All names: Gaia DR3 1093600863720479744, SDSS J081825.96+660645.1, PM J08184+6606, 08184+6606, Gaia EDR3 1093600863720479744, Gaia DR2 1093600863720479744, SDSS J081825.97+660644.8, 2MASS J08182602+6606453, TIC 99680506, GALEX J081825.9+660644
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Limoges et al. 2015 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 08 18 25.92 (0.01) | 08 18 25.93 (0.02) | 08 18 26.00 (0.01) | |||
| Declination | 66 06 43.96 (0.02) | 66 06 44.00 (0.03) | 66 06 45.23 (0.02) | |||
| Spectral type | DA+dM | DA+dM | ||||
| Effective temperature | [K] | 12990.0 (1078) | ||||
| log(g) | [cgs] | 8.00 (0.2) | ||||
| Mass | [M☉] | 0.61 (0.1) | ||||
| log(Luminosity) | [L☉] | -3.52 | ||||
| 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] | 5.48 (0.03) | 5.47 (0.04) | 5.48 (0.03) | ||
| Distance | [pc] | 182.53 (1) | 182.79 (1) | 113.80 (51) | 182.54 (1) | |
| Composition | H | |||||
| Proper motion (right ascension) | [mas/yr] | -28.13965984 (0.02) | -28.10547393 (0.04) | -16.0 | -28.14 (0.02) | |
| Proper motion (declination) | [mas/yr] | -79.66984617 (0.03) | -79.7705216 (0.05) | -73.0 | -79.67 (0.03) | |
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | WDMS | |||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 12.96 | 12.96 (0.02) | ||||
| H magnitude | 12.37 | 12.37 (0.02) | ||||
| K magnitude | 12.13 | 12.13 (0.02) | ||||
| u magnitude | 17.20 | 17.20 (0.009) | ||||
| g magnitude | 16.54 | 16.54 (0.004) | ||||
| r magnitude | 15.80 | 15.80 (0.004) | ||||
| i magnitude | 15.11 | 15.63 (0.006) | ||||
| z magnitude | 14.31 | 14.31 (0.005) | ||||
| G magnitude | 15.44 (0.003) | 15.46 | 15.44 (0.003) | |||
| BP magnitude | 16.33 (0.003) | 16.33 | ||||
| RP magnitude | 14.45 (0.001) | 14.47 | ||||
| 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.