All names: Gaia DR3 657986726300955520, TIC 21286985, SDSSJ083901.50+161148.0, 2MASS J08390151+1611483, [BGK2006] J083901.51+161148.0, GALEX J083901.4+161149, SDSS J083901.50+161148.0, Gaia DR2 657986726300955520
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 39 01.50 | 08 39 01.51 (0.05) | ||
| Declination | 16 11 48.00 | 16 11 48.04 (0.04) | ||
| 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] | 0.02 (0.1) | 0.17 (0.06) | |
| Distance | [pc] | 49261.08 (242665) | 5730.66 (2125) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.668 (0.2) | -0.409 (0.06) | |
| Proper motion (declination) | [mas/yr] | -6.057 (0.1) | -6.242 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.83 (0.1) | 16.83 (0.1) | ||
| H magnitude | 17.08 | |||
| K magnitude | 17.23 | |||
| u magnitude | 16.74 (0.007) | 16.74 (0.007) | ||
| g magnitude | 16.45 (0.004) | 16.45 (0.004) | ||
| r magnitude | 16.80 (0.005) | 16.80 (0.005) | ||
| i magnitude | 17.07 (0.006) | 17.07 (0.006) | ||
| z magnitude | 17.32 (0.01) | 17.32 (0.01) | ||
| G magnitude | 16.67 (0.001) | 16.64 (0.003) | ||
| BP magnitude | 16.53 (0.004) | |||
| RP magnitude | 16.74 (0.01) | |||
| Pan g magnitude | 16.52 (0.004) | |||
| Pan r magnitude | 16.81 (0.006) | |||
| Pan i magnitude | 17.08 (0.003) | |||
| Pan z magnitude | 17.31 (0.005) | |||
| Pan y magnitude | 17.42 (0.007) | |||
| E(B-V) | 0.031 | |||
* 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.