Davis Instruments Celestial Navigation Quick Reference Card
価格: ¥4,270
太陽と星を使用する場所を決定
フルカラー両面
バインダーやバルクヘッド取り付けのためパンチ
防水高強度プラスチック
完全8 1 / 2 " x高さ22 x 28 cmサイズ
A simplified, yet complete Celestial Navigation system.Makes it easy, proving that lengthy instruction is not necessary to master celestial navigation.Includes everything you need: sextant use and corrections, starfinder for 18 stars, data entry form and step-by-step sight reduction and plotting procedures.May be scored and separated; large portion fits in sextant case for quick reference and small part acts as a waterproof data reduction card.