All names: 2MASS J11391022-2520555, UCAC2 21541852, TIC 14717912, UCAC4 324-064739, Gaia DR3 3485687950109280896, EC11366-2504, GALEX J113910.3-252054, EC 11366-2504, HE 1136-2504, Gaia DR2 3485687950109280896
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 11 39 10.12 | 11 39 10.22 (0.03) | ||
| Declination | -25 20 55.58 | -25 20 55.56 (0.02) | ||
| Spectral type | He-sdO | sdOHe | ||
| Effective temperature | [K] | 41381.0 (1000) | ||
| log(g) | [cgs] | 5.84 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.87 (0.06) | 0.85 (0.04) | |
| Distance | [pc] | 1148.24 (75) | 1171.92 (53) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.716 (0.1) | -5.708 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.27 (0.06) | -6.4 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.89 (0.02) | |||
| V magnitude | 14.10 (0.01) | |||
| R magnitude | 14.67 (0.2) | |||
| I magnitude | ||||
| J magnitude | 14.76 (0.04) | 14.76 (0.04) | ||
| H magnitude | 15.02 (0.08) | 15.02 (0.08) | ||
| K magnitude | 15.17 (0.1) | 15.17 (0.1) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.07 (0.0005) | 14.06 (0.003) | ||
| BP magnitude | 13.85 (0.007) | |||
| RP magnitude | 14.35 (0.001) | |||
| Pan g magnitude | 13.90 (0.002) | |||
| Pan r magnitude | 14.32 (0.002) | |||
| Pan i magnitude | 14.69 (0.002) | |||
| Pan z magnitude | 14.99 (0.003) | |||
| Pan y magnitude | 15.17 (0.005) | |||
| E(B-V) | 0.028 | |||
* 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.