All names: Gaia DR2 2625750938132516224, HE 2220-0633, UCAC4 419-146421, Gaia DR3 2625750938132516224, USNO-B1.0 0837-00660078, TIC 39927600, WD 2220-065, Gaia EDR3 2625750938132516224, WDJ222244.34-061755.17, GALEX J222244.3-061754, PHL 243, 2MASS J22224434-0617544
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 22 44.21 (0.04) | 22 22 44.22 (0.06) | 22 22 44.21 | 22 22 44.34 (0.04) | 22 22 44.22 | 22 22 43.92 | ||||
| Declination | -06 17 56.00 (0.03) | -06 17 55.98 (0.05) | -06 17 56.00 | -06 17 55.16 (0.03) | -06 17 55.98 | -06 17 48.84 | ||||
| Spectral type | DA | DA | DA | |||||||
| Effective temperature | [K] | 15523.0 (38) | 15394.0 (201) | |||||||
| log(g) | [cgs] | 7.88 (0.007) | 8.02 (0.01) | |||||||
| Mass | [M☉] | 0.626 (0.01) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 11.90 (0.04) | 11.77 (0.07) | 11.90 | 11.90 (0.04) | 11.77 (0.07) | ||||
| Distance | [pc] | 84.02 (0.3) | 84.97 (0.5) | 84.02 | 84.02 (0.3) | 84.97 (0.5) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -116.4435498 (0.05) | -116.2939701 (0.1) | -116.444 (0.05) | -116.2939701 | |||||
| Proper motion (declination) | [mas/yr] | -52.56999702 (0.04) | -52.38491389 (0.1) | -52.57 (0.04) | -52.38491389 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.97 | 15.60 | ||||||||
| V magnitude | ||||||||||
| R magnitude | 15.06 (0.9) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.23 (0.1) | |||||||||
| H magnitude | 16.31 (0.3) | |||||||||
| K magnitude | ||||||||||
| u magnitude | 16.03 (0.006) | |||||||||
| g magnitude | 15.75 (0.003) | |||||||||
| r magnitude | 16.04 (0.004) | |||||||||
| i magnitude | 16.31 (0.004) | |||||||||
| z magnitude | 16.55 (0.01) | |||||||||
| G magnitude | 15.91 (0.002) | 15.94 | 15.91 | 15.91 (0.003) | 15.94 | |||||
| BP magnitude | 15.87 (0.002) | 15.86 | 15.86 | |||||||
| RP magnitude | 16.04 (0.004) | 16.03 | 16.03 | |||||||
| Pan g magnitude | 15.80 (0.004) | |||||||||
| Pan r magnitude | 16.06 (0.004) | |||||||||
| Pan i magnitude | 16.35 (0.003) | |||||||||
| Pan z magnitude | 16.59 (0.007) | |||||||||
| Pan y magnitude | 16.76 (0.008) | |||||||||
| 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.