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040 _aBUL
_bENG
_cBUL
_dBUL
_eRDA
082 _223
_a527
_bROY
245 _aAstro navigation:
_bthe admiralty manual of navigation volume .2. /
_cthe royal navy
250 _a11th edition
260 _alondon;
_bnautical Institute,
_c2018.
300 _aviii, v.pagings.
_bcol.:
_c30 cm.
500 _aCHAPTER 1 The celestial sphere-introduction CHAPTER 1 Time systems CHAPTER 1 Practical sights: planning, taking reducing and plotting CHAPTER 1 The celestial sphere-definitions, hour angles and theory of time CHAPTER 1 Identification of heavenly bodies, astronomical position lines, observed position and sight reduction procedures CHAPTER 1 The rising and setting of heavenly bodies CHAPTER 1 Refraction, dip and mirage CHAPTER 1 Errors in astronomical position lines CHAPTER 1 The sky at night CHAPTER 1 Extracts from the nautical almanac{1997}
650 _aNavigation
942 _2ddc
_cBO
_e11th edition
_h527
_i1
_kROY
_m527 ROY
999 _c14546
_d14546