Orion GoScope II 70mm Refractor Travel Telescope

1-800-447-1001
Live Chat
Email Us

Why Buy From Orion

30 Day Money Back Guarantee
Safe & Secure Shopping
Same Day Shipping
Easy Returns
Sale Price Guarantee
Free Technical Support

More Information

Images
Videos

Images

Video

Product Support

Orion GoScope II 70mm Refractor Travel Telescope

Quantity:

More Shipping Information

Grab-and-go day and night refractor telescope and lightweight aluminum tripod for folks on the go
Rugged, specially designed backpack holds the 70mm telescope, tripod and all accessories
400mm focal length telescope (f/5.7) excels at daytime birding use as well as viewing wildlife, scenery and casual nighttime observing of the Moon and bright planets
Includes 5x24 finder scope for easy aiming and two 1.25" telescope eyepieces (25mm and 10mm) for 16-power and 40-power views
Weighing just 3.5 pounds, the easily portable 70mm GoScope II will go wherever you do!

Learn more

Item # 11044

Add to Wish List

Email Friend

More Info

Have you ever planned a road-trip in the family truckster and realized that everyone's "must-have" luggage leaves precious little spare room for a telescope? Orion has the answer!

You can still enjoy sharp daytime terrestrial views and night sky observations while on the road, and save storage space in the car by bringing along the pleasantly portable Orion GoScope II 70mm Refractor Travel Telescope. It's a versatile 70mm-aperture refractor telescope designed to pack up and go whenever you hit the road, the trail, or even the air. The GoScope II's custom backpack and small stature makes portable stargazing and daytime spotting a convenient reality, without compromising quality.

The entire refractor telescope setup, including field tripod, two 1.25" Kellner eyepieces (25mm and 10mm), 45� correct-image diagonal, and 5x24 finder scope fits in the custom-designed backpack, making the GoScope II an ideal grab-and-go refractor you can take virtually anywhere. It excels for daytime birding, nature study, and scenic long-distance viewing, and can also take you on visual adventures beyond the Earth's horizon after sunset for some casual nighttime stargazing and Moon-watching.

The affordable Orion GoScope II 70mm Refractor Travel Telescope features a 70mm achromatic lens system for sharp images of distant subjects. The included 45� correct-image diagonal provides a bright, correctly oriented daytime view for easy tracking of birds and wildlife in motion. Two included 1.25" Kellner eyepieces provide a variety of magnifications right out of the box. The included 25mm eyepiece provides a 16x power image, while the shorter focal length 10mm eyepiece yields 40x power views.

The Orion GoScope II 70mm Refractor Travel Telescope is a complete observational system that tucks away neatly in its specially designed backpack! Plus, the whole telescope weighs just 3.5 lbs. for easy and convenient portability.

You will find a lot of uses for the respectable optics of the Orion GoScope II 70mm Refractor Travel Telescope, and a lot of times and places to use them, day or night. For the price, it's hard to beat this nifty little refractor telescope.

Warranty

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 800-676-1343.

Warning

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

Specs

Best for viewing

Lunar & planetary
User level

User level

Beginner - Suited for a wide range of uses, Level 1 telescopes are simple to operate and set up. Some initial assembly may be required. Very good optical and mechanical quality. Great for families, young people, and folks who don't want to mess with equipment but just want to take a look. Any of these scopes will show you countless lunar craters, Saturn's rings and a myriad of star clusters and nebulas! Referring to the manual is recommended.

Intermediate - These scopes offer higher performance and more advanced features than Level 1 models. They typically take a bit longer to learn and need some set-up or adjustments. But anyone with the slightest technical bent will have no problem getting familiar with these models. Referring to the manual is recommended.

Advanced - These scopes provide the best performance but may require more skill to master and appreciate. They have exceptionally fine optics and mechanics. Some are easy to use but are but on the large or heavy side. Some are intended for specialized uses. These scopes will appeal to the more technically inclined. Referring to the manual is highly recommended.

Expert - Expert telescopes offer uncompromising optical and mechanical quality for the most demanding amateur astronomer. They may be technically involved or designed for specialized use, such as astrophotography or detailed deep sky observation. They carry a premium price, but are designed to provide the ultimate performance in the field. Referring to the manual is highly recommended.

Beginner
Optical design

Optical design

Reflector telescopes use a pair of large and small mirrors to direct incoming light to the eyepiece. Refractor telescopes refract, or "bend" incoming light to a focus by means of an objective lens. Cassegrain telescopes, such as Maksutov-Cassegrains, "fold" incoming light using two mirrors and a front "corrector" lens.

Refractor
Optical diameter

Optical diameter

The optical diameter (also known as aperture), is the size of the telescope's main light collecting lens or mirror, measured in millimeters or inches. As the diameter increases, more light is collected and the resolution increases.

70mm
Focal length

Focal length

The focal ratio of an optical system is the ratio of a telescope's focal length to its aperture. Short focal ratios (f/5, f/4.5) produce wide fields of view and small image scales, while long focal lengths produce narrower fields of views and larger image scales.

400mm
Focal ratio

Focal ratio

The focal ratio of an optical system is the ratio of a telescope's focal length to its aperture. Short focal ratios (f/5, f/4.5) produce wide fields of view and small image scales, while long focal lengths produce narrower fields of views and larger image scales.

f/5.7
Coatings

Coatings

Lenses are coated with an antireflective material to ensure that as little light as possible is reflected away, so more gets to your eye. Good lenses are at least "fully coated," with a single layer of magnesium fluoride applied to each air-to-glass lens surface. Multiple layers of coatings are even more effective; the term "multi-coated" means one or more lens surfaces have multiple coatings. "Fully multi-coated" is even better, meaning that all lens surfaces are multiple-layer coated. Mirror star diagonals are coated with a reflective material similar to telescope mirrors in order to reflect the light into the eyepiece. Standard aluminum coatings reflect between 88%-92%, and enhanced aluminum reflects 97%. Dielectric coatings use a different process to deposit a coating that reflects 99% of the light. In addition to the higher reflectivity, Dielectric coatings are much more durable than aluminum coatings, so they last longer and can be cleaned with less risk of damage.

