All names: Gaia EDR3 2035949364577316480, Gaia DR3 2035949227149107968, Gaia DR2 2035949227149107968, 2MASS J19053603+2545532, KPD1903+2540, TIC 265052715, KPD 1903+2540, UCAC4 579-072175, UCAC2 40893920
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 19 05 42.55 (0.4) | 19 05 36.04 | 19 05 36.04 (0.01) | ||
| Declination | 25 46 26.92 (0.6) | 25 45 53.49 | 25 45 53.14 (0.02) | ||
| 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] | 2.04 (0.8) | 0.66 (0.03) | 0.66 (0.02) | |
| Distance | [pc] | 489.86 (199) | 1507.61 (66) | 1511.72 (46) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -2.264 (0.6) | 2.318 (0.04) | 2.199 (0.01) | |
| Proper motion (declination) | [mas/yr] | -6.851 (0.7) | -10.874 (0.06) | -10.845 (0.02) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.72 | ||||
| V magnitude | 14.71 | ||||
| R magnitude | 14.77 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 14.24 (0.03) | 14.24 (0.03) | |||
| H magnitude | 13.97 (0.03) | 13.97 (0.03) | |||
| K magnitude | 13.96 (0.05) | 13.96 (0.05) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 20.59 (0.008) | 14.63 (0.0004) | 14.61 (0.003) | ||
| BP magnitude | 21.20 (0.1) | 14.62 (0.004) | |||
| RP magnitude | 20.00 (0.07) | 14.51 (0.001) | |||
| Pan g magnitude | 14.67 (0.003) | ||||
| Pan r magnitude | 14.77 (0.0008) | ||||
| Pan i magnitude | 14.87 (0.002) | ||||
| Pan z magnitude | 14.95 (0.002) | ||||
| Pan y magnitude | 14.97 (0.003) | ||||
| E(B-V) | 0.188 | ||||
* 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.