All names: WD 1800+686, 2RE J1800+683, FBS B 855, RE J1800+683, Gaia DR2 2259145032395524224, FBS 1800+686, WD 1800+685, KUV 18004+6836, 2MASS J18000961+6835522, RE J180016+683545, 2E 1800.4+6836, RE J180005+683618, GSC 04429-00334, [TSA98] J180009.89+683616.33, EUVE J1800+68.6, 1RXS J180009.9+683557, 2EUVE J1800+68.5, 2E 3996, RE J1800+68, RX J1800.2+6836, 2RE J180009+683614, EUVE J1800+68.5, RX J1800.1+6835
| Parameter | Unit | Gaia DR2 | Gianninas et al. 2011 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|
| Right ascension | 18 00 09.50 (0.05) | 18 00 09.62 | 18 00 10.34 | ||
| Declination | 68 35 50.85 (0.05) | 68 35 52.19 | 68 35 55.32 | ||
| Spectral type | DA | DA1.1 | DA1 | ||
| Effective temperature | [K] | 45230.0 (789) | |||
| log(g) | [cgs] | 7.88 (0.06) | |||
| Mass | [M☉] | 0.63 (0.03) | |||
| 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] | 6.65 (0.05) | |||
| Distance | [pc] | 150.45 (1) | 152.00 | ||
| Composition | H | ||||
| Proper motion (right ascension) | [mas/yr] | -42.93717239 (0.1) | -49.0 | ||
| Proper motion (declination) | [mas/yr] | -89.18405033 (0.1) | -91.4 | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | 14.60 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.50 | ||||
| H magnitude | 15.93 | ||||
| K magnitude | |||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 14.82 | ||||
| BP magnitude | 14.58 | ||||
| RP magnitude | 15.11 | ||||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.