All names: UBV M 43304, uvby98 620001026, GSC 00050-00928, Gaia DR3 2503706418759709184, HS 0237+0342, TIC 328179553, 2MASS J02400439+0355422, CSI+03-02375, FB 26, LAMOST J024004.39+035542.3, Feige 26, CHSS 3709, PLX 539.01, Feige26, GEN# +6.20001026, LAMOST J024004.38+035542.2, Gaia DR2 2503706418759709184
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 40 04.36 | 02 40 04.40 (0.04) | ||
| Declination | 03 55 42.60 | 03 55 42.25 (0.03) | ||
| Spectral type | He-sdO | sdO | ||
| Effective temperature | [K] | 65870.0 (1270) | ||
| log(g) | [cgs] | 5.19 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.33 (0.1) | 0.55 (0.05) | |
| Distance | [pc] | 3021.15 (898) | 1808.32 (154) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.433 (0.1) | 4.522 (0.04) | |
| Proper motion (declination) | [mas/yr] | 0.958 (0.1) | 1.207 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.75 | |||
| V magnitude | 14.10 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.79 (0.04) | 14.79 (0.04) | ||
| H magnitude | 14.85 (0.06) | 14.85 (0.06) | ||
| K magnitude | 14.92 (0.1) | 14.92 (0.1) | ||
| u magnitude | 13.35 (0.003) | |||
| g magnitude | ||||
| r magnitude | 14.23 (0.004) | |||
| i magnitude | 14.62 (0.004) | |||
| z magnitude | 14.94 (0.005) | |||
| G magnitude | 13.98 (0.001) | 13.97 (0.003) | ||
| BP magnitude | 13.74 (0.01) | |||
| RP magnitude | 14.28 (0.003) | |||
| Pan g magnitude | 13.81 (0.002) | |||
| Pan r magnitude | 14.25 (0.004) | |||
| Pan i magnitude | 14.62 (0.003) | |||
| Pan z magnitude | 14.90 (0.002) | |||
| Pan y magnitude | 15.09 (0.005) | |||
| E(B-V) | 0.043 | |||
* 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.