UK Stocks-Factors to watch on Feb 3

Feb 3 (Reuters) - Britain's FTSE 100 index is seen opening down 45-55 points, or 0.8-0.9 percent, on Wednesday, according to financial bookmakers. For more on the factors affecting European stocks, please click on: * The UK blue chip index closed 2.3 percent lower at 5,922.01 points on Tuesday, knocked down by a drop in BP after the oil major reported its biggest ever annual loss. * IAG: British Airways has mulled pulling most of its aircraft out of London City airport if a new o