All names: TIC 466310972, EC 20221-6249, GALEX J202630.0-624005, 2MASS J20263011-6240070, Gaia DR3 6429967711751930368, Gaia DR2 6429967711751930368, GALEXJ20265-6240, UCAC4 137-175275, WISE J202630.09-624007.0
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 26 30.05 | 20 26 30.13 (0.03) | ||
| Declination | -62 40 05.64 | -62 40 07.06 (0.05) | ||
| Spectral type | He-sdO | sdOC9.5VIIHe39 | ||
| 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] | 0.25 (0.1) | 0.37 (0.07) | |
| Distance | [pc] | 4068.35 (1801) | 2679.53 (468) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 7.018 (0.1) | 6.597 (0.05) | |
| Proper motion (declination) | [mas/yr] | -16.643 (0.2) | -16.006 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.92 | |||
| V magnitude | 14.12 | |||
| R magnitude | 14.44 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.40 (0.03) | 14.40 (0.03) | ||
| H magnitude | 14.37 (0.05) | 14.37 (0.05) | ||
| K magnitude | 14.40 (0.07) | 14.40 (0.07) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.12 (0.001) | 14.16 (0.003) | ||
| BP magnitude | 13.91 (0.006) | |||
| RP magnitude | 14.24 (0.001) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.032 | |||
* 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.