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SpaceProbe 130ST Telescope
Usually Ships in 3 to 5 Days
A High Performance Telescope!
With the largest aperture this telescope is the best 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 rest for the more serious skywatchers who want more performance.
Just what's so nifty about this 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 telescope’s optical tube measures only 24" long. 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 25mm (26x power) and 10mm (65x power) Sirius Plossl telescope eyepieces and quick-release 6x30 achromatic finder scope make this one sweet optical system for skywatching and astronomy! It also includes a collimation cap and center-marked primary mirror for easy optical alignment.
The telescope comes on a sturdy and precise EQ-2 equatorial mount with dual setting circles and slow-motion hand controls. After a simple polar-alignment procedure, the EQ-2 mount allows you to easily track celestial objects as they appear to migrate across the night sky, so you can observe them in detail. The adjustable-height aluminum tripod is strong yet lightweight and includes an accessory tray so you can keep eyepieces, flashlights, and other accessories close by while using the reflector telescope.
Optical design - Reflector
Finder scope magnification - 6x
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
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
Orion optical tube assembly
25mm Orion Sirius Plössl telescope eyepiece (1.25")
10mm Orion Sirius Plössl telescope eyepiece (1.25")
Tripod legs with attachment screws
6x30 finder scope
Finder scope bracket with O-ring
Tripod accessory tray
Slow-motion control cables
Leg lock knobs
Accessory tray bracket
Accessory tray wing screws
Starry Night special edition software
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
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
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!
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