Sky-Watcher StarTravel 120/600 BD AZ3 - Achromatic Refractor

Designed to provide a particularly wide field of view, the Sky-Watcher StarTravel 120/600 is a 120 mm achromatic refractor with a 600 mm focal length.

Its f/5 focal ratio makes it a bright instrument particularly suitable for wide-field observation. This configuration allows large areas of the sky to be explored and a wide variety of astronomical objects to be viewed.

The achromatic objective provides chromatic correction in the blue and red regions suitable for visual observation.

With a stated resolving power below one arc-second, the telescope can reveal a considerable amount of detail on Solar System objects.

The StarTravel 120/600 can show Saturn's rings and the Cassini Division, together with Jupiter's main cloud belts and Great Red Spot. Under favourable conditions, finer atmospheric structures may also become visible, particularly when using a suitable contrast filter.

120 mm Aperture

Objective diameter is:

• 120 mm

This aperture provides useful light-gathering capability for a wide range of astronomical objects while retaining a relatively compact telescope.

600 mm Focal Length

Telescope focal length is:

• 600 mm

The relatively short focal length favours wide-field observation.

f/5 Focal Ratio

Focal ratio is:

• f/5

This fast configuration is particularly suited to observations requiring a wide field of view.

Achromatic Objective

The StarTravel 120/600 uses an achromatic objective.

Its chromatic correction is designed to reduce blue and red colour aberrations during visual observation.

Wide-Field Observation

The combination of 120 mm aperture and 600 mm focal length provides a wide field of view.

This makes the refractor particularly suitable for exploring large areas of the sky.

Planetary Observation

Despite its relatively short focal length, the StarTravel 120/600 can also reveal major planetary features.

These include:

• Saturn's rings
• Cassini Division
• Jupiter's cloud belts
• Jupiter's Great Red Spot
• Finer atmospheric structures under favourable conditions

Resolving Power

Stated resolving power is:

• Below one arc-second

This allows fine detail to be observed when atmospheric conditions permit.

2-Inch to 1.25-Inch Eyepiece Adapter

The telescope is supplied with a reducer allowing conversion from:

• 2 inch
• To 1.25 inch

This allows standard 1.25-inch eyepieces to be used.

45° Amici Prism

A 45° Amici prism is supplied.

Fitting:

• 1.25 inch

It is particularly useful for terrestrial observation and provides a comfortable viewing position.

Two Eyepieces Included

Two Super eyepieces are supplied:

• 25 mm
• 10 mm

Fitting:

• 1.25 inch

They provide two different magnification options straight from the box.

Red-Dot Finder

A red-dot finder is supplied to assist with locating and centring observing targets.

Piggyback Camera Adapter

A piggyback camera adapter is included.

It allows a camera to be mounted on the telescope.

AZ3 Alt-Azimuth Mount

The Sky-Watcher AZ3 is an alt-azimuth mount designed for astronomical and terrestrial observation.

It can support instruments weighing up to:

• 5 kg

The supplied information indicates compatibility up to:

• 120 mm aperture for refractors
• 150 mm diameter for reflecting telescopes

Horizontal Adjustment

The horizontal axis provides rapid movement with a locking screw.

Rotation extends to nearly:

• 360°

Vertical Adjustment

The vertical axis provides rapid adjustment with a torque limiter.

Vertical adjustment range is:

• -50° to +90°

This allows observing from close to the horizon to the zenith.

Slow-Motion Controls on Both Axes

Both horizontal and vertical axes provide flexible slow-motion controls.

These allow precise manual adjustment and smooth tracking, including at higher magnifications.

Tube-Ring Attachment

The optical tube is attached to the mount using tube rings.

This secures the refractor to the AZ3 mount.

Adjustable Aluminium Tripod

The mount is supplied with an aluminium tripod.

Its height can be adjusted from:

• 70 cm
• To 123 cm

Technical Specifications

• Manufacturer : Sky-Watcher
• Model : StarTravel 120/600 BD AZ3
• Optical type : Achromatic refractor
• Aperture : 120 mm
• Focal length : 600 mm
• Focal ratio : f/5
• Objective : Achromatic
• Observing type : Wide field
• Resolving power : Below one arc-second
• Eyepiece adapter : 2 inch to 1.25 inch
• Prism : 45° Amici
• Prism fitting : 1.25 inch
• Supplied eyepieces : Super 25 mm and 10 mm
• Eyepiece fitting : 1.25 inch
• Finder : Red dot
• Camera adapter : Piggyback
• Mount : Sky-Watcher AZ3
• Mount type : Manual alt-azimuth
• Maximum mount payload : 5 kg
• Stated refractor compatibility : Up to 120 mm
• Stated reflector compatibility : Up to 150 mm
• Horizontal rotation : Nearly 360°
• Vertical adjustment : -50° to +90°
• Rapid horizontal adjustment : Yes
• Rapid vertical adjustment : Yes
• Torque limiter : Yes
• Slow-motion controls : Both axes
• Flexible controls : Yes
• Telescope attachment : Tube rings
• Tripod : Aluminium
• Minimum tripod height : 70 cm
• Maximum tripod height : 123 cm

Package Contents

• Sky-Watcher StarTravel 120/600 optical tube
• AZ3 alt-azimuth mount
• Adjustable aluminium tripod
• 2-inch to 1.25-inch reducer adapter
• 45° 1.25-inch Amici prism
• 25 mm Super eyepiece
• 10 mm Super eyepiece
• Piggyback camera adapter
• Red-dot finder