All names: UCAC4 601-007197, 2MASS J02441443+3007231, Gaia DR3 129720592299213056, GALEX J024414.4+300723, Gaia DR2 129720592299213056, SDSS J024414.45+300723.0, SDSS J024414.45+300723.1, SDSSJ024414.45+300723.1, TIC 284061267
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 44 14.45 | 02 44 14.45 (0.03) | ||
| Declination | 30 07 23.10 | 30 07 23.09 (0.03) | ||
| Spectral type | sd | sdB+F2.5V | ||
| 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] | 0.55 (0.04) | 0.55 (0.03) | |
| Distance | [pc] | 1832.51 (138) | 1812.58 (108) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 10.202 (0.07) | 10.337 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.812 (0.06) | -2.62 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.80 (0.08) | |||
| V magnitude | 14.63 (0.08) | |||
| R magnitude | 14.74 (0.05) | |||
| I magnitude | ||||
| J magnitude | 13.89 (0.03) | 13.89 (0.03) | ||
| H magnitude | 13.63 (0.04) | 13.63 (0.04) | ||
| K magnitude | 13.63 (0.04) | 13.63 (0.04) | ||
| u magnitude | 15.06 (0.004) | 15.06 (0.004) | ||
| g magnitude | 14.67 (0.003) | 14.65 (0.05) | ||
| r magnitude | 14.60 (0.003) | 14.59 (0.05) | ||
| i magnitude | 14.58 (0.004) | 14.63 (0.1) | ||
| z magnitude | 14.61 (0.005) | 14.61 (0.005) | ||
| G magnitude | 14.56 (0.0007) | 14.55 (0.003) | ||
| BP magnitude | 14.69 (0.004) | |||
| RP magnitude | 14.28 (0.003) | |||
| Pan g magnitude | 14.70 (0.002) | |||
| Pan r magnitude | 14.63 (0.006) | |||
| Pan i magnitude | 14.63 (0.003) | |||
| Pan z magnitude | 14.67 (0.002) | |||
| Pan y magnitude | 14.64 (0.009) | |||
| E(B-V) | 0.114 | |||
* 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.