All names: 2MASS J01440885+5402106, LAMOSTJ014408.84+540210.7, Gaia DR2 408127652396870400, Gaia DR3 408127652396870400, SDSS J014408.85+540210.7, WISE J014408.83+540210.8, LAMOST J014408.84+540210.7
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 01 44 08.85 | 01 44 08.85 (0.03) | ||
| Declination | 54 02 10.80 | 54 02 10.77 (0.04) | ||
| Spectral type | sdO | sdO | ||
| Effective temperature | [K] | 45274.0 (828) | ||
| log(g) | [cgs] | 5.70 (0.09) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.52 (0.06) | 0.43 (0.05) | |
| Distance | [pc] | 1940.99 (231) | 2312.67 (265) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 1.998 (0.1) | 1.849 (0.05) | |
| Proper motion (declination) | [mas/yr] | -1.352 (0.1) | -1.482 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.92 (0.09) | 15.92 (0.09) | ||
| H magnitude | 15.65 (0.2) | 15.65 (0.2) | ||
| K magnitude | 15.31 (0.2) | 15.31 (0.2) | ||
| u magnitude | 16.03 (0.005) | 16.02 (0.005) | ||
| g magnitude | 16.14 (0.003) | 16.13 (0.003) | ||
| r magnitude | 16.34 (0.004) | 16.34 (0.004) | ||
| i magnitude | 16.46 (0.004) | 16.47 (0.004) | ||
| z magnitude | 16.54 (0.008) | 16.55 (0.008) | ||
| G magnitude | 16.24 (0.001) | 16.21 (0.003) | ||
| BP magnitude | 16.17 (0.007) | |||
| RP magnitude | 16.15 (0.004) | |||
| Pan g magnitude | 16.23 (0.004) | |||
| Pan r magnitude | 16.37 (0.003) | |||
| Pan i magnitude | 16.50 (0.003) | |||
| Pan z magnitude | 16.58 (0.004) | |||
| Pan y magnitude | 16.63 (0.005) | |||
| E(B-V) | 0.228 | |||
* 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.