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StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
  • StarBlast 4.5" Astro Dobsonian Telescope
StarBlast 4.5" Astro Dobsonian Telescope

StarBlast 4.5" Astro Dobsonian Telescope

$219.95

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Product Details

Since 1975

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2-Year Warranty


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The StarBlast 4.5" Astro Dobsonian At a Glance

• 4.5" (114 mm) parabolic primary mirror provides bright, detailed astronomical views
• Fast f/3.9 focal ratio ideal for wide-field deep-sky observation
• Compact tabletop Dobsonian-style base for stable manual tracking with a built-in eyepiece rack for convenience

  • Comes with two 1.25" Plossl eyepiece (20mm and 10mm) and a Moon filter to reduce glare and enhance lunar detail
  • The tabletop Dobsonian base is lightweight and easy to transport
  • Comes with a copy of MoonMap 260

Learn More About the StarBlast 4.5" Astro Dobsonian

Is the StarBlast 4.5" Astro Dobsonian Telescope Right for You?

The StarBlast 4.5" Astro Dobsonian Telescope is an excellent telescope for beginners, families, and backyard observers who want bright visual views of the Moon, planets, star clusters, and brighter deep-sky objects. It comes with a fully manual "table-top" Dobsonian base, so it does not require batteries, apps, or computerized alignment, but it also does not automatically find or track objects. This is the right telescope if you want to learn the sky yourself and enjoy a simple “point and view” observing experience. It is not the right choice if you want GoTo object locating, motorized tracking, or a telescope built primarily for long-exposure astrophotography. Although with the addition of a smartphone adapter, you can take beautiful images of the moon and the planets with relative ease. 

What You’ll See and Why It Works

The StarBlast 4.5 Astro Dobsonian Telescope is built for visual astronomy. Its 114 mm mirror gathers enough light to show much more than the Moon: you can observe Jupiter, Saturn, brighter star clusters, bright nebulae, and some galaxies like Andromeda. What makes the StarBlast 4.5 Astro Dobsonian Telescope work well is the combination of a 114 mm parabolic primary mirror, 450 mm focal length, and fast f/3.9 focal ratio. In plain English, that means it has enough light-gathering power for bright views, enough focal length to perform well on the Moon and planets, and a forgiving optical design that is easy for beginners to learn and master. 

 

What You Should Know Before You Buy

Is the StarBlast 4.5" Astro Dobsonian Telescope good for beginners?

Yes. The StarBlast 4.5" Astro Dobsonian Telescope is a strong beginner telescope because it is simple, manual, and powerful enough to show bright views of the Moon, planets, and brighter deep-sky objects.

Does the StarBlast 4.5" Astro Dobsonian Telescope find objects automatically?

No. The StarBlast 4.5" Astro Dobsonian Telescope is fully manual. You point it yourself using the Dobsonian base and red dot finder.

Can I take pictures with it?

Yes! However, you will need a smartphone adapter, which will let you take quick photos or videos of the Moon and bright planets. The StarBlast 4.5" Astro Dobsonian Telescope is not designed for serious long-exposure deep-sky astrophotography.

What comes with the telescope?

The StarBlast 4.5" Astro Dobsonian Telescope includes a 25 mm and 10 mm 1.25" eyepiece, a red-dot finder, 1.25" Moon filter, collimation cap, and a classic table-top Dobsonian base. It also comes with a copy of MoonMap 260, a detailed water-resistant map of our largest natural satellite.

Is it portable?

The StarBlast 4.5" Astro Dobsonian Telescope features a user-friendly Dobsonian base. The telescope and base have a total weight of 10 lbs., meaning this telescope is relatively easy to transport.

What should I buy with it first?

The most useful first upgrades are a zoom eyepiece and a smartphone adapter. Finally, a laser-assisted collimator provides a simple-yet-precise way to maintain the primary and secondary mirror alignment of your reflector telescope.

What’s Included and What to Add Later

  •  StarBlast 4.5" Astro Dobsonian Telescope : The main telescope and manual tabletop base
  • 25 mm Eyepiece, 1.25": A Starter eyepiece that provides 22x magnification
  • 10 mm  Eyepiece, 1.25": A Starter eyepiece that provides 45x magnification
  • Red Dot Finder Scope: Which helps you aim the telescope
  • 1.25" Moon Filter: Prevents the Moon from overpowering eyepiece when bright/ full
  • Collimation Cap: Helps maintain mirror alignment
  • Dust Cap: Helping protect the telescope when stored
  • MoonMap 260: A water resistant map to help identify lunar features

The most useful first upgrades are a zoom eyepiece and a smartphone adapter. Finally, a laser-assisted collimator will help you maintain the primary and secondary mirror alignment of your reflector telescope.
2x 1.25" Shorty Barlow Lens

2x 1.25" Shorty Barlow

$34.95
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Orion 1.25" Laser Collimator for Dob & Newtonian Telescopes shown from the side, with the tool angled up to the right and with the 45-degree face catching the light

1.25" Laser Collimator

$64.95
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SkyLine Deluxe Green Laser Pointer angled up and to the right, rotated to display the logo

SkyLine Deluxe Green Laser Pointer

$69.95
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Setup, Care, and Support

The StarBlast 4.5" Astro Dobsonian Telescope base does require assembly, and detailed instructions on how to assemble can be downloaded below.

The StarBlast 4.5" Astro Dobsonian Telescope is a reflector telescope, so it will occasionally need collimation, which means aligning the mirrors for the best image. This is a straightforward process, and we've provided step-by-step instructions on how to collimate your telescope for the best result in the manual. When not in use, store the telescope with the dust cap on, avoid touching the mirrors, and keep it dry.

Pro Tip: If you observe in cold weather, give the telescope time to adjust to the outdoor temperature before expecting the sharpest views.
Orion Starblast 4.5 Dobsonian Manual (605.00 kB)

Key Specifications

SKU 10015
Model Number Orion StarBlast Dobsonian
Telescope Optical Design Newtonian Reflector
Telescope Aperture 114 mm
Telescope Focal Ratio f/3.9
Telescope Focal Length 450 mm
Optical Coatings Aluminum w/ SiO2
Primary Mirror Type Parabolic
Lowest Useful Magnification 16x
Highest Useful Magnification 285x
Focuser Design Rack & Pinion
Focuser Size 1.25"
Focuser Speed Single Speed
Mount Electronics Manual
Optical Tube Assembly Material Aluminum
Optical Tube Assembly Length 7.75"
Total Weight 10 lbs.
Warranty Orion StarGuard 2-Year Warranty

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