All names: TIC 428896069, UCAC4 359-071114, Gaia DR2 6257981106505278080, DENIS J152332.3-181726, WISEA J152332.29-181726.1, GALEX J152332.2-181726, 2MASS J15233229-1817261, GALEXJ15235-1817, Gaia DR3 6257981106505278080, WISE J152332.30-181726.1
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 23 32.21 | 15 23 32.29 (0.03) | ||
| Declination | -18 17 26.25 | -18 17 26.13 (0.03) | ||
| Spectral type | He-sdO | sdOC9VIIHe39 | ||
| 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] | 0.83 (0.05) | 1.00 (0.04) | |
| Distance | [pc] | 1209.34 (79) | 1000.90 (38) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.059 (0.1) | 1.92 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.661 (0.08) | -3.501 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.75 (0.02) | |||
| V magnitude | 13.94 (0.01) | |||
| R magnitude | 14.37 (0.2) | |||
| I magnitude | 14.08 (0.03) | |||
| J magnitude | 14.43 (0.03) | 14.43 (0.03) | ||
| H magnitude | 14.57 (0.06) | 14.57 (0.06) | ||
| K magnitude | 14.60 (0.09) | 14.60 (0.09) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | 14.12 (0.01) | |||
| i magnitude | 14.44 (0.01) | |||
| z magnitude | ||||
| G magnitude | 13.90 (0.0007) | 13.88 (0.003) | ||
| BP magnitude | 13.71 (0.009) | |||
| RP magnitude | 14.10 (0.002) | |||
| Pan g magnitude | 13.78 (0.01) | |||
| Pan r magnitude | 14.13 (0.003) | |||
| Pan i magnitude | 14.45 (0.004) | |||
| Pan z magnitude | 14.70 (0.004) | |||
| Pan y magnitude | 14.86 (0.003) | |||
| E(B-V) | 0.080 | |||
* 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.