All names: Gaia EDR3 2258413758380511488, KUV 18004+6836, RE J1800+68, AP J18000961+6835522, [TSA98] J180009.89+683616.33, 2RE J1800+683, TIC 219099282, RE J180005+683618, GSC 04429-00334, RE J180016+683545, WD 1800+685, 2EUVE J1800+68.5, Gaia DR2 2258413758380511488, GALEX J180009.7+683552, 2E 1800.4+6836, RX J1800.1+6835, FBS B 855, EUVE J1800+68.6, 2RE J180009+683614, 1RXS J180009.9+683557, RE J1800+683, UCAC4 793-028257, Gaia DR3 2258413758380511488, FBS 1800+686, EUVE J1800+68.5, 2MASS J18000961+6835522, 2E 3996, RX J1800.2+6836
| 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 00 09.49 (0.03) | 18 00 09.50 (0.05) | 18 00 09.49 | 18 00 09.62 (0.03) | 18 00 10.34 | |||
| Declination | 68 35 50.80 (0.03) | 68 35 50.85 (0.05) | 68 35 50.80 | 68 35 52.23 (0.03) | 68 35 55.32 | |||
| Spectral type | DA | DA | DA1.1 | DA1 | ||||
| Effective temperature | [K] | 45230.0 (789) | 57579.0 (3640) | |||||
| log(g) | [cgs] | 7.88 (0.06) | 7.96 (0.03) | |||||
| Mass | [M☉] | 0.63 (0.03) | 0.684 (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] | 6.67 (0.03) | 6.65 (0.05) | 6.67 | 6.67 (0.03) | |||
| Distance | [pc] | 149.99 (0.7) | 150.45 (1) | 152.00 | 149.99 | 149.99 (0.7) | ||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -42.85849409 (0.04) | -42.93717239 (0.1) | -42.858 (0.04) | ||||
| Proper motion (declination) | [mas/yr] | -88.88813931 (0.05) | -89.18405033 (0.1) | -88.888 (0.04) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 14.68 (0.1) | |||||||
| V magnitude | 14.69 (0.08) | |||||||
| R magnitude | 15.00 (0.1) | |||||||
| I magnitude | ||||||||
| J magnitude | 15.50 (0.06) | |||||||
| H magnitude | 15.93 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | 14.71 (0.08) | |||||||
| r magnitude | 14.97 (0.1) | |||||||
| i magnitude | 15.18 (0.01) | |||||||
| z magnitude | ||||||||
| G magnitude | 14.80 (0.002) | 14.82 | 14.80 | 14.80 (0.003) | ||||
| BP magnitude | 14.64 (0.002) | 14.58 | ||||||
| RP magnitude | 15.12 (0.002) | 15.11 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.015 | |||||||
* 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.