All names: TIC 386907279, SDSS J090853.19+185309.9, Gaia DR3 635524012982077568, 2MASS J09085319+1853099, GALEX J090853.2+185309, Gaia DR2 635524012982077568, PG0906+191, LB 9379, PG 0906+191
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 09 08 53.20 | 09 08 53.20 (0.04) | ||
| Declination | 18 53 10.31 | 18 53 10.04 (0.03) | ||
| Spectral type | sdB+MS | 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] | 0.19 (0.06) | 0.27 (0.04) | |
| Distance | [pc] | 5367.69 (1795) | 3756.57 (634) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.705 (0.1) | -1.51 (0.05) | |
| Proper motion (declination) | [mas/yr] | -5.781 (0.07) | -5.771 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.32 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.43 (0.04) | 15.43 (0.04) | ||
| H magnitude | 15.26 (0.09) | 15.26 (0.09) | ||
| K magnitude | 15.26 (0.1) | 15.26 (0.1) | ||
| u magnitude | 16.24 (0.006) | 16.24 (0.006) | ||
| g magnitude | 15.96 (0.004) | 15.96 (0.004) | ||
| r magnitude | 15.98 (0.004) | 15.98 (0.004) | ||
| i magnitude | 16.01 (0.004) | 16.01 (0.004) | ||
| z magnitude | 16.10 (0.007) | 16.10 (0.007) | ||
| G magnitude | 15.92 (0.0006) | 15.90 (0.003) | ||
| BP magnitude | 15.98 (0.004) | |||
| RP magnitude | 15.71 (0.002) | |||
| Pan g magnitude | 15.97 (0.003) | |||
| Pan r magnitude | 16.00 (0.003) | |||
| Pan i magnitude | 16.04 (0.002) | |||
| Pan z magnitude | 16.12 (0.004) | |||
| Pan y magnitude | 16.14 (0.006) | |||
| E(B-V) | 0.030 | |||
* 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.