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.
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!
The Orion SpaceProbe 130ST 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.
The relatively compact SpaceProbe 130ST EQ weighs just 27 lbs. once assembled. It's an easy telescope to take out to your favorite stargazing spot, whether just outside the back door or in a more distant location away from streetlights and light pollution. If you're looking for a better-quality first telescope or a nicely portable telescope to complement your big Dobsonian, you'll love the Orion SpaceProbe 130ST EQ Reflector Telescope.
Since 1975 Orion Telescopes & Binoculars has been offering telescopes for sale direct to customers, with an unswerving commitment to best quality products, value and unmatched customer care. Our 100% satisfaction guarantee says it all. Orion offers telescopes for every level: Beginner, Intermediate, Advanced, and Expert. From our entry level beginner telescopes for amateur astronomers to our Dobsonian telescopes to our most advanced Cassegrain telescopes and accessories, you can find the best telescope for you.