All names: TIC 285003213, 2MASS J09091900+2929292, GALEX J090918.9+292929, Gaia DR2 698582825902231168, UCAC4 598-046078, CHSS 583, Gaia EDR3 698582825902231168, LAMOST J090918.99+292929.6, CBS 4, WD 0906+296, USNO-B1.0 1194-00171065, LAMOST J090918.99+292929.61, Gaia DR3 698582825902231168, LP 313-16
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Guo et al. 2015 | Zhao et al. 2013 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 09 18.86 (0.05) | 09 09 18.87 (0.08) | 09 09 18.99 | 09 09 18.86 | 09 09 18.99 (0.05) | 09 09 18.65 | ||||
| Declination | 29 29 28.16 (0.03) | 29 29 28.21 (0.06) | 29 29 29.61 | 29 29 28.16 | 29 29 29.71 (0.03) | 29 29 29.76 | ||||
| Spectral type | DA | DA | DA | DA2.4 | DA | |||||
| Effective temperature | [K] | 21067.0 (204) | 22588.0 (346) | 21060.0 (340) | 21058.0 (340) | |||||
| log(g) | [cgs] | 8.09 (0.03) | 8.04 (0.05) | 7.93 (0.05) | 7.92 (0.02) | |||||
| Mass | [M☉] | 0.68 (0.02) | 0.65 (0.03) | 0.58 (0.03) | 0.582 (0.01) | |||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.0430 (0.008) | ||||||||
| 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] | 8.86 (0.06) | 8.96 (0.1) | 8.86 | 8.86 (0.06) | |||||
| Distance | [pc] | 112.87 (0.8) | 111.62 (1) | 107.00 | 108.00 | 112.87 | 112.87 (0.8) | |||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -103.465213 (0.06) | -103.264827 (0.1) | -103.465 (0.06) | ||||||
| Proper motion (declination) | [mas/yr] | -97.26302349 (0.04) | -97.36572441 (0.1) | -97.263 (0.04) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.50 | |||||||||
| V magnitude | 15.80 | |||||||||
| R magnitude | 16.06 (0.2) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.41 (0.1) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 15.74 | 15.74 | ||||||||
| g magnitude | 15.68 | 15.68 | ||||||||
| r magnitude | 16.04 | 16.04 | ||||||||
| i magnitude | 16.34 | 16.34 | ||||||||
| z magnitude | 16.59 | |||||||||
| G magnitude | 15.86 (0.003) | 15.89 | 15.86 | 15.86 (0.003) | ||||||
| BP magnitude | 15.77 (0.003) | 15.73 | ||||||||
| RP magnitude | 16.01 (0.006) | 16.01 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.004 | |||||||||
* 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.