All names: Gaia DR2 3660172199098643072, SDSS J141020.72+001854.9, PG1407+005, HE 1407+0033, [HMD92] 865-4, HIDDEN NAME PG 1407+005, TIC 420749729, GALEX J141020.6+001854, LB 721, PG 1407+006, 2MASS J14102068+0018547, uvby98 680140747, Gaia DR3 3660172199098643072
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 10 20.73 | 14 10 20.72 (0.05) | ||
| Declination | 00 18 54.60 | 00 18 54.85 (0.04) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 37309.0 (500) | ||
| log(g) | [cgs] | 5.54 (0.05) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.44 (0.1) | 0.41 (0.06) | |
| Distance | [pc] | 2267.57 (599) | 2444.39 (369) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.589 (0.1) | -4.142 (0.07) | |
| Proper motion (declination) | [mas/yr] | -4.567 (0.1) | -4.827 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.50 | |||
| V magnitude | 15.66 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.39 (0.1) | 16.27 (0.01) | ||
| H magnitude | 16.21 | 16.42 (0.03) | ||
| K magnitude | 15.77 | 16.54 (0.06) | ||
| u magnitude | 14.99 (0.004) | 15.00 (0.01) | ||
| g magnitude | 15.31 (0.003) | 15.38 (0.02) | ||
| r magnitude | 15.84 (0.004) | 15.85 (0.01) | ||
| i magnitude | 16.19 (0.004) | 16.20 (0.01) | ||
| z magnitude | 16.55 (0.009) | 16.56 (0.01) | ||
| G magnitude | 15.61 (0.002) | 15.59 (0.003) | ||
| BP magnitude | 15.41 (0.008) | |||
| RP magnitude | 15.89 (0.004) | |||
| Pan g magnitude | 15.41 (0.003) | |||
| Pan r magnitude | 15.90 (0.006) | |||
| Pan i magnitude | 16.23 (0.002) | |||
| Pan z magnitude | 16.51 (0.004) | |||
| Pan y magnitude | 16.68 (0.007) | |||
| E(B-V) | 0.027 | |||
* 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.