All names: WD 2302+45, 2MASS J23044243+4559283, Gaia DR2 1936049627862306432, EGGR 403, GD 404, WD 2302+457, Gaia DR3 1936049627862306432, UCAC4 680-128350, TIC 173175807, Gaia EDR3 1936049627862306432
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 04 42.63 (0.02) | 23 04 42.63 (0.03) | 23 04 42.63 | 23 04 42.44 (0.02) | 23 04 42.00 | |||
| Declination | 45 59 28.41 (0.02) | 45 59 28.40 (0.03) | 45 59 28.41 | 45 59 28.02 (0.02) | 45 59 24.00 | |||
| Spectral type | DA | DA | DA2.1 | DA2 | ||||
| Effective temperature | [K] | 24010.0 (378) | 22750.0 (259) | |||||
| log(g) | [cgs] | 7.94 (0.05) | 7.96 (0.01) | |||||
| Mass | [M☉] | 0.6 (0.03) | 0.61 (0.008) | |||||
| 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] | 8.54 (0.04) | 8.51 (0.05) | 8.54 | 8.54 (0.04) | |||
| Distance | [pc] | 117.04 (0.5) | 117.45 (0.7) | 124.00 | 117.04 | 117.04 (0.5) | ||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | 123.8363676 (0.03) | 123.7253524 (0.08) | 123.836 (0.03) | ||||
| Proper motion (declination) | [mas/yr] | 23.93344001 (0.03) | 24.14213842 (0.07) | 23.933 (0.03) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 15.63 (0.1) | |||||||
| V magnitude | 15.77 (0.2) | |||||||
| R magnitude | 15.83 (0.1) | |||||||
| I magnitude | ||||||||
| J magnitude | 16.06 (0.1) | |||||||
| H magnitude | 16.00 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | ||||||||
| r magnitude | ||||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 15.85 (0.003) | 15.87 | 15.85 | 15.85 (0.003) | ||||
| BP magnitude | 15.75 (0.003) | 15.71 | ||||||
| RP magnitude | 16.05 (0.004) | 16.05 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.026 | |||||||
* 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.