All names: Gaia DR3 6416838202886668032, UBV M 43539, GSC 09300-00916, 2MASS J19082077-7230343, uvby98 620022009, TIC 352142391, JL9, JL 9, GEN# +6.20022009, Gaia DR2 6416838202886668032
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 08 20.83 | 19 08 20.79 (0.02) | ||
| Declination | -72 30 34.53 | -72 30 34.38 (0.03) | ||
| Spectral type | sdO | sdO | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.47 (0.05) | 0.63 (0.03) | |
| Distance | [pc] | 2148.23 (234) | 1591.60 (78) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -9.559 (0.06) | -9.653 (0.02) | |
| Proper motion (declination) | [mas/yr] | -4.179 (0.08) | -4.185 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.96 | |||
| V magnitude | 13.24 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 13.95 (0.03) | 13.95 (0.03) | ||
| H magnitude | 14.08 (0.04) | 14.08 (0.04) | ||
| K magnitude | 14.26 (0.07) | 14.26 (0.07) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 13.32 (0.0006) | 13.30 (0.003) | ||
| BP magnitude | 13.09 (0.008) | |||
| RP magnitude | 13.58 (0.001) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.055 | |||
* 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.