This 150/900 Telescope Is Designed For :: Deep Sky Observation | Lunar Observation | Lunar Photography | Planetary Observation | Planetary Photography.
The Telescope OTA is MADE IN TAIWAN by GSO, Pier Stand MADE IN INDIA.

Optical Design

Newtonian Reflector


150 mm Primary Mirror 93% reflectivity dielectrically coated, BaK7 Glass

Focal Length 900mm
Mirror Cell Stability treated die-cast alluminum, provide better and stable alignment.
Focal Ratio F/ 6
Highest Practical Power 300x (lowest useful Magnification 21x)
Faintest Steller Magnitude 13.6

Resolving Power

0.77 Arc - Seconds.

Accepts Eyepiece Barrel Ø 50.8mm (2") and 31.7mm(1.25").


Crayford focuser

Eyepiece 1.25" or 2" OD

GSO PLOSSL 32mm 1.25"
GSO PLOSSL 15mm 1.25"

Barlow Lens 1.25" or 2" OD OPTIONAL - [ Buy Separate ]


6x30 Achromatic straight through viewfinder with reticle

Mount type

Altazimuth mount - metal

STAND PIER STAND - metal: weight 4.250 Kg
Optical Tube Weight 6.2 Kg
Tube dimension 18cm Dia, x 86cm length

Shipping Weight

OTA: Net wt. 6.2kg / Gross Wt 8Kg
Shipping Carton Dimension OTA: 94 x 33 x 28 cm3

GSO 150/900 with AZ Pier Stand | D=150 / F=900mm Newtonian Reflector Telescope

Taxes Included
  • This device focuses a lot of light.
    Looking directly at the SUN through this device can result in partial or complete loss of vision.
    For observing the SUN, we recommend you buy a 'Solar Safety Film' for this Telescope.