** Shares of gold miner Northern Star Resources NST.AX fall 2% to A$18.9, their lowest level since May 20

** Analysts at Citi lower price target to A$22 from A$22.50 while maintaining 'Buy' rating

** Trims FY EBITDA outlook by 1% on lower FY26 estimated production, among other factors

** Brokerage aligns its FY26 capex estimate on NST with market consensus at A$2.4 bln ($1.56 bln), plus an additional A$200 million for exploration

** Citi says this rise reflects higher expectations for mine development and running costs

** Stock up 22% YTD

($1 = 1.5337 Australian dollars)

(Reporting by Kumar Tanishk in Bengaluru)

((Tanishk.Kumar@thomsonreuters.com; X: @thatstanishk http://www.x.com/thatstanishk;))