All names: 2MASS J03442225+2514534, Gaia EDR3 69886853143994496, Gaia DR3 69886853143994496, UCAC4 577-008774, WISE J034422.25+251452.9, LAMOST J034422.26+251453.3, LAMOST J034422.25+251453.2, LAMOSTJ034422.25+251453.2, Gaia DR2 69886853143994496
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 03 44 22.26 (0.03) | 03 44 22.26 | 03 44 22.26 (0.03) | ||
| Declination | 25 14 53.29 (0.03) | 25 14 53.28 | 25 14 53.38 (0.03) | ||
| Spectral type | sdB | sdB/sdO | |||
| Effective temperature | [K] | 29353.0 (1013) | |||
| log(g) | [cgs] | 6.31 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.79 (0.04) | 1.82 (0.06) | 1.79 (0.04) | |
| Distance | [pc] | 559.91 (12) | 549.36 (18) | 559.91 (12) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -3.798 (0.04) | -3.712 (0.1) | -3.798 (0.04) | |
| Proper motion (declination) | [mas/yr] | -5.146 (0.03) | -4.939 (0.08) | -5.146 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.68 (0.05) | ||||
| V magnitude | 15.66 (0.03) | ||||
| R magnitude | 15.94 (0.04) | ||||
| I magnitude | |||||
| J magnitude | 15.57 (0.07) | 15.57 (0.07) | |||
| H magnitude | 15.87 (0.2) | 15.87 (0.2) | |||
| K magnitude | 15.76 (0.2) | 15.76 (0.2) | |||
| u magnitude | |||||
| g magnitude | 15.54 (0.06) | ||||
| r magnitude | 15.75 (0.01) | ||||
| i magnitude | 15.86 (0.08) | ||||
| z magnitude | |||||
| G magnitude | 15.55 (0.003) | 15.57 (0.0007) | 15.55 (0.003) | ||
| BP magnitude | 15.54 (0.004) | 15.51 (0.005) | |||
| RP magnitude | 15.55 (0.005) | 15.55 (0.002) | |||
| Pan g magnitude | 15.51 (0.002) | ||||
| Pan r magnitude | 15.69 (0.004) | ||||
| Pan i magnitude | 15.88 (0.004) | ||||
| Pan z magnitude | 16.05 (0.002) | ||||
| Pan y magnitude | 16.17 (0.004) | ||||
| E(B-V) | 0.140 | ||||
* 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.