All names: SDSS J082239.40+114142.7, GALEX J082239.4+114142, Gaia DR3 649241653194644352, Gaia EDR3 649241653194644352, Gaia DR2 649241653194644352, SDSS J082239.41+114142.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 22 39.40 (0.3) | 08 22 39.41 | 08 22 39.40 (0.3) | 08 22 39.41 (0.3) | 08 22 39.41 | |||
| Declination | 11 41 42.71 (0.2) | 11 41 42.74 | 11 41 42.71 (0.2) | 11 41 42.85 (0.2) | 11 41 42.75 | |||
| Spectral type | DAH+M | DAHM: | ||||||
| Effective temperature | [K] | 21176.0 (480) | ||||||
| log(g) | [cgs] | 7.03 (0.1) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.85 (0.4) | 0.92 (0.4) | 0.85 (0.4) | ||||
| Distance | [pc] | 1172.59 (518) | 1089.24 (440) | 1172.61 (518) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -5.656297327 (0.3) | -5.060512884 (0.6) | -5.656 (0.3) | ||||
| Proper motion (declination) | [mas/yr] | -9.077616551 (0.2) | -8.672257845 (0.4) | -9.078 (0.2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 18.90 (0.02) | 18.91 (0.02) | 18.90 (0.02) | |||||
| g magnitude | 18.85 (0.009) | 18.85 (0.009) | 18.88 (0.02) | |||||
| r magnitude | 19.16 (0.01) | 19.16 (0.01) | 19.17 (0.02) | |||||
| i magnitude | 19.39 (0.02) | 19.39 (0.02) | 19.40 (0.02) | |||||
| z magnitude | 19.53 (0.06) | 19.53 (0.06) | 19.53 (0.06) | |||||
| G magnitude | 19.00 (0.03) | 19.06 | 19.00 (0.005) | |||||
| BP magnitude | 19.01 (0.03) | 18.92 | ||||||
| RP magnitude | 19.17 (0.06) | 19.10 | ||||||
| Pan g magnitude | 18.89 (0.01) | |||||||
| Pan r magnitude | 19.18 (0.02) | |||||||
| Pan i magnitude | 19.44 (0.02) | |||||||
| Pan z magnitude | 19.52 (0.04) | |||||||
| Pan y magnitude | 19.56 (0.05) | |||||||
| E(B-V) | 0.028 | |||||||
* 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.