All names: EC 11363-1641, HE1136-1641, HE 1136-1641, 2MASS J11385450-1658123, WISE J113854.52-165812.8, GALEX J113854.5-165810, UCAC4 366-059005, Gaia DR2 3547508266258783104, WISEA J113854.52-165812.2, Gaia DR3 3547508266258783104, TIC 40534164
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 11 38 54.62 | 11 38 54.51 (0.04) | ||
| Declination | -16 58 13.40 | -16 58 12.31 (0.03) | ||
| Spectral type | He-sdO | sdOHe | ||
| Effective temperature | [K] | 44646.0 (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] | 0.42 (0.06) | 0.36 (0.05) | |
| Distance | [pc] | 2369.67 (332) | 2757.10 (347) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -9.581 (0.1) | -9.531 (0.05) | |
| Proper motion (declination) | [mas/yr] | -6.369 (0.07) | -6.493 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.16 (0.08) | |||
| V magnitude | 15.43 (0.05) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.89 (0.09) | 15.89 (0.09) | ||
| H magnitude | 16.09 (0.2) | 16.09 (0.2) | ||
| K magnitude | 16.31 | |||
| u magnitude | ||||
| g magnitude | 15.12 (0.01) | |||
| r magnitude | 15.57 (0.1) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.35 (0.0007) | 15.33 (0.003) | ||
| BP magnitude | 15.12 (0.006) | |||
| RP magnitude | 15.63 (0.003) | |||
| Pan g magnitude | 15.18 (0.003) | |||
| Pan r magnitude | 15.59 (0.003) | |||
| Pan i magnitude | 15.96 (0.003) | |||
| Pan z magnitude | 16.25 (0.003) | |||
| Pan y magnitude | 16.44 (0.009) | |||
| E(B-V) | 0.031 | |||
* 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.