All names: ALS 10448, CSI+18-19413, UBV M 50881, LS II +18 9, UCAC4 543-104618, TIC 360411039, GEN# +8.02180009, HD 350426, Lan 20, LSII+189, TYC 1606-367-1, UCAC2 38317003, Gaia EDR3 1824221903674415360, 2MASS J19433120+1824346, Gaia DR3 1824221903674415360, Gaia DR2 1824221903674415360
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 19 43 31.21 (0.04) | 19 43 31.19 | 19 43 31.21 (0.04) | ||
| Declination | 18 24 33.96 (0.04) | 18 24 37.19 | 18 24 34.65 (0.04) | ||
| 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] | 3.15 (0.07) | 3.33 (0.09) | 3.15 (0.07) | |
| Distance | [pc] | 317.31 (7) | 300.15 (8) | 317.31 (7) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.061 (0.06) | 4.051 (0.1) | 4.061 (0.06) | |
| Proper motion (declination) | [mas/yr] | -43.285 (0.06) | -43.656 (0.1) | -43.285 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 11.81 (0.06) | ||||
| V magnitude | 12.34 (0.2) | ||||
| R magnitude | 12.30 (0.06) | ||||
| I magnitude | 12.70 | ||||
| J magnitude | 12.77 (0.03) | 12.77 (0.03) | |||
| H magnitude | 12.91 (0.03) | 12.91 (0.03) | |||
| K magnitude | 13.05 (0.03) | 13.05 (0.03) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 12.02 (0.003) | 12.04 (0.0005) | 12.02 (0.003) | ||
| BP magnitude | 11.86 (0.003) | 11.81 (0.006) | |||
| RP magnitude | 12.34 (0.004) | 12.34 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | 14.96 (0.002) | ||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.037 | ||||
* 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.