All names: WDJ180919.46+295720.85, Gaia DR3 4590489981163833984, TIC 332689126, Gaia DR2 4590489981163833984, GALEX J180919.4+295719, UCAC4 600-062176, CNS5 4494, Gaia EDR3 4590489981163833984, WDJ180919.46+295720.84, 2MASS J18091945+2957208, UCAC2 42255980, HD 166435B
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | McCleery et al. 2020 | Tremblay et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 18 09 19.54 (0.02) | 18 09 19.54 (0.03) | 18 09 19.54 | 18 09 19.54 | 18 09 19.46 (0.02) | 18 09 19.54 | |||||
| Declination | 29 57 22.04 (0.02) | 29 57 22.00 (0.04) | 29 57 22.00 | 29 57 22.04 | 29 57 20.85 (0.02) | 29 57 22.00 | |||||
| Spectral type | DA | DA | DA | DA | DA2.2 | ||||||
| Effective temperature | [K] | 22522.0 (455) | 22514.7 (163) | 22515.0 (160) | 24078.0 (198) | ||||||
| log(g) | [cgs] | 8.38 (0.02) | 8.38 (0.009) | 8.39 (0.01) | 8.45 (0.007) | ||||||
| Mass | [M☉] | 0.861 (0.01) | 0.908 (0.006) | ||||||||
| 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] | 40.90 (0.02) | 40.90 (0.02) | 40.90 (0.04) | 40.90 (0.04) | 40.90 | 40.90 (0.02) | 40.90 (0.04) | |||
| Distance | [pc] | 24.45 (0.01) | 24.45 (0.01) | 24.45 (0.03) | 24.45 (0.03) | 24.45 | 24.45 (0.01) | 24.45 (0.03) | |||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 67.11053652 (0.02) | 66.93068847 (0.06) | 67.111 (0.03) | 66.93068847 | ||||||
| Proper motion (declination) | [mas/yr] | 74.32586261 (0.03) | 74.25088432 (0.07) | 74.326 (0.03) | 74.25088432 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | 13.33 (0.09) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 13.70 (0.03) | ||||||||||
| H magnitude | 13.74 (0.04) | ||||||||||
| K magnitude | 13.86 (0.03) | ||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 13.13 (0.001) | 13.14 | 13.14 | 13.13 | 13.13 (0.003) | 13.14 | |||||
| BP magnitude | 13.03 (0.001) | 12.99 | 12.99 | ||||||||
| RP magnitude | 13.34 (0.0009) | 13.34 | 13.34 | ||||||||
| Pan g magnitude | 13.15 (0) | ||||||||||
| Pan r magnitude | 15.78 (0.004) | ||||||||||
| Pan i magnitude | 13.67 (0.005) | ||||||||||
| Pan z magnitude | 13.93 (0.02) | ||||||||||
| Pan y magnitude | 14.09 (0.003) | ||||||||||
| E(B-V) | 0.001 | ||||||||||
* 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.