Orion SpaceProbe 130ST Equatorial Reflector Telescope

About this product

• This 5.1" aperture reflector telescope gathers an ample amount of light for great views of the planets and Moon, as well as brighter galaxies, nebulas, and star clusters
• Short 24" long optical tube design for easy portability and fast f/5 focal ratio for pleasing wide-field performance makes the SpaceProbe 130ST EQ a very versatile telescope the whole family can enjoy
• Sturdy EQ-2 equatorial telescope mount and adjustable tripod allows manual slow-motion tracking of celestial objects as they appear to migrate across the night sky
• Complete assembled telescope weighs just 27 lbs. for convenient transport
• Includes two 1.25" Sirius Plossl eyepieces (25mm and 10mm), 6x30 finder scope, 1.25" rack and pinion focuser, tripod accessory tray, collimation cap, Starry Night astronomy software, and more!

Our largest aperture SpaceProbe reflector telescope is the niftiest Newtonian reflector on an equatorial mount we've seen in a long time. The Orion SpaceProbe 130ST EQ Reflector Telescope is a step up from the standard SpaceProbe 130 EQ for the more serious beginning or intermediate stargazer who wants additional performance, particularly for targeting deep-sky objects.

Just what's so nifty about the Orion SpaceProbe 130ST Equatorial Reflector Telescope? The answer is best described as "short and sweet."

First, the short. This "ST", or "Short Tube", version of the SpaceProbe 130 reflector is indeed more compact than the standard model. The 130ST reflector telescope's optical tube measures 24" long compared to 33" on the standard 130. The focal length of the ST's 130mm (5.1") primary mirror is 650mm (f/5), yielding a wider field of view and brighter images for a given telescope eyepiece focal length.

That brings us to sweet. The 130mm aperture primary is a diffraction-limited parabolic mirror, the same type used on much larger reflector telescopes costing many times as much. On a short-focal-length design like this one, a parabolic mirror is a must for focusing incoming light to a point and delivering sharp, detailed images. Moreover, the secondary mirror is held in an advanced holder with thin 0.5mm metal vanes, to reduce diffraction spikes and light loss. These features combined with the included EQ-2 equatorial mount and included accessories described below make this one sweet optical system for astronomy!

Limited Warranty against defects in materials or workmanship for one year from date of purchase.

• Best for viewing

  Brighter deep sky
• Best for imaging

  Lunar & planetary
• User level

  Beginner
• Optical design

  Reflector
• Optical diameter

  130mm
• Finder scope lens diameter

  30mm
• Focal length

  650mm
• Focal ratio

  f/5.0
• Optics type

  Parabolic
• Glass material

  Soda-lime plate
• Eyepieces

  Plossl 25.0mm,10.0mm (1.25")
• Magnification with included eyepieces

  26x, 65x
• Resolving power

  0.89arc*sec
• Lowest useful magnification

  19x
• Highest useful magnification

  260x
• Highest theoretical magnification

  260x
• Limiting stellar magnitude

  13.2
• Optical quality

  Diffraction limited
• Finder scope

  6x30
• Focuser

  1.25" Rack-and-pinion
• Secondary mirror obstruction

  38mm
• Secondary mirror obstruction by diameter

  28%
• Secondary mirror obstruction by area

  8%
• Mirror coatings/over-coatings

  Aluminum & Silicon Dioxide
• Mount type

  Equatorial
• Astro-imaging capability

  Lunar & planetary
• Dovetail bar system

  No
• Motor drive compatibility

  Clock drive sold separately
• Computerized compatibility

  Not compatible
• Bearing material

  Friction bearings
• Latitude range

  16-72
• Setting circles

  Yes
• Polar-axis scope

  Not available
• Counterweights

  One 4.8 lb.
• Tube material

  Aluminum
• Tripod material

  Aluminum
• Counterweight bar length

  8 in.
• Diameter of counterweight shaft

  12mm
• Height range of mount

  35.00 in. - 55.50 in.
• Length of optical tube

  24.0 in.
• Weight, optical tube

  6.2 lbs.
• Weight, mount/tripod

  18.0 lbs.
• Weight, fully assembled

  24.2 lbs.
• Additional included accessories

  Collimation cap
• Warranty

  One year