22201_astrofi_90_1

ASTRO FI 90MM REFRACTOR TELESCOPE  特價品 一個限定

22201_astrofi_90_1

PRICE:HK$4,140 –>HK$3,100

E-mail : info@sightron.com.hk

TEL:+852-2338-7092

 

以免費Celestron SkyPortal app 、用 iPhone, iPad, 或いAndroid 、通過WiFI 來操作 Telescope。

90mm 的 验光仪 和 全coated glass optics 使月球、恒星 星雲等 天体撮影 更清楚漂亮。

付属 Tray 可載 2x1.25`’的目鏡等付属物

付件 有 StarPointer finderscope, 2 Kellner eyepieces, 和 mirror star diagonal.

  • Control your telescope via integrated WiFi using the free Celestron SkyPortal app for iPhone, iPad, and Android devices
  • 90 mm refractor with fully coated glass optics provides outstanding views of the Moon, planets, and nebulae, and more.
  • Accessory tray holds 2 x 1.25” eyepieces, miscellaneous accessories, including a rubber-lined area for a smart phone or small tablet.
  • Includes a StarPointer finderscope, 2 Kellner eyepieces, and mirror star diagonal.

参数

光学系统:反射式

口径:90mm

焦距:910mm

焦比:10.1

目镜1:25mm

放大倍率1:36 x

目镜2:10mm

放大倍率2:91x

寻星镜 Starpointer

Star Diagonal: 1.25″

基座:  Single Fork Arm Altazimuth

三脚架:Aluminum

最高有效倍率:213x

最低有效倍率:13x

极限星等:12.3

分辨率(瑞利极限):1.54角秒

分辨率(杜氏极限):1.29角秒

集光力:165x

视场:

镀膜:  Fully Coated

 

回转速度:3种

 

跟踪速度:恒星速,太阳速,月球速

 

跟踪模式:经纬仪,赤道仪(北半球),赤道仪(南半球)

 

校准模式:天空校准,,三星校准,太阳系天体校准

 

Communication Ports     Aux port for optional hand control

 

数据库:120,000个目标

 

 

 

SPECIFICATIONS

Optical Deisgn Refractor
Aperture 90 mm (3.54 in)
Focal Length 910 mm (36 in)
Focal Ratio 10.1
Focal Length of Eyepiece 1 (mm) 25 mm (0.98 in)
Magnification of Eyepiece 1 36x
Focal Length of Eyepiece 2 (mm) 10 mm (0.39 in)
Magnification of Eyepiece 2 91x
Finderscope StarPointer
Star Diagonal 1.25″
Mount Type Single Fork Arm Altazimuth
Accessory Tray Includes rubberized smartphone or tablet holder
Tripod Aluminum
Highest Useful Magnification 213x
Lowest Useful Magnification 13x
Limiting Stellar Magnitude 12.3
Resolution (Rayleigh) 1.54 arc seconds arc seconds
Resolution (Dawes) 1.29 arc seconds arc seconds
Light Gathering Power (Compared to human eye) 165x
Optical Coatings Fully Coated
Optical Tube Length 37.2 in/94.5 cm in (945 mm)
Total Telescope Kit Weight 14.2 lbs (6.44 kg)
Slew Speeds Up to 3 deg/second
Tracking Rates Sidereal, Solar, and Lunar
Alignment Procedures SkyAlign, 3-Star Align, Solar System Align
Communication Ports Aux port for optional hand control
Database Over 120,000 objects including 220 of the best deep sky and solar system objects

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