All names: Gaia DR3 892549282770576128, Gaia DR2 892549282770576128, LAMOST J073833.21+331514.8, SDSS J073833.22+331514.9, LAMOSTJ073833.21+331514.8, Gaia EDR3 892549282770576128
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 38 33.22 (0.1) | 07 38 33.22 | 07 38 33.22 (0.1) | ||
| Declination | 33 15 14.88 (0.09) | 33 15 14.89 | 33 15 14.92 (0.09) | ||
| Spectral type | sdO | sdB/sdO | |||
| Effective temperature | [K] | 68639.0 (811) | |||
| log(g) | [cgs] | 6.27 (0.09) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.24 (0.1) | 0.27 (0.1) | 0.24 (0.1) | |
| Distance | [pc] | 4106.78 (2076) | 3641.66 (1911) | 4106.78 (2076) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 0.041 (0.1) | 0.312 (0.3) | 0.041 (0.1) | |
| Proper motion (declination) | [mas/yr] | -2.799 (0.1) | -3.043 (0.2) | -2.799 (0.1) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 16.62 (0.006) | 16.61 (0.006) | |||
| g magnitude | 17.05 (0.004) | 17.03 (0.004) | |||
| r magnitude | 17.58 (0.005) | 17.54 (0.006) | |||
| i magnitude | 17.93 (0.008) | 17.90 (0.008) | |||
| z magnitude | 18.28 (0.03) | 18.19 (0.03) | |||
| G magnitude | 17.31 (0.003) | 17.34 (0.003) | 17.31 (0.003) | ||
| BP magnitude | 17.16 (0.01) | 17.07 (0.02) | |||
| RP magnitude | 17.65 (0.02) | 17.63 (0.02) | |||
| Pan g magnitude | 17.11 (0.003) | ||||
| Pan r magnitude | 17.58 (0.003) | ||||
| Pan i magnitude | 17.97 (0.005) | ||||
| Pan z magnitude | 18.25 (0.007) | ||||
| Pan y magnitude | 18.44 (0.01) | ||||
| E(B-V) | 0.038 | ||||
* 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.