All names: LAMOSTJ213129.05+195157.0, UCAC4 550-140677, Gaia DR3 1787066145893240576, Gaia DR2 1787066145893240576, TIC 283489927, 2MASS J21312904+1951571, Gaia EDR3 1787066145893240576, WISEA J213129.05+195157.0, WISE J213129.05+195157.0, LAMOST J213129.05+195157.0
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 31 29.06 (0.03) | 21 31 29.06 | 21 31 29.05 (0.03) | ||
| Declination | 19 51 56.88 (0.03) | 19 51 57.08 | 19 51 57.24 (0.03) | ||
| Spectral type | sdOB | sdO | |||
| Effective temperature | [K] | 41508.0 (242) | |||
| log(g) | [cgs] | 6.16 (0.03) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 2.62 (0.04) | 2.62 (0.05) | 2.62 (0.04) | |
| Distance | [pc] | 382.31 (5) | 381.84 (8) | 382.31 (5) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 13.573 (0.04) | 13.512 (0.09) | 13.573 (0.04) | |
| Proper motion (declination) | [mas/yr] | -22.397 (0.03) | -22.461 (0.09) | -22.397 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | 13.42 (0.05) | ||||
| I magnitude | |||||
| J magnitude | 13.77 (0.03) | 13.77 (0.03) | |||
| H magnitude | 13.97 (0.04) | 13.97 (0.04) | |||
| K magnitude | 14.08 (0.04) | 14.08 (0.04) | |||
| u magnitude | 14.68 (0.02) | ||||
| g magnitude | 13.00 (0.002) | ||||
| r magnitude | 13.43 (0.002) | ||||
| i magnitude | 14.67 (0.01) | ||||
| z magnitude | 14.91 (0.01) | ||||
| G magnitude | 13.14 (0.003) | 13.16 (0.001) | 13.14 (0.003) | ||
| BP magnitude | 12.99 (0.003) | 12.95 (0.01) | |||
| RP magnitude | 13.42 (0.004) | 13.43 (0.002) | |||
| Pan g magnitude | 12.83 | ||||
| Pan r magnitude | 13.35 | ||||
| Pan i magnitude | 13.78 (0.009) | ||||
| Pan z magnitude | 14.04 (0.003) | ||||
| Pan y magnitude | 14.23 (0.003) | ||||
| E(B-V) | 0.046 | ||||
* 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.