All names: GALEX J175513.2-622223, 2MASS J17551306-6222255, UCAC4 139-178111, GALEXJ17552-6222, Gaia DR3 5911044299855315200, TIC 380590152, Gaia DR2 5911044299855315200, UCAC2 4439547, DENIS J175513.0-622225
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 55 13.02 | 17 55 13.07 (0.02) | ||
| Declination | -62 22 25.72 | -62 22 25.54 (0.02) | ||
| Spectral type | sdO | sdO | ||
| 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] | 0.18 (0.05) | 0.29 (0.04) | |
| Distance | [pc] | 5602.24 (1707) | 3449.47 (437) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -6.357 (0.06) | -6.448 (0.02) | |
| Proper motion (declination) | [mas/yr] | -17.444 (0.06) | -17.227 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.34 (0.02) | |||
| V magnitude | 14.47 (0.03) | |||
| R magnitude | 14.90 (0.1) | |||
| I magnitude | 14.78 (0.03) | |||
| J magnitude | 14.92 (0.04) | 14.92 (0.04) | ||
| H magnitude | 15.12 (0.09) | 15.12 (0.09) | ||
| K magnitude | 15.03 (0.1) | 15.03 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.27 (0.01) | |||
| r magnitude | 14.58 (0.01) | |||
| i magnitude | 14.77 (0.04) | |||
| z magnitude | ||||
| G magnitude | 14.45 (0.0006) | 14.43 (0.003) | ||
| BP magnitude | 14.24 (0.007) | |||
| RP magnitude | 14.66 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.078 | |||
* 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.