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Orion Telescopes
Orion StarBlast 90mm Altazimuth Travel Refractor Telescope
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  • A great grab-and-go refractor telescope for beginners and experienced hobbyists alike
  • 90mm (3.5") aperture and 660mm focal length (f/7.3) provides nice views of a wide variety of objects in the night sky
  • Easy-to-operate altazimuth mount equipped with slow-motion controls for convenient tracking of objects as they appear to move across the sky
  • A perfect travel telescope for family road-trips and campouts
  • Includes 25mm and 10mm 1.25" eyepieces, EZ Finder II aiming sight, comfortable 90-degree star diagonal, and more!

Learn more
Item #  10029

With its substantial 90mm (3.5") aperture and versatile f/7.3 optics, the StarBlast 90mm Travel Refractor is the great grab-and-go telescope you've been looking for. Not only will you get great views of the Moon and its hundreds of intriguing craters and canyons, but this compact travel telescope will also provide awesome views of comets, Jupiter's cloud bands, the four largest Jovian moons, Saturn's amazing ring system, and more, even from brighter urban locations.

Since the StarBlast 90mm is so portable and lightweight at 13.5 lbs. when fully assembled, it's easy to take on the road to your favorite dark sky site, or bring along on the next family campout or road-trip. From reasonably dark skies, this portable performer grabs very nice views of emission nebulas like the Lagoon (M8), the Orion Nebula (M42), as well as dying stars like the Ring Nebula (M57), globular clusters like the Great Cluster in Hercules (M13), and gorgeous open star clusters like the Double Cluster in Perseus and the glittering Pleiades (M45). From a dark sky site with inky black skies, there are literally hundreds of deep sky objects you can track down with the affordable StarBlast 90mm Travel Refractor Telescope and a star chart of astronomy program such as the included free special edition of Starry Night.

Slow-Mo knobs

Slow-motion control makes it easy to keep objects centered for relaxing views.

The included altazimuth mount is easy to operate with its simple, up/down, left/right motion, and it gives the StarBlast 90mm telescope a stable foundation. The mount's convenient slow-motion controls make it easy to manually track celestial objects as you view them over extended periods. Long stalks on each slow-motion knob make it easy to adjust whilelooking through the telescope eyepiece.

EZ finder II

The included Orion EZ Finder II red-dot sight makes aiming the telescope nice and easy.

Following a simple alignment procedure, you can use the EZ Finder II reflex sight to accurately aim the StarBlast 90mm refractor telescope at objects in the sky like the Moon and bright planets. Once aligned with the telescope, just turn on the EZ Finder II and peer through the sight's small circular viewing window so you see the red dot, and move the telescope until the red dot is on the object you want to see.


Includes a 25mm eyepiece for 26.4x views and a 10mm eyepiece for higher magnification, 66x views.

The included telescope eyepieces provide two different magnification options right out of the box! We recommend starting with the 25mm ocular to obtain wide, 26.48x views. Then for higher-power explorations, you can boost the power all the way up to 66x by using the 10mm telescope eyepiece. An included accessory tray for the tripod provides a convenient spot to keep your eyepieces ready for action.


Enjoy comfortable views at night thanks to the included 90 mirror diagonal.

A diagonal bends the light path of a telescope so you can view the sky comfortably. Without a diagonal, you'd have to look straight through the telescope, which can be tricky and downright uncomfortable when looking at certain areas of the sky. Bending the light collected by the StarBlast 90mm telescope at a 90 angle lets you look down into the eyepiece so you can relax and enjoy the view.


Learn about the night sky with the included Starry Night Special Edition software dowload.

Explore starry skies anytime - even when it's cloudy! The StarBlast 90mm AZ Refractor telescope includes a FREE Special Edition digital download of Starry Night astronomy software. With realistic sky simulations and a many useful features including telescope control, the user-friendly Starry Night Special Edition software will help you plan your observations and understand what you see. Requires PC running Windows XP, Vista, 7, 8 or 10. Requires Macintosh running OS X 10.4 or higher.

For optimal use during the day, you can use a 90 1.25" Correct-Image Star Diagonal (#8787, sold separately) to have the StarBlast 90mm Refractor display a correctly oriented, non-reversed daytime view. (The included star diagonal yields an image that is upright, but reversed left-to-right). The StarBlast 90mm refractor is not compatible with correct image diagonals #7216 and #8754, or with 1.25" Dielectric or Enhanced Aluminum diagonals #8880 and #8879.

Portable, affordable, and simply adorable, the Orion StarBlast 90mm Travel Refractor is the versatile grab-and-go telescope you've always wanted!


Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-676-1343.

Product Support
Visit our product support section for instruction manuals and more
  • Best for viewing
    Lunar & planetary
  • Best for imaging
    Lunar & planetary
  • User level
  • Optical design
  • Optical diameter
  • Focal length
  • Focal ratio
  • Coatings
  • Optics type
    Air-spaced doublet
  • Glass material
  • Eyepieces
    Kellner 25.0mm,10.0mm (1.25")
  • Magnification with included eyepieces
    26x, 66x
  • Resolving power
  • Lowest useful magnification
  • Highest useful magnification
  • Highest theoretical magnification
  • Limiting stellar magnitude
  • Finder scope
    EZ Finder II
  • Focuser
    1.25" Rack-and-pinion
  • Mount type
  • Astro-imaging capability
    Lunar & planetary
  • Tube material
  • Tripod material
  • Tripod leg diameter
    1.25 in.
  • Height range of mount
    33.00 in. - 52.50 in.
  • Length of optical tube
    26.8 in.
  • Weight, optical tube
    5.3 lbs.
  • Weight, mount/tripod
    7.7 lbs.
  • Weight, fully assembled
    13.5 lbs.
  • Warranty
    One year
  • Focuser height at zenith
    58 in.

Orion StarBlast 90mm Altazimuth Travel Refractor Telescope
Altazimuth mount with slow-motion controls and adjustable aluminum tripod
10mm telescope eyepiece, 1.25"
25mm telescope eyepiece, 1.25"
EZ Finder II reflex sight
90 Star diagonal
Starry Night Special Edition astronomy software

Orders received by 1pm Eastern Standard Time for in-stock item the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product due to its size and weight. This charge varies based on the shipping method.

Standard Delivery: $0.00
Standard Delivery to Canada: $30.00
3 Day Delivery: $64.00
2 Day Delivery: $64.00
Next Day Delivery: $76.00

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