All names: 2MASS J07235900+0429568, LAMOSTJ072359.00+042956.6, Gaia DR2 3139698956841267456, WISE J072359.00+042956.7, Gaia DR3 3139698956841267456, LAMOST J072359.00+042956.6, UCAC4 473-032533
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 23 59.00 | 07 23 59.00 (0.04) | ||
| Declination | 04 29 56.67 | 04 29 56.89 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 29850.0 (60) | ||
| log(g) | [cgs] | 5.25 (0.04) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.53 (0.06) | 0.51 (0.04) | |
| Distance | [pc] | 1887.15 (197) | 1975.11 (169) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.476 (0.1) | -0.091 (0.05) | |
| Proper motion (declination) | [mas/yr] | -14.781 (0.08) | -14.522 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.38 (0.08) | |||
| V magnitude | 15.44 (0.04) | |||
| R magnitude | 15.61 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.05 (0.04) | 15.05 (0.04) | ||
| H magnitude | 14.70 (0.06) | 14.70 (0.06) | ||
| K magnitude | 14.83 (0.1) | 14.83 (0.1) | ||
| u magnitude | ||||
| g magnitude | 15.39 (0.07) | |||
| r magnitude | 15.54 (0.03) | |||
| i magnitude | 15.62 (0.01) | |||
| z magnitude | ||||
| G magnitude | 15.40 (0.0008) | 15.38 (0.003) | ||
| BP magnitude | 15.34 (0.01) | |||
| RP magnitude | 15.32 (0.002) | |||
| Pan g magnitude | 15.38 (0.0006) | |||
| Pan r magnitude | 15.53 (0.002) | |||
| Pan i magnitude | 15.67 (0.005) | |||
| Pan z magnitude | 15.78 (0.002) | |||
| Pan y magnitude | 15.81 (0.006) | |||
| E(B-V) | 0.070 | |||
* 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.