All names: Gaia DR2 869890070404469760, Gaia DR3 869890070404469760, 2MASS J07242393+2421271, UCAC4 572-039634, LAMOST J072423.96+242126.9, LAMOSTJ072423.96+242126.9, WISE J072423.98+242127.2, Gaia EDR3 869890070404469760
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 24 23.96 (0.04) | 07 24 23.96 | 07 24 23.96 (0.04) | ||
| Declination | 24 21 26.98 (0.04) | 24 21 26.93 | 24 21 27.00 (0.04) | ||
| Spectral type | sdOB | sdB/sdO | |||
| Effective temperature | [K] | 41365.0 (517) | |||
| log(g) | [cgs] | 5.72 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.62 (0.04) | 0.63 (0.06) | 0.62 (0.04) | |
| Distance | [pc] | 1612.38 (114) | 1596.17 (142) | 1612.38 (114) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 5.609 (0.05) | 5.188 (0.1) | 5.609 (0.05) | |
| Proper motion (declination) | [mas/yr] | -1.74 (0.04) | -1.86 (0.08) | -1.74 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.40 (0.1) | ||||
| V magnitude | 15.61 (0.02) | ||||
| R magnitude | 15.88 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 16.17 (0.09) | 16.17 (0.09) | |||
| H magnitude | 16.62 (0.3) | 16.62 (0.3) | |||
| K magnitude | 16.47 | ||||
| u magnitude | |||||
| g magnitude | 15.35 (0.01) | ||||
| r magnitude | 15.82 (0.03) | ||||
| i magnitude | 16.08 (0.1) | ||||
| z magnitude | |||||
| G magnitude | 15.53 (0.003) | 15.55 (0.001) | 15.53 (0.003) | ||
| BP magnitude | 15.40 (0.004) | 15.33 (0.02) | |||
| RP magnitude | 15.80 (0.005) | 15.79 (0.003) | |||
| Pan g magnitude | 15.37 (0.007) | ||||
| Pan r magnitude | 15.78 (0.002) | ||||
| Pan i magnitude | 16.13 (0.002) | ||||
| Pan z magnitude | 16.39 (0.008) | ||||
| Pan y magnitude | 16.58 (0.004) | ||||
| E(B-V) | 0.048 | ||||
* 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.