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Orion Telescopes
Orion SkyScanner BL135mm Dobsonian Reflector Telescope Kit
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If purchased separately $367.96
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In Stock
  • Compact Dobsonian telescope offers beginning stargazers hands-on ease of use for scanning the night sky
  • With this value-added Kit you get three additional, helpful accessories: a Moon Filter, our Star Target Planisphere, and Orion's 174-page Telescope Observer's Guide
  • Big 135mm (5.3") primary mirror delivers bright, detailed views of the lunar surface, Saturn's rings, Jupiter's cloud bands and moons, bright star clusters and gaseous nebulas
  • Comes with quality 25mm Kellner and 10mm Plossl eyepieces that deliver 44x and 110x magnifying power, and a 3x Barlow lens that triples the magnification
  • Also includes red dot LED finder scope and Orion's MoonMap 260 to help you identify craters, mountains, and more on the lunar surface

Learn more
Item #  21503b

The Orion SkyScanner BL135mm Dobsonian Reflector Telescope Kit — which includes extra must-have items described below — will reveal the Moon's crater-scarred surface and the Orion Nebula's gaseous ghostliness in amazing detail, not to mention hundreds of other celestial gems. The whole family can get in on the action from the very first night out with the SkyScanner BL135mm Dobsonian Telescope.

This beginning Dobsonian telescope blows away traditional starter telescopes, both in terms of image brightness and ease of use. It features a big 135mm (5.3") mirror that collects gobs of light, which accounts for those bright images we mentioned. The optical tube glides effortlessly on its sturdy Dobsonian base. It's so easy to operate — you just point the telescope tube and view. There are no complicated gears, counterweights, locking levers, or tripod legs to deal with as there are with many beginner telescopes.

The 2" focuser can accept optional 2" eyepieces or 1.25" eyepieces, two of which are included. The 25mm Kellner eyepiece provides 44x magnification while the 10mm Plossl eyepiece delivers high-power 110x magnification. Keep the one you're not using in the convenient eyepiece rack. These telescope eyepieces are a definite cut above the typical cheapie jobs found in most competing beginner telescopes. And their barrels are threaded to accept optional Orion 1.25" filters.

Zero in on your target with the red dot scope. Also included is a 3x Barlow lens, which triples the magnification of any eyepiece it's used with. It's a great tool for getting in tight on your observing target. And to aid in your viewing of our favorite celestial object — the Moon — we include the Orion MoonMap 260. It shows the locations and names of over 260 features on the Moon such as craters, mountains, valleys, and "seas".

In addition to the accessories noted above, the SkyScanner BL 135mm Dobsonian Reflector Telescope Kit comes with three more must-have items, making it an unbeatable deal for the new astronomer.

Cut the Moon's glare and see more detail on its surface with the Orion 13% Transmission Moon Filter .

This popular accessory reduces glare and boosts contrast so you can enjoy more-detailed views of lunar surface features. It blocks 87% of the Moon's brightness to provide a more comfortable view and reveal subtle details. It's a neutral density filter that will not alter the natural color of the Moon, either.

star target

Learn "What's Up" on any night with the Orion Star Target Planisphere

This handy star wheel makes it easy to see "what's up" in the night sky any night of the year. Dial in your local date and time and it shows you the locations of the constellations and deep-sky objects in the night sky. Use it to plan a stargazing session, or see what time of year your favorite constellation will be visible. Designed for use in 30-50 north latitudes.

OTOG book

Read the included Orion Telescope Observer's Guide and start exploring

This 174-page guide for new telescope users will help you find, learn about, and view a variety of celestial objects. With a full page of information dedicated to each one, author Richard J. Bartlett leads you on a detailed tour of the night sky as he describes over 60 fascinating astronomical denizens that can easily be seen with a small telescope.

The base of the SkyScanner BL 135mm Dobsonian Reflector telescope weighs 23 lbs. 10 oz. The optical tube weighs 8 lbs. 15 oz. The optical tube detaches from the base with two hand knobs, making for easier two-piece transport if desired. The base even has a convenient carry handle.

Meets or exceeds California State Environmental Quality & Safety Regulations (CARB 93120 Phase 2 Compliant).


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 800-447-1001.


Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

Product Support
Visit our product support section for instruction manuals and more
  • Best for viewing
    Brighter deep sky
  • User level
  • Optical design
  • Optical diameter
  • Focal length
  • Focal ratio
  • Optics type
  • Glass material
    Soda-lime plate
  • Eyepieces
    Kellner 25.0mm,Plossl 10.0mm (1.25")
  • Magnification with included eyepieces
    44x, 110x
  • Resolving power
  • Lowest useful magnification
  • Highest useful magnification
  • Highest theoretical magnification
  • Limiting stellar magnitude
  • Front-end outside tube diameter
    6.90 in.
  • Finder scope
    Reflex sight
  • Secondary mirror obstruction
  • Secondary mirror obstruction by diameter
  • Secondary mirror obstruction by area
  • Mirror coatings/over-coatings
    Aluminum & Silicon Dioxide
  • Mount type
  • Astro-imaging capability
    Simple moon shots
  • Tube material
  • Length of optical tube
    40.0 in.
  • Weight, optical tube
    8.9 lbs.
  • Weight, mount/tripod
    23.6 lbs.
  • Weight, fully assembled
    32.6 lbs.
  • Additional included accessories
    3x barlow lens, Moon filter, MoonMap 260, Telescope Observer's Guide, planisphere, Dual Phillips/Flat screwdriver included
  • Other features
    2" R&P focuser with 1.25" adapter, Adjustable altitude and azimuth tension knobs, Center-marked primary mirror for collimation
  • Warranty
    One year
  • Lithium Battery Weight
    0.10 grams

SkyScanner BL 135mm optical tube
Red dot finder scope
25mm Kellner eyepiece, 1.25"
10mm Plossl eyepiece, 1.25"
3x Barlow lens
Base components
Base assembly hardware
Screwdriver (flat and Philips drives)
Dust cap
MoonMap 260
Orion Telescope Observer's Guide
Orion Star Target Planisphere, 30-50 degree
1.25" Orion E-Series 13% Transmission Moon Filter

Orders received by 1pm Eastern Standard Time for in-stock items ship 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: $50.00
2 Day Delivery: $50.00
Next Day Delivery: $75.00

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