All names: [HHD2009] SDSS J1222+0934, Gaia DR3 3905371156177362432, Gaia DR2 3905371156177362432, Gaia EDR3 3905371156177362432, SDSS J122208.40+093406.2, WIRED J122208.48+093406.2, WD 1219+098, TIC 389362547, SDSS J122208.48+093406.2, SDSS J122208.47+093406.2, 2MASS J12220847+0934061
| 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 | 12 22 08.46 (0.3) | 12 22 08.47 | 12 22 08.46 (0.4) | 12 22 08.48 | 12 22 08.48 (0.3) | 12 22 08.48 | 12 22 07.73 | 12 22 08.48 | |||
| Declination | 09 34 05.77 (0.3) | 09 34 06.24 | 09 34 05.79 (0.3) | 09 34 06.20 | 09 34 06.28 (0.3) | 09 34 06.27 | 09 34 04.08 | 09 34 06.21 | |||
| Spectral type | DA+K | DA+K | DA+M | DA dK | DA+M | ||||||
| Effective temperature | [K] | 30419.0 (1582) | 6300.0 (2) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 7.14 (0.4) | 7.45 (0.4) | 8.72 (2) | |||||||
| Mass | [M☉] | 0.34 (0.09) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 0.78 (0.4) | 0.91 (0.5) | 0.78 (0.4) | |||||||
| Distance | [pc] | 1280.32 (612) | 1093.58 (571) | 383.00 (35) | 1280.25 (612) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -16.42897584 (0.4) | -15.60256594 (1) | -16.429 (0.4) | -15.4 | ||||||
| Proper motion (declination) | [mas/yr] | -32.05622733 (0.3) | -32.51211544 (0.6) | -32.056 (0.3) | -33.6 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.43 (0.01) | ||||||||||
| H magnitude | 15.91 (0.01) | ||||||||||
| K magnitude | 15.69 (0.02) | ||||||||||
| u magnitude | 19.62 (0.04) | 19.53 | 19.54 (0.04) | 19.53 (0.04) | 19.53 | 19.59 (0.04) | |||||
| g magnitude | 19.08 (0.01) | 19.06 | 19.07 (0.01) | 19.06 (0.03) | 19.06 | 19.06 (0.03) | |||||
| r magnitude | 18.30 (0.008) | 18.29 | 18.30 (0.01) | 18.29 (0.03) | 18.29 | 18.30 (0.03) | |||||
| i magnitude | 17.83 (0.008) | 17.83 | 17.83 (0.01) | 17.83 (0.02) | 17.83 | 17.84 (0.02) | |||||
| z magnitude | 17.54 (0.01) | 17.61 | 17.60 (0.02) | 17.61 (0.03) | 17.61 | 17.58 (0.03) | |||||
| G magnitude | 18.36 (0.03) | 18.34 | 18.36 (0.004) | ||||||||
| BP magnitude | 18.85 (0.03) | 18.85 | |||||||||
| RP magnitude | 17.47 (0.01) | 17.49 | |||||||||
| Pan g magnitude | 18.99 (0.008) | ||||||||||
| Pan r magnitude | 18.29 (0.005) | ||||||||||
| Pan i magnitude | 17.86 (0.004) | ||||||||||
| Pan z magnitude | 17.63 (0.006) | ||||||||||
| Pan y magnitude | 17.47 (0.01) | ||||||||||
| E(B-V) | 0.026 | ||||||||||
* 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.