All names: LAMOST J072222.66+385702.9, Gaia DR3 899990468228606208, GALEX J072222.5+385703, [SGR2010] J0722+3857, TIC 9884224, SDSS J072222.65+385702.9, WD 0718+390, Gaia DR2 899990468228606208, SDSS J072222.66+385702.9, Gaia EDR3 899990468228606208, 2MASS J07222266+3857029
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 22 22.64 (0.06) | 07 22 22.66 | 07 22 22.64 (0.06) | 07 22 22.66 (0.06) | 07 22 22.51 | |||
| Declination | 38 57 02.91 (0.05) | 38 57 02.92 | 38 57 02.91 (0.07) | 38 57 02.88 (0.05) | 38 56 56.40 | |||
| Spectral type | D+dM1 | DA:+M1 | ||||||
| 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] | 2.91 (0.06) | 3.21 (0.06) | 2.91 (0.06) | ||||
| Distance | [pc] | 343.61 (7) | 311.42 (5) | 343.62 (7) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -16.49601504 (0.07) | -15.93878447 (0.1) | -16.496 (0.07) | ||||
| Proper motion (declination) | [mas/yr] | 2.027987095 (0.06) | 1.063195411 (0.1) | 2.028 (0.07) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 13.89 (0.03) | |||||||
| H magnitude | 13.18 (0.03) | |||||||
| K magnitude | 13.01 (0.03) | |||||||
| u magnitude | 19.20 (0.02) | 19.21 (0.03) | 19.22 | |||||
| g magnitude | 17.53 (0.005) | 17.54 (0.005) | 17.53 | |||||
| r magnitude | 16.27 (0.004) | 16.28 (0.004) | 16.28 | |||||
| i magnitude | 15.52 (0.004) | 15.53 (0.004) | 15.53 | |||||
| z magnitude | 15.09 (0.005) | 15.07 (0.005) | 15.07 | |||||
| G magnitude | 16.06 (0.007) | 16.08 | 16.06 (0.003) | |||||
| BP magnitude | 16.99 (0.007) | 17.00 | ||||||
| RP magnitude | 15.10 (0.002) | 15.11 | ||||||
| Pan g magnitude | 17.29 (0.004) | |||||||
| Pan r magnitude | 16.22 (0.004) | |||||||
| Pan i magnitude | 15.48 (0.002) | |||||||
| Pan z magnitude | 15.17 (0.005) | |||||||
| Pan y magnitude | 14.97 (0.005) | |||||||
| E(B-V) | 0.027 | |||||||
* 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.