All names: Gaia EDR3 3063581068223451904, 2MASS J08092826-0810188, UCAC4 410-042412, SDSSJ080928.25-081018.7, Gaia DR3 3063581068223451904, TIC 170463675, SDSS J080928.25-081018.7, Gaia DR2 3063581068223451904
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 09 28.26 (0.03) | 08 09 28.25 | 08 09 28.26 (0.03) | ||
| Declination | -08 10 18.73 (0.03) | -08 10 18.70 | -08 10 18.69 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.01 (0.04) | 1.02 (0.05) | 1.01 (0.04) | |
| Distance | [pc] | 990.59 (40) | 983.48 (51) | 990.59 (40) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.189 (0.04) | -0.237 (0.09) | -0.189 (0.04) | |
| Proper motion (declination) | [mas/yr] | -2.821 (0.03) | -2.694 (0.07) | -2.821 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.36 (0.03) | ||||
| V magnitude | 14.57 (0.02) | ||||
| R magnitude | 14.93 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.19 (0.04) | 15.19 (0.04) | |||
| H magnitude | 15.28 (0.08) | 15.28 (0.08) | |||
| K magnitude | 15.18 (0.2) | 15.18 (0.2) | |||
| u magnitude | 13.98 (0.003) | 13.98 (0.003) | |||
| g magnitude | 14.22 (0.003) | 14.34 (0.02) | |||
| r magnitude | 14.72 (0.003) | 14.76 (0.05) | |||
| i magnitude | 15.06 (0.003) | 15.12 (0.2) | |||
| z magnitude | 15.41 (0.005) | 15.41 (0.005) | |||
| G magnitude | 14.51 (0.003) | 14.52 (0.0008) | 14.51 (0.003) | ||
| BP magnitude | 14.37 (0.003) | 14.31 (0.009) | |||
| RP magnitude | 14.77 (0.004) | 14.77 (0.003) | |||
| Pan g magnitude | 14.35 (0.002) | ||||
| Pan r magnitude | 14.77 (0.005) | ||||
| Pan i magnitude | 15.12 (0.002) | ||||
| Pan z magnitude | 15.38 (0.001) | ||||
| Pan y magnitude | 15.56 (0.007) | ||||
| E(B-V) | 0.063 | ||||
* 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.