All names: GALEX J144014.1+230735, TIC 287032059, PG 1437+233, Gaia DR2 1242599704488616704, LAMOST J144014.15+230735.9, CSI+23-14379, uvby98 610070780, Ton 780, PG1437+233, FB 154, UBV 12792, 2MASS J14401408+2307349, GEN# +6.10070780, SDSS J144014.08+230734.8, Gaia EDR3 1242599704488616704, UBV M 43169, Gaia DR3 1242599704488616704
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 14 40 14.07 (0.02) | 14 40 14.11 | 14 40 14.08 (0.02) | ||
| Declination | 23 07 34.87 (0.03) | 23 07 34.91 | 23 07 34.90 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 31470.0 (138) | |||
| log(g) | [cgs] | 5.99 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.67 (0.04) | 0.65 (0.05) | 0.67 (0.04) | |
| Distance | [pc] | 1495.89 (79) | 1526.95 (113) | 1495.89 (79) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -8.852 (0.03) | -8.94 (0.09) | -8.852 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.056 (0.04) | -1.779 (0.09) | -2.056 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.67 | ||||
| V magnitude | 14.91 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.49 (0.06) | 15.49 (0.06) | |||
| H magnitude | 15.52 (0.1) | 15.52 (0.1) | |||
| K magnitude | 15.92 (0.2) | 15.92 (0.2) | |||
| u magnitude | 14.44 (0.004) | 14.44 (0.01) | |||
| g magnitude | 14.62 (0.003) | 14.64 (0.01) | |||
| r magnitude | 15.10 (0.004) | 15.09 (0.02) | |||
| i magnitude | 15.45 (0.004) | 15.45 (0.01) | |||
| z magnitude | 15.77 (0.006) | 15.77 (0.02) | |||
| G magnitude | 14.91 (0.003) | 14.93 (0.0007) | 14.91 (0.003) | ||
| BP magnitude | 14.78 (0.004) | 14.74 (0.007) | |||
| RP magnitude | 15.17 (0.004) | 15.17 (0.003) | |||
| Pan g magnitude | 14.71 (0.004) | ||||
| Pan r magnitude | 15.13 (0.003) | ||||
| Pan i magnitude | 15.47 (0.007) | ||||
| Pan z magnitude | 15.74 (0.003) | ||||
| Pan y magnitude | 15.92 (0.004) | ||||
| 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.