香蕉久久a毛片|一级黄色片播放|日本人的色道免费网站|97就去干|日本xxxxxxxxx68

天文望遠鏡
[產品型號]	10英寸 LX90 ACF
[本機特點]	LX90望遠鏡現在包含AUDIOSTAR帶揚聲器手控器和ASTRONOMERINSIDE，包含超過30000個目標的數據庫，GPS接收器，8X50光學尋星鏡，大尺寸低膨脹高硼硅玻璃主鏡，肖特BOROFLOAT玻璃校正板，衍射極限光學系統，高透過率鍍膜， 高強鑄鋁叉式支架，智能驅動器，周期誤差校正，標準三腳架，AUTOSTAR套裝軟件，AUTOSTAR軟件可以到www.meade.com免費升級。
[光學系統]	Schmidt Cassegrain
[物鏡口徑]	254mm
[物鏡焦距]	2540mm
[物鏡焦比]	10
[天頂鏡]	有
[尋星鏡]	8x50
[托架系統]	fork-type; double tine
[系統凈重]	69 lbs.
[其他參數]	Include UHTC Setting Circle Diameters, RA and Dec.:RA: 8"; Dec: 5" Sony®GPS GO TO Pointing Precision (approx.):5-arc mins. Pointing Precision:3-arc mins. Slow-Motion Controls:electric, RA and Dec #497 AutoStar Hand Controller:PIC 16C57 microcontroller; 2 line x 16 alphanumeric character display; 20-button keypad, red LED backlit Batteries (user-supplied):8 x C-cells Battery Life (approx.):60 hrs. Onboard Celestial Object Database:30,223 objects Slew Speeds:RA and Dec: 1x, 2x, 8x, 16x, 64x, 128x sidereal and 1.5°/sec., 3°/sec., 6.5°/sec. Tracking Rates:sidereal, lunar, or custom-selected from 2000 incremental rates Tube Body:aluminum Mount Castings:aluminum Primary, Secondary Mirrors:Pyrex® glass Correcting Plate/Lens:clear water white glass Field Tripod Height all models:30" to 44" variable