Description
“I recommend that your first scope be a reflector. The Orion 4.5 StarBlast Astro Reflector Telescope is a good place to start. It’s easy to carry, easy to set up, and easy to use. The Astronomical League and many individual astronomy clubs give these to libraries to loan out to patrons, and the scopes provide great views and survive a lot of use.” Jerry Oltion, Contributing Editor (Sky & Telescope Magazine)
Explore the Cosmos with the Orion StarBlast 4.5 Astro Reflector Telescope
The Orion StarBlast 4.5 Astro Reflector Telescope is a perfect choice for aspiring astronomers and stargazers of all ages. This compact and user-friendly telescope is designed for both beginner and intermediate astronomy enthusiasts.
Unpack and Explore in Minutes:
Unlike complex telescopes, the StarBlast comes ready to use right out of the box. With its pre-assembled design, all you need to do is attach the included EZ Finder II and choose an eyepiece to embark on your celestial adventure.
Powerful Optics for Dazzling Views:
This reflector telescope features a substantial 4.5-inch aperture that gathers plenty of light, revealing the wonders of the night sky. The fast f/4 focal ratio allows for bright, detailed views of celestial objects.
Behold the Moon, Planets, and Beyond:
- Explore the Moon: Witness the craters, mountains, and plains of our lunar neighbor in stunning detail.
- Unveil the Solar System: Observe the rings of Saturn, the moons of Jupiter, and the phases of Venus.
- Delve into Deep Space: Catch sight of faraway wonders like nebulae, star clusters, and even some galaxies.
Easy to Use and Enjoyable for Everyone:
The StarBlast boasts a user-friendly altazimuth mount, allowing for smooth and intuitive navigation across the night sky. The included eyepieces provide a range of magnifications to suit your observations.
Compact and Portable:
This telescope’s lightweight design and built-in carrying handle make it ideal for grab-and-go stargazing adventures. Whether you’re exploring from your backyard or venturing to darker skies, the StarBlast is your perfect celestial companion.

Orion StarBlast 4.5 Astro Reflector Telescope Specifications:
Specification | Details |
---|---|
Best for viewing | Brighter deep sky |
Best for imaging | Lunar & planetary |
User level | Beginner |
Optical design | Reflector |
Optical diameter | 114mm |
Focal length | 450mm |
Focal ratio | f/4.0 |
Optics type | Parabolic |
Glass material | Soda-lime plate |
Eyepieces | Bertele 20.0mm, 10.0mm (1.25″) |
Magnification with included eyepieces | 23x, 45x |
Resolving power | 1.02 arc*sec |
Lowest useful magnification | 16x |
Highest useful magnification | 228x |
Highest theoretical magnification | 228x |
Limiting stellar magnitude | 12.9 |
Optical quality | Diffraction limited |
Finder scope | EZ Finder II |
Focuser | 1.25″ Rack-and-pinion |
Secondary mirror obstruction | 34mm |
Secondary mirror obstruction by diameter | 30% |
Secondary mirror obstruction by area | 9% |
Mirror coatings/over-coatings | Aluminum & Silicon Dioxide |
Mount type | Dobsonian |
Astro-imaging capability | Simple moon shots |
Computerized compatibility | Not compatible |
Bearing material | PTFE and UHMW bearings |
Tube material | Steel |
Tripod material | Wood |
Length of optical tube | 17.8 in. |
Weight, optical tube | 5.6 lbs. |
Weight, mount/tripod | 5.3 lbs. |
Weight, fully assembled | 10.9 lbs. |
Focuser height at zenith | 21 in. |
Additional included accessories | Orion MoonMap 260 reference map, Orion Moon Filter, Eyepiece rack holds three 1.25″ eyepieces |
Other features | Integrated carrying handle on base, Dovetail finder scope shoe, Center-marked mirror for precise collimation |
Warranty | One year |
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