Telescope Comparison
Orion StarBlast 6 Astro Reflector vs Sky-Watcher Virtuoso GTi 130P
One finds objects for you. The other makes you learn the sky — and gives you more aperture in return.
First light
Orion · 150mm
The simple alt-az visual scope
- 150mm newtonian reflector on a simple alt-az mount
- Good for: Moon, planets, bright open clusters
- No alignment required — quick to set up, intuitive to move
- Finding objects requires learning to star-hop: navigate with a finder scope and sky chart
- 5.4kg total — manageable to carry to dark-sky sites
Sky-Watcher · 130mm · £349
The guided beginner's telescope
- 130mm newtonian reflector on a computerised mount with motorised tracking
- Good for: Moon, planets, bright nebulae, star clusters, and deep-sky objects
- GoTo system finds any object in its database after initial star alignment — no star atlas needed
- Tracking motors keep objects centred as Earth rotates — useful above 100×, essential for photography
- 4.8kg total — requires a fixed garden spot or car transport
The full picture
The numbers that separate these two scopes — and what they mean at the eyepiece.
Aperture
Orion StarBlast 6 Astro Reflector gathers 1.3× more light. On bright targets — Moon, Saturn, Jupiter — you won't notice. On fainter targets — dim galaxies, faint globular clusters — the gap is real.
Focal length
Orion StarBlast 6 Astro Reflector's longer focal length reaches higher magnification with the same eyepiece — better reach for planetary detail. Sky-Watcher Virtuoso GTi 130P's shorter focal length gives a wider true field — better for large open clusters and extended nebulae.
Focal ratio
Same focal ratio — the same eyepiece gives equivalent magnification and true field in both scopes.
Mount type
Sky-Watcher Virtuoso GTi 130P adds GoTo — it finds any target in its database after alignment. Orion StarBlast 6 Astro Reflector requires manual navigation.
Weight (OTA)
Similar optical tube weight. Any portability difference between these setups comes from the mount, not the tube itself.
Optical design
Both are Newtonian reflectors — the same optical formula. Any performance difference comes from collimation quality, focal ratio, and eyepiece choice, not the design itself.
At the eyepiece
Orion
Orion StarBlast 6 Astro Reflector
The Moon fills the field at low power with more detail than you'll have time to explore on any given night. Saturn's rings are unmistakable from the first session; in good seeing, the Cassini Division — the dark gap between the A and B rings — is a genuine target at higher magnification. Jupiter shows two equatorial cloud bands clearly, the four Galilean moons changing position night to night. The Orion Nebula (M42) shows clear structure — nebulosity spreading around the Trapezium, which splits at moderate power. The Andromeda Galaxy (M31) shows a concentrated core clearly. The Hercules Cluster (M13) shows some resolution at the edges at higher magnification.
Sky-Watcher
Sky-Watcher Virtuoso GTi 130P
The Moon fills the field at low power with more detail than you'll have time to explore on any given night. Saturn's rings are unmistakable from the first session; in good seeing, the Cassini Division — the dark gap between the A and B rings — is a genuine target at higher magnification. Jupiter shows two equatorial cloud bands clearly, the four Galilean moons changing position night to night. The Orion Nebula (M42) shows clear structure — nebulosity spreading around the Trapezium, which splits at moderate power. The Andromeda Galaxy (M31) shows a concentrated core clearly. The Hercules Cluster (M13) shows some resolution at the edges at higher magnification.
The real tradeoff
Both scopes are capable. The question is which one fits the way you actually observe.
The Sky-Watcher Virtuoso GTi 130P finds any target in its database automatically after alignment — spend the session observing. The Orion StarBlast 6 Astro Reflector asks you to navigate manually but gives you more aperture in return.
If learning the sky sounds like part of the fun, choose the Orion StarBlast 6 Astro Reflector — the extra aperture is a genuine bonus. If you'd rather spend your evenings at the eyepiece than learning to star-hop, the Sky-Watcher Virtuoso GTi 130P is the more practical choice for most beginners.
The dark side
Every scope has a personality. Here’s where each one gets difficult.
Orion
Orion StarBlast 6 Astro Reflector
Collimation: the skill nobody mentions in the listing
The mirrors go out of alignment with use. Stars look bloated rather than sharp when this happens. Users report that a Cheshire eyepiece makes collimation straightforward once learned, but most beginners don't discover they need it until their second or third month.
Finding faint objects from a light-polluted garden is genuinely hard
Star-hopping to a globular cluster or dim galaxy from a suburban sky requires learning. Users report a real demoralising phase in the first weeks — landing on the wrong star field, convincing yourself it's the target, then finding out later it wasn't. This improves rapidly with experience.
Sky-Watcher
Sky-Watcher Virtuoso GTi 130P
Alignment required every session
GoTo star alignment cannot be skipped — the mount needs to know where it is pointing before it can find objects. This adds several minutes to the start of every session, every time.
Collimation: the skill nobody mentions in the listing
The mirrors go out of alignment with use. Stars look bloated rather than sharp when this happens. Users report that a Cheshire eyepiece makes collimation straightforward once learned, but most beginners don't discover they need it until their second or third month.
Which is right for you?
Two different buyers. Two different right answers.
