All names: 2MASS J09095546+7318460, Gaia DR2 1120795222249055488, Gaia EDR3 1120795222249055488, FBS 0904+735, TIC 313007038, PG 0904+735, UCAC4 817-016072, PG0904+735, FBS B 978, Gaia DR3 1120795222249055488
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 09 09 55.45 (0.02) | 09 09 55.47 | 09 09 55.45 (0.02) | ||
| Declination | 73 18 46.06 (0.03) | 73 18 46.23 | 73 18 46.11 (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] | 0.74 (0.03) | 0.71 (0.06) | 0.74 (0.03) | |
| Distance | [pc] | 1354.83 (57) | 1405.09 (110) | 1354.83 (57) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.212 (0.03) | -0.149 (0.08) | -0.212 (0.03) | |
| Proper motion (declination) | [mas/yr] | -3.214 (0.04) | -3.167 (0.1) | -3.214 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.64 (0.01) | ||||
| V magnitude | 15.02 (0.01) | ||||
| R magnitude | 15.33 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.56 (0.06) | 15.56 (0.06) | |||
| H magnitude | 15.47 (0.1) | 15.47 (0.1) | |||
| K magnitude | 15.59 (0.2) | 15.59 (0.2) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 14.96 (0.003) | 14.98 (0.0007) | 14.96 (0.003) | ||
| BP magnitude | 14.84 (0.003) | 14.80 (0.007) | |||
| RP magnitude | 15.21 (0.004) | 15.22 (0.002) | |||
| Pan g magnitude | 14.81 (0.004) | ||||
| Pan r magnitude | 15.21 (0.007) | ||||
| Pan i magnitude | 15.55 (0.003) | ||||
| Pan z magnitude | 15.81 (0.002) | ||||
| Pan y magnitude | 15.99 (0.007) | ||||
| E(B-V) | 0.032 | ||||
* 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.