All names: TIC 281286488, GALEX J100400.7-193746, GALEXJ10040-1937, EC 10016-1923, 2MASS J10040085-1937460, Gaia DR2 5670767847736319232, Gaia DR3 5670767847736319232, UCAC4 352-058018
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 10 04 00.78 | 10 04 00.87 (0.05) | ||
| Declination | -19 37 46.61 | -19 37 46.14 (0.06) | ||
| Spectral type | He-sdO | sdOHe | ||
| 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] | 0.38 (0.09) | 0.38 (0.06) | |
| Distance | [pc] | 2645.50 (611) | 2642.01 (388) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.116 (0.1) | -0.157 (0.06) | |
| Proper motion (declination) | [mas/yr] | 4.101 (0.1) | 3.895 (0.07) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.11 (0.06) | |||
| V magnitude | 15.25 (0.04) | |||
| R magnitude | 15.37 (0.09) | |||
| I magnitude | ||||
| J magnitude | 15.98 (0.09) | 15.98 (0.09) | ||
| H magnitude | 16.03 (0.1) | 16.03 (0.1) | ||
| K magnitude | 16.01 | |||
| u magnitude | ||||
| g magnitude | 15.07 (0.02) | |||
| r magnitude | 15.59 (0.07) | |||
| i magnitude | 16.13 (0.01) | |||
| z magnitude | ||||
| G magnitude | 15.24 (0.002) | 15.23 (0.003) | ||
| BP magnitude | 14.98 (0.02) | |||
| RP magnitude | 15.53 (0.005) | |||
| Pan g magnitude | 15.08 (0.007) | |||
| Pan r magnitude | 15.50 (0.002) | |||
| Pan i magnitude | 15.87 (0.001) | |||
| Pan z magnitude | 16.15 (0.002) | |||
| Pan y magnitude | 16.33 (0.006) | |||
| 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.