All names: [HHD2009] SDSS J2202+0008, Gaia EDR3 2680447892108035328, [SGR2010] J2202+0008, TIC 293019617, Gaia DR3 2680447892108035328, GALEX J220252.6+000833, SDSS J220252.62+000833.3, 2MASS J22025262+0008333, Gaia DR2 2680447892108035328, SDSS J220252.61+000833.3, WD 2200-000, WIRED J220252.61+000833.3, SDSS J220252.61+000833.4
| 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 | 22 02 52.60 (0.2) | 22 02 52.61 | 22 02 52.60 (0.2) | 22 02 52.62 (0.2) | 22 02 52.61 | 22 02 52.75 | 22 02 52.62 | |||
| Declination | 00 08 33.25 (0.2) | 00 08 33.39 | 00 08 33.26 (0.2) | 00 08 33.35 (0.2) | 00 08 33.46 | 00 08 37.32 | 00 08 33.34 | |||
| Spectral type | DA+M2 | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 6300.0 (1) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.80 (0.1) | 10.00 (0.003) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.78 (0.2) | 1.82 (0.3) | 1.78 (0.2) | ||||||
| Distance | [pc] | 562.83 (61) | 550.23 (93) | 562.84 (61) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -20.48538409 (0.2) | -20.4573339 (0.4) | -20.485 (0.2) | -18.9 | |||||
| Proper motion (declination) | [mas/yr] | -5.79381035 (0.2) | -5.902411885 (0.4) | -5.794 (0.2) | -3.0 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.02 (0.009) | |||||||||
| H magnitude | 15.43 (0.01) | |||||||||
| K magnitude | 15.19 (0.01) | |||||||||
| u magnitude | 20.39 (0.05) | 20.43 (0.07) | 20.42 (0.07) | 20.42 | 20.43 (0.07) | |||||
| g magnitude | 19.65 (0.01) | 19.65 (0.01) | 19.66 (0.02) | 19.66 | 19.67 (0.02) | |||||
| r magnitude | 18.82 (0.01) | 18.84 (0.01) | 18.83 (0.02) | 18.83 | 18.83 (0.02) | |||||
| i magnitude | 17.91 (0.008) | 17.91 (0.008) | 17.91 (0.02) | 17.91 | 17.90 (0.02) | |||||
| z magnitude | 17.36 (0.01) | 17.38 (0.02) | 17.39 (0.02) | 17.39 | 17.37 (0.02) | |||||
| G magnitude | 18.49 (0.04) | 18.51 | 18.49 (0.003) | |||||||
| BP magnitude | 19.40 (0.04) | 19.31 | ||||||||
| RP magnitude | 17.49 (0.01) | 17.47 | ||||||||
| Pan g magnitude | 19.54 (0.006) | |||||||||
| Pan r magnitude | 18.82 (0.005) | |||||||||
| Pan i magnitude | 17.91 (0.003) | |||||||||
| Pan z magnitude | 17.46 (0.005) | |||||||||
| Pan y magnitude | 17.23 (0.008) | |||||||||
| E(B-V) | 0.110 | |||||||||
* 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.