信达 Sky-Watcher 114/900 EQ2 反射式天文望远镜 - Diameter/Aperture: 114mm -直径/光圈:114毫米
- Focal Length: 900mm -焦距: 900毫米
- Aluminized and overcoated mirrors -光学主镜铝介质镀膜
-Diffraction-limited secondary mirror support 中央像质衍射较低
- Paraboloidal (parabolic) primary mirror - 抛物面主镜
- Finder for easy locating of celestial objects - 6X30光学寻星镜,便于查找天体
- 125% more light than 76mm and 165% more than 70mm refractor - 125 %的光线比76毫米和165 % ,超过70毫米折射
- Smooth rack-and-pinion 1.25" focuser -1.25 “ focuser 平滑齿条调焦座
- 114 primary mirror collects enough light to reveal a wealth of celestial objects - 114主镜集光力强,可观测较为丰富的天体细节 Four-arm, secondary-mirror bracket with fine supports 四臂副镜支撑 The Sky-Watcher paraboloidal (parabolic) mirror reflectors and all Dobsonian models feature a four-arm, secondary-mirror bracket with fine supports (0.5mm thick), to reduce diffraction spikes and light loss.抛物面镜面反射和所有DOB机型采用了四臂中央副镜支撑( 0.5毫米厚) ,以减少衍射峰值和减轻光损失。 光学设计 Paraboloidal Newtonian Reflector 抛物面牛顿反射式 Lens Material 镜头材料
Diameter 口径: 114mm
Focal Length 焦距 900mm
Scondary Mirror Diameter Scondary 副镜
F/ratio 焦比 F/7.9
Highest Practical Power 有效极限倍率 228X
Faintest Steller Magnitude 极限星等 12.8
Resoving Power Resoving 1
Finderscope Finderscope 寻星镜:6X30光学寻星镜
Focuser diameter Focuser 调焦座接口 1.25英寸
Diagonal n/a ? / 1
Eyepiece(s) 接目镜X2 1.25英寸 Super 10mm,Super 20mm
Mount Type Equatorial 赤道仪:德国式 EQ-2
Slow-motion Control RA & DEC 微动赤经赤纬调节
Counterweight(s) 重量 3.5Kgs
Piggyback Bracket Yes 三脚架:铝合金三脚架
Accessory Tray Large wall-to-wall 配件托盘 :大面积附件盘
Ground Board Diameter n/a ? / 1
Ground Board Weight(s) n/a ? / 1
Motor Drive 电机驱动 Single Axis (Optional)* 电跟驱动:单轴电跟(可选)
Go-to n/a ? / 1
Tube Weight 主镜重量:2.35Kg
Tube Dimension(dia. x length) 主镜尺寸: 12cm x 91cm
Tripod Height 三脚架高度 67cm-119cm
Shipping Weight 重量 11.5Kgs
Shipping Carton Dimensions 航运纸箱尺寸 76cm x 28cm x 23cm 全套包括:全套包括:114/900主镜,EQ-2赤道仪,铝合金三脚架,6X30光学寻星镜,附件托盘,目镜 X2 1.25英寸 Super 25mm,Super10mm,说明书,保修卡,工具等 |