.91 | ||||
| Declination | -14 27 53.34 (0.03) | -14 27 53.31 (0.03) | -14 27 53.34 | -14 27 52.52 (0.03) | -14 27 45.00 | ||||
| Spectral type | DB | DB | DB/sdBHe | DB3.0 | |||||
| Effective temperature | [K] | 16900.0 (402) | 16904.0 | 16688.0 (274) | |||||
| log(g) | [cgs] | 8.08 (0.09) | 7.79 | 8.00 (0.02) | |||||
| Mass | [M☉] | 0.64 (0.05) | 0.481 | 0.591 (0.02) | |||||
| log(Luminosity) | [L☉] | -1.97 | |||||||
| Cooling age | [Gyr] | 0.1622 | |||||||
| log(H/He) | <-5.98 (1) | ||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(N/He) | |||||||||
| log(O/He) | |||||||||
| log(Na/He) | |||||||||
| log(Mg/He) | |||||||||
| log(Al/He) | |||||||||
| log(Si/He) | |||||||||
| log(P/He) | |||||||||
| log(S/He) | |||||||||
| log(Cl/He) | |||||||||
| log(Sc/He) | |||||||||
| log(Ti/He) | |||||||||
| log(V/He) | |||||||||
| log(Cr/He) | |||||||||
| log(Mn/He) | |||||||||
| log(Fe/He) | |||||||||
| log(Co/He) | |||||||||
| log(Ni/He) | |||||||||
| log(Cu/He) | |||||||||
| log(Zn/He) | |||||||||
| log(Ga/He) | |||||||||
| log(Ge/He) | |||||||||
| log(Sr/He) | |||||||||
| Parallax | [mas] | 8.45 (0.06) | 8.45 (0.08) | 8.45 | 8.45 (0.06) | ||||
| Distance | [pc] | 118.32 (0.9) | 118.30 (1) | 104.00 | 118.32 | 118.32 (0.9) | |||
| Composition | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | 89.21785077 (0.06) | 89.26847458 (0.1) | 89.218 (0.06) | |||||
| Proper motion (declination) | [mas/yr] | -51.17611875 (0.05) | -51.14859329 (0.08) | -51.176 (0.05) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.21 | 16.33 | |||||||
| V magnitude | 16.21 | 16.39 | |||||||
| R magnitude | 16.60 | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.84 (0.1) | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 16.38 (0.002) | 16.39 | 16.38 | 16.38 (0.003) | |||||
| BP magnitude | 16.31 (0.002) | 16.25 | |||||||
| RP magnitude | 16.50 (0.003) | 16.49 | |||||||
| 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.