All names: 2RE J0239+500, UCAC4 701-019765, TIC 301739456, RE J0239+500, WISE J023948.19+500346.9, Gaia DR2 450931644363332352, WISEA J023948.18+500346.7, 2RE J023949+500400, Gaia EDR3 450931644363332352, WD 0236+498, 2EUVE J0239+50.0, Gaia DR3 450931644363332352, 2MASS J02394838+5003478, 1RXS J023947.9+500349, RE J023947+500403, EUVE J0239+50.0
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 39 48.39 (0.03) | 02 39 48.39 (0.05) | 02 39 48.39 | 02 39 48.40 (0.03) | 02 39 47.35 | |||
| Declination | 50 03 48.27 (0.04) | 50 03 48.26 (0.05) | 50 03 48.27 | 50 03 48.04 (0.04) | 50 03 59.04 | |||
| Spectral type | DA | DA | DA1.5 | DA2 | ||||
| Effective temperature | [K] | 34150.0 (510) | 34918.0 (1151) | |||||
| log(g) | [cgs] | 8.67 (0.05) | 8.56 (0.02) | |||||
| Mass | [M☉] | 1.05 (0.03) | 0.986 (0.02) | |||||
| 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] | 9.45 (0.04) | 9.42 (0.06) | 9.45 | 9.45 (0.04) | |||
| Distance | [pc] | 105.86 (0.5) | 106.12 (0.7) | 88.00 | 105.86 | 105.86 (0.5) | ||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -5.890966877 (0.05) | -6.06100196 (0.1) | -5.891 (0.05) | ||||
| Proper motion (declination) | [mas/yr] | 14.6885776 (0.05) | 14.7213791 (0.1) | 14.689 (0.05) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 15.55 (0.05) | |||||||
| V magnitude | 15.71 (0.02) | |||||||
| R magnitude | 15.65 (0.4) | |||||||
| I magnitude | ||||||||
| J magnitude | 16.46 (0.1) | |||||||
| H magnitude | 16.03 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | 15.45 (0.01) | |||||||
| r magnitude | 16.05 (0.1) | |||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 15.72 (0.003) | 15.74 | 15.72 | 15.72 (0.003) | ||||
| BP magnitude | 15.57 (0.003) | 15.52 | ||||||
| RP magnitude | 16.02 (0.003) | 16.01 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.011 | |||||||
* 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.