All names: RX J1800.2+6836, [TSA98] J180009.89+683616.33, Gaia DR3 2258413758380511488, GSC 04429-00334, RE J180005+683618, Gaia DR2 2258413758380511488, 2RE J180009+683614, 1RXS J180009.9+683557, RE J1800+683, 2RE J1800+683, 2MASS J18000961+6835522, FBS 1800+686, Gaia EDR3 2258413758380511488, 2E 3996, AP J18000961+6835522, 2EUVE J1800+68.5, EUVE J1800+68.6, GALEX J180009.7+683552, KUV 18004+6836, UCAC4 793-028257, RX J1800.1+6835, TIC 219099282, EUVE J1800+68.5, WD 1800+685, RE J180016+683545, 2E 1800.4+6836, FBS B 855, WDJ180009.62+683552.23, RE J1800+68
| Parameter | Unit | Gaia EDR3 | Kilic et al. 2026a | 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 | DA | DA1.1 | DA1 | ||||
| Effective temperature | [K] | 34747.0 (1582) | 45230.0 (789) | 57579.0 (3640) | |||||
| log(g) | [cgs] | 7.55 (0.03) | 7.88 (0.06) | 7.96 (0.03) | |||||
| Mass | [M☉] | 0.459 (0.02) | 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(Li/H) | |||||||||
| log(Be/H) | |||||||||
| log(B/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(Cl/H) | |||||||||
| log(K/H) | |||||||||
| log(Sc/H) | |||||||||
| log(Ti/H) | |||||||||
| log(V/H) | |||||||||
| log(Cr/H) | |||||||||
| log(Mn/H) | |||||||||
| log(Fe/H) | |||||||||
| log(Co/H) | |||||||||
| log(Ni/H) | |||||||||
| log(Cu/H) | |||||||||
| log(Sr/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 | 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.