\n Packer's Barangaroo plan legally flawed, claims rival gambling operator \n James Packer's influence has long loomed large over Sydney, but now the billionaire and developer Lend Lease are accused of literally trying to block out the stars. In a submission to the revised concept plan for Barangaroo South, Sydney Observatory warns high-rise towers, including Mr Packer's 69-storey casino and hotel complex, will significantly restrict its view. In the submission Rose Hiscock, director of the Museum of Applied Arts and Sciences, says two Lend Lease towers will limit the two nightly "guided astronomy viewings" of the Southern Cross, which she describes as "the most popular object with tourists and locals". The first session will suffer a loss of view for 24 hours across 32 days, or 18 per cent of current viewing days. Viewing will be lost during the second session for 27 hours across 41 days, or 21 per cent of the current viewing days. The buildings also reduce viewing possibilities for the star Alpha Centauri and the Jewel Box star cluster. Ms Hiscock says Mr Packer's proposed building limits viewing of the globular cluster known as Omega Centauri over both nightly viewing sessions. In the first sessions it causes a loss of viewing for 20 hours across 28 days, or 15 per cent of current available viewing days. In the second session the loss is 27 hours across 41 days, or 21 per cent of available days. More broadly Ms Hiscock's submission says: "The whole Barangaroo South precinct, but particularly [the three buildings] will spill light to the sky, reducing the contrast between the background sky and objects viewed from Sydney Observatory, making objects more difficult to view." "From 12 to 25 per cent of available viewing days and from 6 to 15 per cent of the available viewing time of these iconic objects will be lost if the ... buildings are constructed," Ms Hiscock says. The Observatory has also angrily rejected the conclusion by a consultant hired by Barangaroo developer Lend Lease that the impact on viewing would be "negligible". Ms Hiscock says the Observatory was not consulted by Expert Opinion Services in the preparation of its report, which was lodged with the Department of Planning as part of Lend Lease's application. "The conclusion drawn in the report is incorrect and not supported by the evidence," she says. A Lend Lease spokeswoman said the company would review the submission before responding. A Crown Sydney spokesman declined to comment.