Orion

Orion SkyQuest XT10i IntelliScope

Name: Orion SkyQuest XT10i IntelliScope
Brand: Orion

No longer sold

A 10-inch Dobsonian with push-to object location: the same optics as the manual XT10, plus encoders that tell you which way to push. No longer made, and the XT10 is the same telescope without the electronics.

90/ 100

Polaris Score

Performance · ease · portability · upgrade path

See the breakdown ↓

Aperture

254mm

Focal Length

1200mm

Focal Ratio

f/4.7

Mount Type

Dobsonian

Optical Design

Newtonian

Weight

25.0 kg

Try in simulator →

No longer sold

Orion ceased operations and the XT10i is gone from every retailer we checked. High Point's product URL renders no product, Orion's own store returns an empty page, and Adorama lists it as No Longer Available. The manual XT10 shares its optics exactly and is still sold. We keep the page for reference — see current alternatives below.

See alternatives ↓

What it's built forOpen these in the simulator →

This telescope was built to gather light.

254 mm of aperture pulls in the faint light that galaxies and clusters live or die on. Point it up under a dark sky and objects that are rumors in smaller scopes resolve into real structure.

Sweet spot 190–320×Rewards dark skies

The view people remember

Andromeda, wider than the Moon.

A vast soft oval with a blazing core — two and a half million light-years of galaxy, spilling well past the field of view under a genuinely dark sky.

See Andromeda Galaxy through this telescope →

Where else it shines

Easy first target

The Pleiades

Densely packed showpiece — hundreds of stars across multiple magnitudes

Open view →

Rewards a dark sky

Whirlpool Galaxy

Galaxy structure starts revealing — bright core, extended halo

Open view →

Within reach

Orion Nebula

Stronger structure — embedded stars plus dark lanes within the core

Open view →

Also excellent on

Saturn

Sharp planetary detail — multiple bands, festoons, and surface variation

Open view →

✦

It is a light bucket, not a travel scope — the reach comes with real bulk and a dark-sky drive out of town.

01What it's good at

What it's best at — and the trade-offs.

254mm of parabolic aperture is the point where galaxies show structure rather than shape and the brighter globulars resolve to the core

Best at

✓254mm of parabolic aperture is the point where galaxies show structure rather than shape and the brighter globulars resolve to the core

✓IntelliScope solves the actual beginner problem with a large Dobsonian, which is not seeing faint objects but finding them at all

✓Push-to keeps the simplicity and cost of a Dobsonian: no motors, no alignment drift, no power beyond a 9V battery in the controller

✓The 2-inch Crayford focuser handles wide-field eyepieces that a 1200mm focal length genuinely needs

Trade-offs

!No longer in production, so a failed encoder or controller is a scavenging problem rather than a warranty one

!Push-to does not track: the object still drifts out of the field and you still nudge

!A 10-inch Dobsonian is a two-trip telescope, and that decides how often it gets used

!The IntelliScope controller is dated technology next to a modern phone-based plate-solving finder

02In plain English

What These Numbers Mean

254mm · f/4.7 · 1200mm FL · Dobsonian

Aperture

254 mm (10 inch)

The step where deep-sky observing changes character. At 254mm the brighter globular clusters resolve most of the way to the core, spiral structure appears in the nearer galaxies under a dark sky, and the fainter Messier objects stop being smudges. It gathers about 56 percent more light than an 8-inch, which is a visible difference rather than a specification.

Finding system

IntelliScope push-to object locator

The defining feature and the reason to choose this over the plain XT10. Encoders on both axes track where the tube is pointing; you pick a target on the hand controller and it displays which way to push and how far. Nothing is motorised, so it keeps a Dobsonian's simplicity, needs only a 9V battery, and has nothing to lose alignment mid-session. It solves finding, not tracking.

Focal length

1200 mm

Long enough that a 10mm eyepiece gives 120x and a 6mm reaches 200x, so planetary work is done with comfortable ordinary eyepieces. The trade is field width: the largest open clusters and the full span of Andromeda will not fit, which is why the 2-inch focuser matters.

Focal ratio

f/4.7

Fast, which buys bright wide fields but asks more of an eyepiece than a slower telescope does. Inexpensive wide-angle eyepieces show noticeably soft stars at the edge of the field at f/4.7, and coma from the mirror itself becomes visible near the edge. A coma corrector is a real consideration here in a way it is not at f/6.

Optical design

Newtonian, parabolic primary

A true parabola, which is what allows a fast 10-inch to hold detail at high magnification. The cost is collimation, and at f/4.7 it matters more than at slower ratios: a fast mirror is less forgiving of misalignment, so this is a telescope whose owner needs to be comfortable aligning it.

Mount

Dobsonian, undriven

The reason a 10-inch costs what it does. A simple altazimuth box puts all the money into the mirror, and it is genuinely pleasant to use at low power. At 200x, though, an object crosses the field in well under a minute and you nudge continuously. An equatorial platform is the upgrade that changes this, and it changes it more than a better eyepiece would.

03The Polaris Score

How it scores, and why.

90/100

90/ 100

Orion SkyQuest XT10i IntelliScope

Performance

Ease of use

Portability

Upgrade potential

Polaris weighs optical capability, how easy the scope is to live with, how portable it is, and how far it takes you before you outgrow it — not list price or brand.

04Who it's for