All names: SDSSJ073404.22+160002.0, Gaia DR2 3168540211988309760, 2MASS J07340421+1600020, UCAC4 531-041808, Gaia DR3 3168540211988309760, Gaia EDR3 3168492791253282432, SDSS J073404.22+160002.0
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 34 06.23 (0.3) | 07 34 04.22 | 07 34 04.22 (0.03) | ||
| Declination | 15 58 15.45 (0.2) | 16 00 02.05 | 16 00 02.09 (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] | 2.49 (0.3) | 0.66 (0.06) | 0.63 (0.04) | |
| Distance | [pc] | 401.35 (52) | 1524.86 (128) | 1576.29 (100) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 0.401 (0.3) | -1.206 (0.09) | -1.127 (0.04) | |
| Proper motion (declination) | [mas/yr] | -9.96 (0.3) | -3.971 (0.08) | -3.84 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.29 (0.03) | ||||
| V magnitude | 15.51 (0.01) | ||||
| R magnitude | 15.86 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 15.56 (0.06) | 15.56 (0.06) | |||
| H magnitude | 15.27 (0.1) | 15.27 (0.1) | |||
| K magnitude | 15.30 (0.2) | 15.30 (0.2) | |||
| u magnitude | 15.10 (0.004) | 15.10 (0.004) | |||
| g magnitude | 15.18 (0.003) | 15.26 (0.02) | |||
| r magnitude | 15.57 (0.004) | 15.62 (0.01) | |||
| i magnitude | 15.87 (0.004) | 15.86 (0.004) | |||
| z magnitude | 16.08 (0.007) | 16.08 (0.007) | |||
| G magnitude | 19.43 (0.005) | 15.44 (0.0008) | 15.43 (0.003) | ||
| BP magnitude | 19.53 (0.06) | 15.26 (0.008) | |||
| RP magnitude | 19.45 (0.08) | 15.58 (0.003) | |||
| Pan g magnitude | 15.26 (0.006) | ||||
| Pan r magnitude | 15.62 (0.002) | ||||
| Pan i magnitude | 15.92 (0.005) | ||||
| Pan z magnitude | 16.14 (0.002) | ||||
| Pan y magnitude | 16.26 (0.005) | ||||
| E(B-V) | 0.045 | ||||
* 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.