All names: SDSSJ084559.89-023929.0, 2MASS J08455990-0239284, LAMOST J084559.96-023929.6, Gaia DR3 3072185163322482816, TIC 1647346, Gaia EDR3 3072185163322482816, SDSS J084559.89-023929.0, GALEX J084559.9-023929, Gaia DR2 3072185163322482816
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 45 59.90 (0.04) | 08 45 59.90 | 08 45 59.90 (0.04) | ||
| Declination | -02 39 29.14 (0.03) | -02 39 29.09 | -02 39 29.07 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 32880.0 (124) | |||
| log(g) | [cgs] | 5.89 (0.03) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.57 (0.05) | 0.60 (0.08) | 0.57 (0.05) | |
| Distance | [pc] | 1752.23 (160) | 1665.83 (216) | 1752.23 (160) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 6.091 (0.06) | 6.142 (0.1) | 6.091 (0.06) | |
| Proper motion (declination) | [mas/yr] | -4.965 (0.04) | -4.897 (0.1) | -4.965 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.42 (0.1) | 16.42 (0.1) | |||
| H magnitude | 16.58 (0.3) | 16.58 (0.3) | |||
| K magnitude | 15.65 (0.3) | 15.65 (0.3) | |||
| u magnitude | 15.18 (0.004) | 15.18 (0.01) | |||
| g magnitude | 15.46 (0.003) | 15.49 (0.01) | |||
| r magnitude | 15.94 (0.004) | 15.96 (0.01) | |||
| i magnitude | 16.31 (0.004) | 16.30 (0.01) | |||
| z magnitude | 16.62 (0.01) | 16.64 (0.02) | |||
| G magnitude | 15.71 (0.003) | 15.72 (0.0008) | 15.71 (0.003) | ||
| BP magnitude | 15.56 (0.004) | 15.49 (0.006) | |||
| RP magnitude | 16.01 (0.005) | 16.00 (0.004) | |||
| Pan g magnitude | 15.54 (0.002) | ||||
| Pan r magnitude | 15.96 (0.002) | ||||
| Pan i magnitude | 16.32 (0.005) | ||||
| Pan z magnitude | 16.62 (0.01) | ||||
| Pan y magnitude | 16.79 (0.005) | ||||
| E(B-V) | 0.026 | ||||
* 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.