All names: SBC9 3409, Gaia EDR3 1888922223031933568, SDSS J224307.59+312239.1, Gaia DR3 1888922223031933568, GALEX J224307.5+312240, WD 2240+311, TIC 10664194, Gaia DR2 1888922223031933568, [SGR2010] J2243+3122, 2MASS J22430759+3122392
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 43 07.60 (0.07) | 22 43 07.60 | 22 43 07.60 (0.1) | 22 43 07.60 | 22 43 07.59 (0.07) | 22 43 07.22 | |||
| Declination | 31 22 38.99 (0.09) | 31 22 39.08 | 31 22 38.99 (0.1) | 31 22 39.18 | 31 22 39.22 (0.09) | 31 22 38.64 | |||
| Spectral type | DC+M | DC+M5 | DC+M5 | ||||||
| Effective temperature | [K] | ||||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 5.82 (0.1) | 6.00 (0.2) | 5.82 (0.1) | |||||
| Distance | [pc] | 171.68 (4) | 166.78 (5) | 171.68 (4) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 3.506755664 (0.09) | 3.3548895 (0.3) | 3.507 (0.09) | |||||
| Proper motion (declination) | [mas/yr] | -14.69366052 (0.1) | -14.59962018 (0.3) | -14.694 (0.1) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | yes | |||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 14.70 (0.03) | ||||||||
| H magnitude | 14.07 (0.03) | ||||||||
| K magnitude | 13.91 (0.05) | ||||||||
| u magnitude | 20.56 (0.06) | 20.76 | 20.76 (0.1) | 20.76 | |||||
| g magnitude | 19.56 (0.01) | 19.59 | 19.58 (0.01) | 19.58 | |||||
| r magnitude | 18.69 (0.01) | 18.69 | 18.68 (0.01) | 18.68 | |||||
| i magnitude | 17.31 (0.006) | 17.28 | 17.28 (0.006) | 17.28 | |||||
| z magnitude | 16.30 (0.007) | 16.26 | 16.26 (0.008) | 16.26 | |||||
| G magnitude | 17.86 (0.03) | 17.90 | 17.86 (0.003) | ||||||
| BP magnitude | 19.28 (0.03) | 19.26 | |||||||
| RP magnitude | 16.64 (0.008) | 16.64 | |||||||
| Pan g magnitude | 19.43 (0.02) | ||||||||
| Pan r magnitude | 18.63 (0.008) | ||||||||
| Pan i magnitude | 17.24 (0.01) | ||||||||
| Pan z magnitude | 16.40 (0.005) | ||||||||
| Pan y magnitude | 16.03 (0.01) | ||||||||
| E(B-V) | 0.029 | ||||||||
* 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.