All names: USNO-B1.0 0776-00354867, 2MASS J14240877-1220203, TIC 335110838, PG 1421-121, UCAC4 389-060204, PG1421-121, WISE J142408.75-122020.4, HE 1421-1206, WISEA J142408.74-122020.4, UCAC2 27490689, Gaia DR2 6303502330999351040, GALEX J142408.8-122018, Gaia DR3 6303502330999351040
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 24 08.80 | 14 24 08.77 (0.05) | ||
| Declination | -12 20 21.50 | -12 20 20.22 (0.05) | ||
| Spectral type | sdB+WD | sdB | ||
| Effective temperature | [K] | 29570.0 (500) | ||
| log(g) | [cgs] | 5.53 (0.05) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.43 (0.2) | 0.61 (0.07) | |
| Distance | [pc] | 2322.34 (1046) | 1652.07 (204) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -10.294 (0.2) | -10.006 (0.07) | |
| Proper motion (declination) | [mas/yr] | -5.411 (0.2) | -5.509 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.40 | |||
| V magnitude | ||||
| R magnitude | 15.77 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.89 (0.07) | 15.89 (0.07) | ||
| H magnitude | 15.87 (0.2) | 15.87 (0.2) | ||
| K magnitude | 16.27 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.47 (0.002) | 15.45 (0.003) | ||
| BP magnitude | 15.32 (0.01) | |||
| RP magnitude | 15.65 (0.005) | |||
| Pan g magnitude | 15.31 (0.006) | |||
| Pan r magnitude | 15.67 (0.003) | |||
| Pan i magnitude | 15.97 (0.006) | |||
| Pan z magnitude | 16.23 (0.007) | |||
| Pan y magnitude | 16.36 (0.008) | |||
| E(B-V) | 0.073 | |||
* 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.