UK Stocks-Factors to watch on Wednesday, Oct 22

LONDON, Oct 22 (Reuters) - Britain's FTSE 100 index is seen opening 23 points higher, or up 0.4 percent, on Wednesday, according to financial bookmakers. For more on the factors affecting European stocks, please click on * The UK blue chip index closed up by 1.7 percent, or 105.26 points, at 6,372.33 points on Tuesday. * BHP BILLITON - The miner said on Wednesday it was on track to meet its full-year iron ore production guidance after mining a record 62 million tonnes in the September