All names: UCAC3 144-464413, [VV2003] J220311.6-180142, EC 22004-1816, [VV2006] J220311.6-180142, EC22004-1816, [VV2010] J220311.6-180142, Gaia DR2 6825590343522704128, UCAC2 24990170, TIC 206463203, [HB93] 2200-182B, [VV98] J220311.6-180142, WISEA J220311.53-180144.1, WISE J220311.52-180143.7, 2MASS J22031152-1801438, [VV2000] J220311.6-180142, GSC 06380-00588, QSO B2200-1816, Gaia EDR3 6825590343522704128, GALEX J220311.5-180145, [VV96] J220311.6-180142, Gaia DR3 6825590343522704128, QSO B2200-181
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 22 03 11.55 (0.05) | 22 03 11.58 | 22 03 11.54 (0.05) | ||
| Declination | -18 01 43.97 (0.05) | -18 01 43.97 | -18 01 43.96 (0.05) | ||
| 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] | 0.38 (0.06) | 0.46 (0.09) | 0.38 (0.06) | |
| Distance | [pc] | 2651.82 (409) | 2175.81 (437) | 2651.82 (409) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 8.61 (0.06) | 8.717 (0.1) | 8.61 (0.06) | |
| Proper motion (declination) | [mas/yr] | -0.738 (0.06) | -0.949 (0.1) | -0.738 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | 15.60 | ||||
| I magnitude | |||||
| J magnitude | 16.48 (0.1) | 16.48 (0.1) | |||
| H magnitude | 15.94 (0.2) | 15.94 (0.2) | |||
| K magnitude | 16.99 | ||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 15.64 (0.003) | 15.66 (0.001) | 15.64 (0.003) | ||
| BP magnitude | 15.47 (0.003) | 15.40 (0.02) | |||
| RP magnitude | 15.98 (0.005) | 15.96 (0.008) | |||
| Pan g magnitude | 15.48 (0.004) | ||||
| Pan r magnitude | 15.93 (0.003) | ||||
| Pan i magnitude | 16.30 (0.001) | ||||
| Pan z magnitude | 16.60 (0.003) | ||||
| Pan y magnitude | 16.77 (0.01) | ||||
| E(B-V) | 0.022 | ||||
* 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.