All names: 2MASS J09022506+0734041, Gaia DR2 584196989131676928, TIC 323523217, SDSSJ090225.05+073403.9, GALEX J090225.0+073404, SDSS J090225.05+073403.9, SDSS J090225.06+073404.0, Gaia DR3 584196989131676928
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 09 02 25.06 | 09 02 25.06 (0.04) | ||
| Declination | 07 34 03.97 | 07 34 04.01 (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] | 0.15 (0.07) | 0.14 (0.05) | |
| Distance | [pc] | 6835.27 (3341) | 6910.85 (2307) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.382 (0.1) | -4.358 (0.06) | |
| Proper motion (declination) | [mas/yr] | -3.155 (0.1) | -3.048 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.44 (0.06) | 15.49 (0.004) | ||
| H magnitude | 15.31 (0.1) | 15.25 (0.007) | ||
| K magnitude | 15.01 (0.1) | 15.20 (0.01) | ||
| u magnitude | 16.69 (0.007) | 16.69 (0.007) | ||
| g magnitude | 16.22 (0.003) | 16.22 (0.003) | ||
| r magnitude | 16.17 (0.003) | 16.17 (0.003) | ||
| i magnitude | 16.15 (0.004) | 16.15 (0.004) | ||
| z magnitude | 16.18 (0.008) | 16.18 (0.008) | ||
| G magnitude | 16.14 (0.0006) | 16.12 (0.003) | ||
| BP magnitude | 16.25 (0.003) | |||
| RP magnitude | 15.86 (0.002) | |||
| Pan g magnitude | 16.25 (0.004) | |||
| Pan r magnitude | 16.19 (0.003) | |||
| Pan i magnitude | 16.20 (0.002) | |||
| Pan z magnitude | 16.23 (0.002) | |||
| Pan y magnitude | 16.24 (0.007) | |||
| E(B-V) | 0.033 | |||
* 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.