All names: 2MASS J14405282-0308526, Gaia DR3 3648191164488514688, GALEX J144052.8-030852, V* V588 Vir, UCAC2 30709216, PG 1438-029, PG1438-029, SDSS J144052.82-030852.6, UCAC4 435-060189, LAMOST J144052.82-030852.6, Gaia DR2 3648191164488514688, TIC 272266194
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 40 52.79 | 14 40 52.83 (0.04) | ||
| Declination | -03 08 50.47 | -03 08 52.66 (0.03) | ||
| Spectral type | sdB+dM | sdBHe0 | ||
| Effective temperature | [K] | 29280.0 (240) | ||
| log(g) | [cgs] | 5.41 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.33 (0.06) | 1.27 (0.04) | |
| Distance | [pc] | 749.85 (33) | 790.01 (23) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 6.857 (0.1) | 7.171 (0.05) | |
| Proper motion (declination) | [mas/yr] | -39.698 (0.09) | -39.875 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.64 (0.04) | |||
| V magnitude | 13.79 (0.04) | |||
| R magnitude | 14.23 (0.08) | |||
| I magnitude | ||||
| J magnitude | 14.17 (0.03) | 14.17 (0.03) | ||
| H magnitude | 14.24 (0.05) | 14.24 (0.05) | ||
| K magnitude | 14.20 (0.07) | 14.20 (0.07) | ||
| u magnitude | 13.50 (0.003) | |||
| g magnitude | ||||
| r magnitude | 14.03 (0.004) | |||
| i magnitude | 14.31 (0.004) | |||
| z magnitude | 14.59 (0.004) | |||
| G magnitude | 13.82 (0.001) | 13.79 (0.003) | ||
| BP magnitude | 13.67 (0.007) | |||
| RP magnitude | 13.99 (0.006) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | 16.38 (0) | |||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.050 | |||
* 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.