All names: 2MASS J08341229+0712103, Gaia DR3 595824702553000448, Gaia DR2 595824702553000448, TIC 468980287, LAMOST J083412.30+071210.3, UCAC2 34278885, UCAC4 487-046769, GALEX J083412.3+071211, GALEX J083412.3+071208, Gaia EDR3 595824702553000448, GALEXJ08342+0712, WISEA J083412.30+071210.4, WISE J083412.30+071210.5, SDSS J083412.30+071210.3
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 34 12.31 (0.03) | 08 34 12.31 | 08 34 12.31 (0.03) | ||
| Declination | 07 12 10.25 (0.02) | 07 12 10.48 | 07 12 10.37 (0.02) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 29870.0 (560) | |||
| log(g) | [cgs] | 5.56 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.91 (0.04) | 0.85 (0.06) | 0.91 (0.04) | |
| Distance | [pc] | 1102.05 (49) | 1169.59 (86) | 1102.05 (49) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.777 (0.04) | -1.909 (0.1) | -1.777 (0.04) | |
| Proper motion (declination) | [mas/yr] | -7.157 (0.03) | -7.052 (0.07) | -7.157 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.51 (0.02) | ||||
| V magnitude | 14.70 (0.04) | ||||
| R magnitude | 15.07 (0.04) | ||||
| I magnitude | |||||
| J magnitude | 15.32 (0.05) | 15.29 (0.004) | |||
| H magnitude | 15.44 (0.1) | 15.40 (0.009) | |||
| K magnitude | 15.38 (0.1) | 15.48 (0.01) | |||
| u magnitude | 14.24 (0.004) | 14.21 (0.02) | |||
| g magnitude | 14.40 (0.004) | 14.42 (0.01) | |||
| r magnitude | 14.89 (0.004) | 14.89 (0.01) | |||
| i magnitude | 15.24 (0.005) | 15.26 (0.01) | |||
| z magnitude | 15.54 (0.006) | 15.54 (0.02) | |||
| G magnitude | 14.66 (0.003) | 14.68 (0.0007) | 14.66 (0.003) | ||
| BP magnitude | 14.52 (0.003) | 14.48 (0.009) | |||
| RP magnitude | 14.93 (0.004) | 14.93 (0.003) | |||
| Pan g magnitude | 14.49 (0.004) | ||||
| Pan r magnitude | 14.90 (0.002) | ||||
| Pan i magnitude | 15.26 (0.003) | ||||
| Pan z magnitude | 15.54 (0.004) | ||||
| Pan y magnitude | 15.71 (0.006) | ||||
| E(B-V) | 0.028 | ||||
* 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.