All names: TIC 468980287, WISEA J083412.30+071210.4, Gaia EDR3 595824702553000448, WISE J083412.30+071210.5, GALEXJ08342+0712, UCAC2 34278885, Gaia DR2 595824702553000448, LAMOST J083412.30+071210.3, GALEX J083412.3+071211, 2MASS J08341229+0712103, UCAC4 487-046769, GALEX J083412.3+071208, Gaia DR3 595824702553000448, 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.