All names: [HHD2009] SDSS J2206-0058, SDSS J220653.43-005812.6, Gaia EDR3 2677267696458154880, SDSS J220653.42-005812.6, WISEA J220653.45-005813.5, WD 2204-012, WISE J220653.43-005813.6, Gaia DR2 2677267696458154880
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 06 53.44 (0.7) | 22 06 53.43 | 22 06 53.44 (0.5) | 22 06 53.42 | 22 06 53.43 | 22 06 53.43 | 22 06 53.38 | 22 06 53.43 | |||
| Declination | -00 58 12.80 (0.7) | -00 58 12.65 | -00 58 12.79 (0.5) | -00 58 12.61 | -00 58 12.65 | -00 58 12.64 | -00 58 08.04 | -00 58 12.61 | |||
| Spectral type | DA+K | DA+K | DA+M | DA dK | DA+M | ||||||
| Effective temperature | [K] | 15422.0 (1681) | 6306.0 (10) | 6303.0 (8) | |||||||
| log(g) | [cgs] | 7.51 (0.4) | 6.92 (0.3) | 6.34 (0.4) | |||||||
| Mass | [M☉] | 0.38 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 1.16 (0.8) | 0.31 (0.6) | ||||||||
| Distance | [pc] | 858.40 (576) | 3274.74 (6180) | 614.00 (98) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 1.814138842 (0.8) | 3.109016869 (0.8) | -1.0 (4) | -0.8 | ||||||
| Proper motion (declination) | [mas/yr] | -13.7540543 (0.9) | -10.79744649 (0.9) | -5.0 (4) | -3.4 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.21 (0.03) | ||||||||||
| H magnitude | 16.60 (0.04) | ||||||||||
| K magnitude | 16.54 (0.06) | ||||||||||
| u magnitude | 20.35 (0.05) | 20.39 | 20.35 (0.05) | 20.39 (0.05) | 20.39 | 20.39 (0.05) | |||||
| g magnitude | 19.75 (0.01) | 19.77 | 19.75 (0.01) | 19.77 (0.02) | 19.77 | 19.78 (0.02) | |||||
| r magnitude | 19.16 (0.01) | 19.20 | 19.16 (0.01) | 19.20 (0.02) | 19.20 | 19.20 (0.02) | |||||
| i magnitude | 18.71 (0.01) | 18.74 | 18.71 (0.01) | 18.74 (0.02) | 18.74 | 18.73 (0.02) | |||||
| z magnitude | 18.35 (0.03) | 18.39 | 18.35 (0.03) | 18.39 (0.03) | 18.39 | 18.37 (0.03) | |||||
| G magnitude | 19.56 (0.07) | 19.51 | |||||||||
| BP magnitude | 19.65 (0.07) | 19.68 | |||||||||
| RP magnitude | 18.40 (0.05) | 18.39 | |||||||||
| Pan g magnitude | 19.77 (0.01) | ||||||||||
| Pan r magnitude | 19.25 (0.009) | ||||||||||
| Pan i magnitude | 18.81 (0.007) | ||||||||||
| Pan z magnitude | 18.52 (0.004) | ||||||||||
| Pan y magnitude | 18.37 (0.02) | ||||||||||
| E(B-V) | 0.103 | ||||||||||
* 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.