All names: Gaia DR3 6494992795056667648, LB 1535, TIC 355638102, EC 23507-5733, 2MASS J23532022-5716484, EC23507-5733, GALEX J235320.1-571648, Gaia DR2 6494992795056667648, UCAC4 164-209193
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 53 20.41 | 23 53 20.22 (0.03) | ||
| Declination | -57 16 48.04 | -57 16 48.38 (0.03) | ||
| 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] | 0.58 (0.05) | 0.64 (0.04) | |
| Distance | [pc] | 1719.99 (159) | 1573.56 (97) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -18.227 (0.08) | -18.274 (0.04) | |
| Proper motion (declination) | [mas/yr] | -38.518 (0.08) | -38.435 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.50 (0.09) | |||
| V magnitude | 15.74 (0.05) | |||
| R magnitude | 16.27 (0.2) | |||
| I magnitude | ||||
| J magnitude | 16.34 (0.1) | 16.34 (0.1) | ||
| H magnitude | 16.79 | |||
| K magnitude | 17.24 | |||
| u magnitude | ||||
| g magnitude | 15.50 (0.03) | |||
| r magnitude | 15.97 (0.06) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.72 (0.002) | 15.70 (0.003) | ||
| BP magnitude | 15.49 (0.008) | |||
| RP magnitude | 16.02 (0.004) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.011 | |||
* 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.