All names: Gaia DR2 2691204212499446272, SDSS J211921.37+005749.7, Gaia DR3 2691204212499446272, UCAC4 455-116076, Gaia EDR3 2691204212499446272, SDSS J211921.36+005749.75, PG 2116+008, 2MASS J21192139+0057509, SDSS J211921.36+005749.7, PG2116+008, GALEX J211921.4+005750, TIC 376401628
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 19 21.37 (0.05) | 21 19 21.37 | 21 19 21.37 | 21 19 21.37 | 21 19 21.37 (0.06) | 21 19 21.37 (0.05) | 21 19 21.37 | ||||
| Declination | 00 57 49.73 (0.04) | 00 57 49.73 | 00 57 49.73 | 00 57 50.15 | 00 57 49.73 (0.05) | 00 57 49.77 (0.04) | 00 57 49.76 | ||||
| Spectral type | He-sdO | He-sdO | sdO | SDO | |||||||
| Effective temperature | [K] | 45198.0 (2000) | 48462.0 (47) | 100000.0 (794) | |||||||
| log(g) | [cgs] | 5.69 (0.2) | 7.00 (0.05) | 5.62 (0.04) | |||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 0.36 (0.06) | 0.26 (0.07) | 0.26 (0.07) | 0.36 (0.06) | ||||||
| Distance | [pc] | 2767.63 (463) | 3806.62 (1039) | 3807.28 (1039) | 2767.78 (463) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 0.116991345 (0.06) | 0.315 (0.1) | 0.315212336 (0.1) | 0.117 (0.06) | 1.9 | |||||
| Proper motion (declination) | [mas/yr] | -2.584134706 (0.04) | -2.643 (0.1) | -2.643448012 (0.1) | -2.584 (0.04) | -2.2 | |||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.66 (0.04) | ||||||||||
| V magnitude | 15.82 (0.01) | ||||||||||
| R magnitude | 16.19 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.33 (0.1) | 16.33 (0.1) | |||||||||
| H magnitude | 16.52 (0.3) | 16.52 (0.3) | |||||||||
| K magnitude | 15.89 (0.3) | 15.89 (0.3) | |||||||||
| u magnitude | 15.14 (0.005) | 15.14 (0.005) | 15.14 (0.005) | 15.15 (0.02) | 15.14 (0.005) | 15.18 (0.01) | |||||
| g magnitude | 15.51 (0.004) | 15.51 (0.004) | 15.51 (0.004) | 15.55 (0.01) | 15.51 (0.004) | 15.57 (0.01) | |||||
| r magnitude | 15.99 (0.005) | 15.99 (0.005) | 15.99 (0.005) | 16.00 (0.01) | 15.99 (0.005) | 16.00 (0.008) | |||||
| i magnitude | 16.33 (0.005) | 16.33 (0.005) | 16.32 (0.005) | 16.33 (0.01) | 16.32 (0.005) | 16.36 (0.01) | |||||
| z magnitude | 16.63 (0.009) | 16.63 (0.009) | 16.63 (0.009) | 16.64 (0.01) | 16.63 (0.009) | 16.61 (0.02) | |||||
| G magnitude | 15.76 (0.002) | 15.78 (0.001) | 15.78 | 15.76 (0.003) | |||||||
| BP magnitude | 15.62 (0.002) | 15.57 (0.007) | 15.57 | ||||||||
| RP magnitude | 16.02 (0.004) | 16.02 (0.006) | 16.02 | ||||||||
| Pan g magnitude | 15.63 (0.002) | 15.63 (0.002) | |||||||||
| Pan r magnitude | 16.02 (0.003) | 16.02 (0.003) | |||||||||
| Pan i magnitude | 16.36 (0.002) | 16.36 (0.002) | |||||||||
| Pan z magnitude | 16.61 (0.003) | 16.61 (0.003) | |||||||||
| Pan y magnitude | 16.80 (0.01) | 16.80 (0.01) | |||||||||
| E(B-V) | 0.038 | ||||||||||
* 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.