All names: SDSS J221118.51+124909.9, SDSS J221118.51+124910.0, Gaia DR3 2728017816007589376, SDSSJ221118.51+124909.9, SDSS J221118.51+124909.96, Gaia EDR3 2728017816007589376, Gaia DR2 2728017816007589376
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 11 18.52 (0.2) | 22 11 18.51 | 22 11 18.51 | 22 11 18.52 (0.3) | 22 11 18.52 (0.2) | |||
| Declination | 12 49 09.90 (0.2) | 12 49 10.02 | 12 49 09.90 | 12 49 09.90 (0.3) | 12 49 09.99 (0.2) | |||
| Spectral type | sdB | sdB | sdB | |||||
| Effective temperature | [K] | 21187.0 (422) | ||||||
| log(g) | [cgs] | 6.00 (1) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | -0.15 (0.2) | -0.19 (0.3) | -0.19 (0.3) | ||||
| Distance | [pc] | |||||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -1.48092467 (0.2) | -1.248 (0.5) | -1.247811871 (0.5) | -1.481 (0.2) | |||
| Proper motion (declination) | [mas/yr] | -5.703960038 (0.2) | -5.282 (0.5) | -5.281880954 (0.5) | -5.704 (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 | 18.35 (0.02) | 18.35 (0.01) | 18.37 (0.02) | 18.35 (0.01) | ||||
| g magnitude | 18.38 (0.007) | 18.38 (0.007) | 18.40 (0.01) | 18.38 (0.007) | ||||
| r magnitude | 18.78 (0.01) | 18.77 (0.01) | 18.78 (0.01) | 18.77 (0.01) | ||||
| i magnitude | 19.06 (0.01) | 19.04 (0.01) | 19.03 (0.02) | 19.04 (0.01) | ||||
| z magnitude | 19.44 (0.07) | 19.42 (0.07) | 19.42 (0.07) | 19.43 (0.07) | ||||
| G magnitude | 18.60 (0.03) | 18.63 (0.003) | 18.63 | 18.60 (0.004) | ||||
| BP magnitude | 18.50 (0.03) | 18.47 (0.03) | 18.47 | |||||
| RP magnitude | 18.81 (0.06) | 18.80 (0.04) | 18.80 | |||||
| Pan g magnitude | 18.46 (0.006) | 18.46 (0.006) | ||||||
| Pan r magnitude | 18.78 (0.007) | 18.78 (0.007) | ||||||
| Pan i magnitude | 19.10 (0.006) | 19.10 (0.006) | ||||||
| Pan z magnitude | 19.29 (0.01) | 19.29 (0.01) | ||||||
| Pan y magnitude | 19.45 (0.07) | 19.45 (0.07) | ||||||
| E(B-V) | ||||||||
* 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.