All names: Gaia DR3 3163565604772130560, Gaia DR2 3163565604772130560, UCAC4 518-041821, GALEX J072845.2+132627, LAMOSTJ072845.27+132627.0, LAMOST J072845.27+132626.9, 2MASS J07284524+1326270
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 28 45.27 | 07 28 45.27 (0.04) | ||
| Declination | 13 26 27.00 | 13 26 27.05 (0.04) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 27930.0 (480) | ||
| log(g) | [cgs] | 5.47 (0.07) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.42 (0.07) | 0.56 (0.05) | |
| Distance | [pc] | 2380.95 (375) | 1798.24 (159) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.206 (0.1) | -0.002 (0.06) | |
| Proper motion (declination) | [mas/yr] | -4.566 (0.1) | -4.586 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | 15.66 (0.2) | |||
| I magnitude | ||||
| J magnitude | 16.42 (0.1) | 16.42 (0.1) | ||
| H magnitude | 16.00 (0.2) | 16.00 (0.2) | ||
| K magnitude | 16.11 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.67 (0.002) | 15.65 (0.003) | ||
| BP magnitude | 15.50 (0.01) | |||
| RP magnitude | 15.82 (0.01) | |||
| Pan g magnitude | 15.50 (0.006) | |||
| Pan r magnitude | 15.86 (0.003) | |||
| Pan i magnitude | 16.10 (0.001) | |||
| Pan z magnitude | 16.35 (0.007) | |||
| Pan y magnitude | 16.56 (0.01) | |||
| E(B-V) | 0.048 | |||
* 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.