All names: RE J0427+740, 1RXS J042734.0+740735, FBS 0421+740, RE J042735+740706, RE J0427+741, Gaia EDR3 501974066499467648, TIC 103448057, 2MASS J04273356+7407317, 2RE J0427+740, WD 0421+740, Gaia DR2 501974066499467648, Gaia DR3 501974066499467648, FBS B 942, 2RE J042734+740709, 2EUVE J0427+74.1, EUVE J0427+74.1, GALEX J042733.7+740731, UCAC4 821-010484
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 27 33.49 (0.03) | 04 27 33.49 (0.04) | 04 27 33.49 | 04 27 33.52 (0.03) | 04 27 35.66 | |||
| Declination | 74 07 31.78 (0.03) | 74 07 31.77 (0.04) | 74 07 31.78 | 74 07 31.55 (0.03) | 74 07 03.36 | |||
| Spectral type | DA | DA | DA.9 | DA1 | ||||
| Effective temperature | [K] | 53880.0 (1103) | 69406.0 (5286) | |||||
| log(g) | [cgs] | 7.92 (0.07) | 8.10 (2) | |||||
| Mass | [M☉] | 0.66 (0.03) | 0.76 (146) | |||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| 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] | 5.06 (0.04) | 5.17 (0.05) | 5.06 | 5.06 (0.04) | |||
| Distance | [pc] | 197.78 (1) | 193.46 (2) | 148.00 | 197.78 | 197.78 (1) | ||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -8.354551648 (0.03) | -8.223536813 (0.06) | -8.355 (0.03) | ||||
| Proper motion (declination) | [mas/yr] | 14.7384718 (0.04) | 14.73302216 (0.08) | 14.738 (0.04) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 15.17 (0.06) | |||||||
| V magnitude | 15.46 (0.07) | |||||||
| R magnitude | 15.80 (0.3) | |||||||
| I magnitude | ||||||||
| J magnitude | 16.05 (0.09) | |||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | 15.22 (0.05) | |||||||
| r magnitude | 15.63 (0.08) | |||||||
| i magnitude | 15.82 (0.01) | |||||||
| z magnitude | ||||||||
| G magnitude | 15.47 (0.001) | 15.49 | 15.47 | 15.47 (0.003) | ||||
| BP magnitude | 15.31 (0.001) | 15.26 | ||||||
| RP magnitude | 15.80 (0.003) | 15.80 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.054 | |||||||
* 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.