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ITEM # 22201 ASTRO FI 90MM REFRACTOR TELESCOPE
 
ITEM # 22201 ASTRO FI 90MM REFRACTOR TELESCOPE
 

ITEM # 22201 ASTRO FI 90MM REFRACTOR TELESCOPE 
  • 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.

SPECIFICATIONS

Optical Tube Info:
Optical DeisgnRefractor
Aperture90 mm (3.54 in)
Focal Length910 mm (36 in)
Focal Ratio10.1
Focal Length of Eyepiece 1 (mm)25 mm (0.98 in)
Magnification of Eyepiece 136x
Focal Length of Eyepiece 2 (mm)10 mm (0.39 in)
Magnification of Eyepiece 291x
FinderscopeStarPointer
Star Diagonal1.25"
Mount Info:
Mount TypeSingle Fork Arm Altazimuth
Accessory TrayIncludes rubberized smartphone or tablet holder
TripodAluminum
Highest Useful Magnification213x
Lowest Useful Magnification13x
Limiting Stellar Magnitude12.3
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 CoatingsFully Coated
Optical Tube Length37.2 in/94.5 cm in (945 mm)
Total Telescope Kit Weight14.2 lbs (6.44 kg)
Slew SpeedsUp to 3 deg/second
Tracking RatesSidereal, Solar, and Lunar
Alignment ProceduresSkyAlign, 3-Star Align, Solar System Align
Communication PortsAux port for optional hand control
DatabaseOver 120,000 objects including 220 of the best deep sky and solar system objects