All names: WISE J072239.99+091354.4, Gaia DR3 3155626997678101248, Gaia EDR3 3155626997678101248, Gaia DR2 3155626997678101248, UCAC4 497-042535, LAMOSTJ072240.01+091354.5, LAMOST J072240.01+091354.5, WISEA J072239.99+091354.4, 2MASS J07224001+0913545, TIC 207328336
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 22 40.01 (0.04) | 07 22 40.02 | 07 22 40.02 (0.04) | ||
| Declination | 09 13 54.34 (0.04) | 09 13 54.54 | 09 13 54.53 (0.04) | ||
| Spectral type | sdO | sdO | |||
| Effective temperature | [K] | 47730.0 (1108) | |||
| log(g) | [cgs] | 6.06 (0.08) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.95 (0.05) | 1.96 (0.08) | 1.95 (0.05) | |
| Distance | [pc] | 512.19 (14) | 509.97 (21) | 512.19 (14) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -7.084 (0.06) | -7.095 (0.1) | -7.084 (0.06) | |
| Proper motion (declination) | [mas/yr] | -12.249 (0.05) | -12.461 (0.09) | -12.249 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.87 (0.04) | ||||
| V magnitude | 13.07 (0.01) | ||||
| R magnitude | 13.28 (0.08) | ||||
| I magnitude | |||||
| J magnitude | 13.82 (0.03) | 13.82 (0.03) | |||
| H magnitude | 13.97 (0.04) | 13.97 (0.04) | |||
| K magnitude | 13.97 (0.06) | 13.97 (0.06) | |||
| u magnitude | |||||
| g magnitude | 12.93 (0.1) | ||||
| r magnitude | 13.33 (0.02) | ||||
| i magnitude | 13.68 (0.08) | ||||
| z magnitude | |||||
| G magnitude | 13.03 (0.003) | 13.05 (0.001) | 13.03 (0.003) | ||
| BP magnitude | 12.86 (0.004) | 12.77 (0.01) | |||
| RP magnitude | 13.38 (0.004) | 13.36 (0.007) | |||
| Pan g magnitude | 12.95 | ||||
| Pan r magnitude | 13.42 | ||||
| Pan i magnitude | 13.74 (0.001) | ||||
| Pan z magnitude | 14.02 (0.002) | ||||
| Pan y magnitude | 14.23 (0.001) | ||||
| E(B-V) | 0.018 | ||||
* 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.