The simple alt-az visual scope
Orion · Orion StarBlast 6 Astro Reflector
You’ll love this if…
- You want the fastest possible setup — no alignment, no polar alignment, just point and look
- Learning the sky by star-hopping feels like part of the appeal, not a barrier to it
- Portability matters — this mount is manageable to carry to a dark-sky site without a car full of equipment
This will frustrate you if…
- You notice that stars look bloated rather than sharp and don't know why — users report this is usually a collimation issue that's straightforward to fix once you know about it, but the listing doesn't mention it
- You try to find faint objects from a light-polluted garden and mostly fail — users report a real demoralising phase in the first weeks of star-hopping that improves quickly but is genuinely discouraging at the start
The guided beginner's telescope
Sky-Watcher · Sky-Watcher Virtuoso GTi 130P
You’ll love this if…
- You want to navigate straight to targets without a star atlas — align once and the scope slews to any object in its database on demand
- You observe from a light-polluted garden where star-hopping to faint deep-sky objects would take most of a clear night
- You want objects to stay centred at high magnification without having to manually nudge the scope every few minutes
This will frustrate you if…
- You find the star alignment required at the start of every session frustrating — GoTo alignment cannot be skipped, and several minutes on a cold night before you can observe is the reality
- You notice that stars look bloated rather than sharp and don't know why — users report this is usually a collimation issue that's straightforward to fix once you know about it, but the listing doesn't mention it
Our verdict
The Sky-Watcher Virtuoso GTi 130P finds every object in its database after alignment — you spend the session observing, not navigating. The Orion StarBlast 6 Astro Reflector asks you to navigate yourself but gives you more aperture for the same money.
If learning the night sky sounds like part of the fun, choose the Orion StarBlast 6 Astro Reflector — the extra aperture is a genuine bonus. If you want to spend your evenings observing rather than navigating, the Sky-Watcher Virtuoso GTi 130P is the more honest choice for most beginners. If I had to choose for someone starting out and unsure: the Sky-Watcher Virtuoso GTi 130P — find things first, learn the sky later.
Orion StarBlast 6 Astro Reflector
View Orion StarBlast 6 Astro Reflector →Sky-Watcher Virtuoso GTi 130P
View Sky-Watcher Virtuoso GTi 130P →Deep field: Full specifications
Every data point, for those who want to go further.
Full specifications
Fields highlighted in blue or amber indicate the better value for that spec. Data is manufacturer-stated and may vary.
How much can it see?
| Spec | Orion StarBlast 6 Astro Reflector | Sky-Watcher Virtuoso GTi 130P |
|---|---|---|
Apertureⓘ The most important spec — bigger = more light = better views | 150mm | 130mm |
Focal Length Longer = more magnification potential | 750mm | 650mm |
Focal Ratio Lower f-number = wider field of view; higher = more magnification per eyepiece | f/5 | f/5 |
Optical Design The type of optics — each design has different strengths | Newtonian Reflector | Newtonian Reflector |
Coatings Better coatings = more light transmission through the optics | 94% reflectivity parabolic primary mirror | Parabolic primary mirror with multi-coated optics |
How do you point it?
| Spec | Orion StarBlast 6 Astro Reflector | Sky-Watcher Virtuoso GTi 130P |
|---|---|---|
Mount Type The mechanical system that holds and moves the telescope | Alt-Az | GoTo (Computerised) |
GoToⓘ Computer-controlled pointing — finds any of thousands of objects automatically | ||
Trackingⓘ Motor keeps objects centred as the Earth rotates — essential for astrophotography |
The focuser
| Spec | Orion StarBlast 6 Astro Reflector | Sky-Watcher Virtuoso GTi 130P |
|---|---|---|
Focuser Size 2" accepts wider eyepieces and gives better low-power views | 1.25" | 1.25" |
Focuser Type Rack-and-pinion is standard; Crayford and dual-speed are smoother | Rack and pinion | Rack and pinion |
Size & weight
| Spec | Orion StarBlast 6 Astro Reflector | Sky-Watcher Virtuoso GTi 130P |
|---|---|---|
OTA Weightⓘ Optical tube only — useful for comparing mount load capacity | 5.4kg | 4.8kg |
Total Weightⓘ Full setup including mount — this is what you lug to the car | 5.4kg | 4.8kg |
Tube Length | 635mm | — |
Tube Material | Steel | Steel (collapsible FlexTube) |
What's in the box?
| Spec | Orion StarBlast 6 Astro Reflector | Sky-Watcher Virtuoso GTi 130P |
|---|---|---|
Eyepieces Included eyepieces — more is better, but quality matters more than quantity | 25mm and 10mm Sirius Plössl | 25mm and 10mm Super eyepieces |
Finder Scope Helps you locate areas of the sky before switching to the main eyepiece | EZ Finder II red dot | Red dot finder |
Diagonal Tilts the eyepiece 90° for comfortable viewing — useful on refractors |
Smart features
| Spec | Orion StarBlast 6 Astro Reflector | Sky-Watcher Virtuoso GTi 130P |
|---|---|---|
Built-in Camera Records and stacks images automatically — no separate camera needed | ||
App Controlled | ||
WiFi | ||
Battery Included |
Blue highlight: Orion StarBlast 6 Astro Reflector advantage · Amber highlight: Sky-Watcher Virtuoso GTi 130P advantage · Greyed cells: equal or subjective.