All names: WISEA J184509.23+682234.7, GALEX J184509.1+682233, 2EUVE J1845+68.3, RE J184504+682222, EUVE J1845+68.3, Gaia DR3 2259145032395524224, WD 1845+683, RE J1845+682, 1RXS J184509.8+682239, Gaia DR2 2259145032395524224, 2RE J184506+682253, TIC 229762574, RE J184510+682302, KUV 18453+6819, 2MASS J18450936+6822354, 2RE J1845+682, RX J1845.2+6822, 2RXF J184508.0+682229, UCAC4 792-028930, Gaia EDR3 2259145032395524224, WISE J184509.24+682234.8
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 18 45 09.17 (0.03) | 18 45 09.17 (0.04) | 18 45 09.17 | 18 45 09.33 (0.03) | 18 45 09.77 | |||
| Declination | 68 22 34.62 (0.03) | 68 22 34.63 (0.04) | 68 22 34.62 | 68 22 34.87 (0.03) | 68 22 34.68 | |||
| Spectral type | DA | DA | DA1.4 | DA1 | ||||
| Effective temperature | [K] | 37310.0 (579) | 42298.0 (1785) | |||||
| log(g) | [cgs] | 8.30 (0.05) | 8.34 (0.02) | |||||
| Mass | [M☉] | 0.83 (0.03) | 0.861 (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] | 8.40 (0.03) | 8.32 (0.04) | 8.40 | 8.40 (0.03) | |||
| Distance | [pc] | 119.10 (0.4) | 120.26 (0.6) | 123.00 | 119.10 | 119.10 (0.4) | ||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -54.75346398 (0.04) | -54.71644709 (0.08) | -54.753 (0.04) | ||||
| Proper motion (declination) | [mas/yr] | -15.48556466 (0.04) | -15.42013222 (0.08) | -15.486 (0.04) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 15.24 (0.03) | |||||||
| V magnitude | 15.00 | |||||||
| R magnitude | 15.65 (0.1) | |||||||
| I magnitude | ||||||||
| J magnitude | 16.07 (0.09) | |||||||
| H magnitude | 16.28 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | 15.23 (0.01) | |||||||
| r magnitude | 15.38 (0.01) | |||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 15.32 (0.002) | 15.33 | 15.32 | 15.32 (0.003) | ||||
| BP magnitude | 15.16 (0.002) | 15.09 | ||||||
| RP magnitude | 15.63 (0.003) | 15.62 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.013 | |||||||
* 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.