All names: GALEX J114450.1-232818, HE 1142-2311, Gaia DR3 3492333879424155520, 2MASS J11445014-2328184, Gaia DR2 3492333879424155520, EC11423-2311, TIC 52215924, UCAC4 333-066248, EC 11423-2311
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 11 44 50.19 | 11 44 50.15 (0.05) | ||
| Declination | -23 28 17.65 | -23 28 18.47 (0.04) | ||
| Spectral type | He-sdO | sdOHe | ||
| Effective temperature | [K] | 54718.0 (1000) | ||
| log(g) | [cgs] | 5.80 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.35 (0.1) | 0.30 (0.09) | |
| Distance | [pc] | 2866.97 (801) | 3350.08 (965) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.988 (0.2) | -4.296 (0.08) | |
| Proper motion (declination) | [mas/yr] | -6.629 (0.1) | -6.533 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.40 (0.07) | |||
| V magnitude | 15.52 (0.02) | |||
| R magnitude | 15.66 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.63 (0.07) | 15.63 (0.07) | ||
| H magnitude | 15.81 (0.1) | 15.81 (0.1) | ||
| K magnitude | 15.37 (0.2) | 15.37 (0.2) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.52 (0.001) | 15.51 (0.003) | ||
| BP magnitude | 15.36 (0.005) | |||
| RP magnitude | 15.64 (0.002) | |||
| Pan g magnitude | 15.40 (0.002) | |||
| Pan r magnitude | 15.72 (0.002) | |||
| Pan i magnitude | 15.98 (0.005) | |||
| Pan z magnitude | 16.18 (0.01) | |||
| Pan y magnitude | 16.30 (0.006) | |||
| 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.