All names: SDSS J223028.66-000731.5, 2MASS J22302867-0007313, SDSS J223028.67-000731.6, [BGK2006] J223028.67-000731.5, PSO J223028.656+000731.479, Gaia DR2 2630096616106785280
| Parameter | Unit | Pan-STARRS DR1 | Gaia DR2 | SDSS DR12 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|
| Right ascension | 22 30 28.66 (0.1) | 22 30 28.66 | 22 30 28.67 | 22 30 28.67 | ||
| Declination | -00 07 31.55 (0.07) | -00 07 31.48 | -00 07 31.40 | -00 07 31.51 | ||
| Spectral type | sd | SD_auto | ||||
| Effective temperature | [K] | 26471.0 (139) | ||||
| log(g) | [cgs] | 5.00 (0.002) | ||||
| Mass | [M☉] | |||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 0.14 (0.09) | ||||
| Distance | [pc] | 7111.60 (4776) | ||||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -2.7778185159 (0.2) | -1.0 | 2.3 | ||
| Proper motion (declination) | [mas/yr] | -6.714987518 (0.2) | -9.0 | -10.8 | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 16.20 | |||||
| V magnitude | ||||||
| R magnitude | 16.30 | |||||
| I magnitude | ||||||
| J magnitude | 16.69 | |||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 16.59 (0.007) | 16.61 | 16.59 (0.02) | |||
| g magnitude | 16.30 (0.004) | 16.35 | 16.33 (0.02) | |||
| r magnitude | 16.62 (0.006) | 16.61 | 16.61 (0.01) | |||
| i magnitude | 16.88 (0.006) | 16.86 | 16.87 (0.02) | |||
| z magnitude | 17.07 (0.01) | 17.06 | 17.06 (0.02) | |||
| G magnitude | 16.51 | |||||
| BP magnitude | 16.42 | |||||
| RP magnitude | 16.55 | |||||
| Pan g magnitude | 16.38 (0.004) | |||||
| Pan r magnitude | 16.65 (0.002) | |||||
| Pan i magnitude | 16.90 (0.003) | |||||
| Pan z magnitude | 17.08 (0.004) | |||||
| Pan y magnitude | 17.19 (0.005) |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.