00517nam a22001577a 4500003000500000005001700005020001800022082001200040100001900052245007100071250001600142260002500158300001400183505014800197650001400345NUST20221103130325.0  a9789332586871  a520,CHA  aChaisson, Eric  aAstronomy :ba beginner's guide to the universe /cEric Chaisson,   a7th edition  aPearsonbIndiac2017  axv, 502 p  aPart.1 Foundation (Page-xviii), Part.2 Our planetary system (Page-98), Part.3 The stars (Page-242), Part.4 Galaxies and the universe (Page-376)  aAstronomy