All names: Gaia DR3 1743430270303257728, WD 2109+089, TIC 321837918, Gaia DR2 1743430270303257728, 2MASS J21120843+0912019, SDSS J211208.42+091201.9, SDSS J211208.42+091202.0, Gaia EDR3 1743430270303257728
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 12 08.43 (0.1) | 21 12 08.44 | 21 12 08.43 (0.2) | 21 12 08.42 (0.1) | 21 12 08.42 | 21 12 08.59 | 21 12 08.42 | |||
| Declination | 09 12 01.87 (0.1) | 09 12 01.92 | 09 12 01.87 (0.2) | 09 12 01.99 (0.1) | 09 12 02.00 | 09 11 57.84 | 09 12 01.91 | |||
| Spectral type | DZA+M | DZA | DZA | DZAM | ||||||
| Effective temperature | [K] | 6313.0 (19) | 6301.0 (5) | |||||||
| log(g) | [cgs] | 6.68 (0.2) | 5.94 (0.2) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.47 (0.1) | 0.95 (0.3) | 0.47 (0.1) | ||||||
| Distance | [pc] | 2132.53 (656) | 1050.53 (298) | 2132.65 (656) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 12.80327645 (0.2) | 11.958 (0.4) | 12.803 (0.2) | 15.4 | |||||
| Proper motion (declination) | [mas/yr] | -7.441262153 (0.1) | -8.17 (0.3) | -7.441 (0.1) | -6.9 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.79 (0.1) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 19.77 (0.03) | 19.78 (0.04) | 19.79 (0.04) | 19.79 | 19.79 (0.04) | |||||
| g magnitude | 18.69 (0.008) | 19.04 (0.01) | 19.08 (0.02) | 19.07 | 19.07 (0.02) | |||||
| r magnitude | 18.22 (0.008) | 18.24 (0.01) | 18.24 (0.01) | 18.24 | 18.24 (0.01) | |||||
| i magnitude | 18.01 (0.009) | 18.05 (0.01) | 18.08 (0.01) | 18.08 | 18.05 (0.01) | |||||
| z magnitude | 17.90 (0.02) | 17.95 (0.02) | 17.95 (0.03) | 17.95 | 17.92 (0.03) | |||||
| G magnitude | 18.24 (0.02) | 18.26 | 18.24 (0.003) | |||||||
| BP magnitude | 18.62 (0.02) | 18.60 | ||||||||
| RP magnitude | 17.72 (0.02) | 17.71 | ||||||||
| Pan g magnitude | 18.64 (0.008) | |||||||||
| Pan r magnitude | 18.24 (0.005) | |||||||||
| Pan i magnitude | 18.06 (0.005) | |||||||||
| Pan z magnitude | 17.99 (0.005) | |||||||||
| Pan y magnitude | 17.98 (0.02) | |||||||||
| E(B-V) | 0.052 | |||||||||
* 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.