All names: GALEX J114454.4-290911, Gaia DR3 3480643115883081344, EC11423-2852, Gaia DR2 3480643115883081344, UCAC4 305-068065, EC 11423-2852, Gaia EDR3 3480643115883081344
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 11 44 54.33 (0.04) | 11 44 54.22 | 11 44 54.34 (0.04) | ||
| Declination | -29 09 10.97 (0.03) | -29 09 10.71 | -29 09 11.02 (0.03) | ||
| Spectral type | sdB | sdB | |||
| 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] | 0.40 (0.05) | 0.42 (0.08) | 0.40 (0.05) | |
| Distance | [pc] | 2481.39 (323) | 2388.34 (473) | 2481.39 (323) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -9.689 (0.06) | -9.495 (0.1) | -9.689 (0.06) | |
| Proper motion (declination) | [mas/yr] | 2.984 (0.04) | 3.04 (0.08) | 2.984 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.17 (0.1) | ||||
| V magnitude | 16.32 (0.2) | ||||
| R magnitude | 15.65 (0.8) | ||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | |||||
| g magnitude | 16.13 (0.01) | ||||
| r magnitude | 16.60 (0.01) | ||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 16.25 (0.003) | 16.28 (0.001) | 16.25 (0.003) | ||
| BP magnitude | 16.13 (0.004) | 16.09 (0.005) | |||
| RP magnitude | 16.50 (0.006) | 16.50 (0.003) | |||
| Pan g magnitude | 16.09 (0.006) | ||||
| Pan r magnitude | 16.48 (0.002) | ||||
| Pan i magnitude | 16.83 (0.003) | ||||
| Pan z magnitude | 17.09 (0.004) | ||||
| Pan y magnitude | 17.24 (0.009) | ||||
| E(B-V) | 0.030 | ||||
* 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.