All names: GALEX J020447.1+272903, Gaia DR3 107344877838785408, TIC 118269334, Gaia DR2 107344877838785408, UCAC4 588-004945, 2MASS J02044711+2729043, WISE J020447.12+272904.4, GALEXJ02047+2729
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 04 47.11 | 02 04 47.12 (0.05) | ||
| Declination | 27 29 04.54 | 27 29 04.37 (0.05) | ||
| Spectral type | sdB+G0IV | sdB+G0IV | ||
| Effective temperature | [K] | 29260.0 (1320) | ||
| log(g) | [cgs] | 5.62 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.01 (0.04) | 1.20 (0.06) | |
| Distance | [pc] | 994.43 (42) | 833.75 (41) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 7.026 (0.07) | 5.744 (0.07) | |
| Proper motion (declination) | [mas/yr] | -0.538 (0.07) | -0.308 (0.08) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.77 (0.07) | |||
| V magnitude | 13.86 (0.05) | |||
| R magnitude | 14.09 (0.04) | |||
| I magnitude | ||||
| J magnitude | 13.51 (0.03) | 13.51 (0.03) | ||
| H magnitude | 13.28 (0.03) | 13.28 (0.03) | ||
| K magnitude | 13.27 (0.03) | 13.27 (0.03) | ||
| u magnitude | 13.99 (0.004) | |||
| g magnitude | 13.99 (0.003) | 13.73 (0.04) | ||
| r magnitude | 14.18 (0.005) | 13.96 (0.04) | ||
| i magnitude | 14.38 (0.003) | 14.14 (0.1) | ||
| z magnitude | 14.28 (0.005) | |||
| G magnitude | 13.82 (0.0008) | 13.80 (0.003) | ||
| BP magnitude | 13.78 (0.005) | |||
| RP magnitude | 13.77 (0.002) | |||
| Pan g magnitude | 13.80 (0.006) | |||
| Pan r magnitude | 13.99 (0.005) | |||
| Pan i magnitude | 14.12 (0.003) | |||
| Pan z magnitude | 14.24 (0.002) | |||
| Pan y magnitude | 14.29 (0.005) | |||
| E(B-V) | 0.088 | |||
* 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.