Fully coated
Optics type

Optics type

Newtonian reflectors will have either a spherical shaped mirror, which is less expensive to produce, or a higher quality parabola, which does not result in spherical aberration. Cassegrain telescopes routinely use spheres in addition to other lenses in the optical path to correct for residual spherical aberration. Refractors use a series of lenses to provide a clear image. Designs range from a standard air-spaced doublet (two lenses in a row) to exotic designs such as oil-spaced triplets and 4-element multi group lenses.

Air-spaced doublet
Glass material

Glass material

Refractors use glass lenses to focus the light, and the glass material plays an important role in the quality of the resulting image. Standard achromatic refractors routinely use Crown and Flint for the two elements, but more expensive apochromatic refractors can use ED (extra low dispersion) glass for one or more of the lenses. Reflector mirrors are made from glass with different levels of thermal expansion. Standard mirrors are made from material such as Soda-Lime Plate glass and BK-7 glass. Glass with Pyrex or other low thermal expansion material will not change shape as dramatically during the cool-down period, resulting in more stable images during this period.

Crown/Flint
Eyepieces

Kellner 25.0mm, 10.0mm
Magnification with included eyepieces

16x, 40x
Resolving power

Resolving power

The theoretical resolving power of a telescope can be calculated with the following formula: Resolving power (in arc seconds) = 4.56 divided by aperture of telescope (in inches). In metric units, this is: Resolving power (in arc seconds) = 116 divided by aperture of telescope (in millimeters). Note that the formula is independent of the telescope type or model, and is based only upon the aperture of the telescope. So the larger the telescope's aperture, the more it is capable of resolving. This is important to keep in mind when observing astronomical objects which require high resolution for best viewing, such as planets and double stars. However, it is usually atmospheric seeing conditions (not the telescope) which limits the actual resolving power on a given night; rarely is resolution less than one arc-second possible from even the best viewing locations on Earth.

1.65arc*sec
Lowest useful magnification

Lowest useful magnification

Lowest useful magnification is the power at which the exit pupil becomes 7mm in diameter. Powers below this can still be reached with the telescope to give wider fields of view, but the image no longer becomes brighter at a lower power. This is due to the fact that the exit pupil of the telescope (the beam of light exiting the eyepiece) is now larger than the average person's dark adapted pupil, and no more light can fit into the eye.

10x
Highest useful magnification

Highest useful magnification

The highest practical limit is different from the often used "highest theoretical magnification" specification. The "theoretical" limit generally is 50x the aperture of the scope in inches (2x the aperture in mm). So for example, an 80mm refractor is capable of 160x, and a 10" telescope is theoretically capable of 500x magnification. But after approximately 300x, theory breaks down and real world problems take over. The atmosphere above us is constantly in motion, and it will distort the image seen through the telescope. This effect may not be noticeable at lower powers, but at higher powers the atmosphere will dramatically blur the object, reducing the quality of the image. On a good night (a night where the air above is steady and the stars aren't twinkling), the practical upper limit of a large telescope is 300x, even thought the theoretical limit may be much higher. This doesn't mean the scope will never be able to reach those higher "theoretical" powers - there will be that rare night where the atmosphere is perfectly still and the scope can be pushed past it's practical limit, but those nights will be few and far between.

135x
Highest theoretical magnification

135x
Limiting stellar magnitude

Limiting stellar magnitude

The limiting stellar magnitude is a measure of the faintest star you can see through the telescope.

11.9
Optical quality

Optical quality

"Diffraction Limited" means that the limits of image detail are determined by the physical properties of light, and not by optical defects in the telescope.

Diffraction limited
Finder scope

5x24
Focuser

Internal
Diagonal degrees

1.25" 45° Prism Correct-image
Mount type

Altazimuth
Tube material

Aluminum
Tripod material

Aluminum
Length of optical tube

13.0 in.
Weight, optical tube

1.6 lbs.
Weight, fully assembled

3.5 lbs.
Other features

Deluxe backpack carry case
Warranty

One year

In the Box

70mm f/5.7 Refractor optical tube assembly with 1.25" rack-and-pinion focuser
45� Correct-image diagonal, 1.25"
25mm Kellner eyepiece, 1.25"
10mm Kellner eyepiece, 1.25"
5x24 Finder scope
Three-section tripod with pan and tilt controls
Backpack carry case
Lens caps / dust caps

Shipping Info

Orders received by noon Pacific Time for in-stock items ship the same business day. Orders 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
3 Day Delivery: $15.00
2 Day Delivery: $15.00
Next Day Delivery: $21.00

Reviews

Video Gallery

{"afterScroll":"","unitSize":200,"scrollSpeed":500,"widgetClass":"SnapToScrollerWidget","snapClosest":true,"direction":"horizontal","bindings":{"bind0":{"element":"#_widget618716693007_trigger","type":"scrollend","fn":"function(event, pageNum) { PagedDataSetFilmstripLoaderWidget.loadPage(\'#relatedCommunityItemsvideo\', Math.floor(pageNum)); }"}},"beforeScroll":"","animateScroll":"true","scrollAmount":600}

{entityCount: 6}

{"imageThreshold":3,"dataModel":{"cacheEntitiesInRequest":true,"imageHeight":160,"isPDP":"true","dataProviderWidget":"com.fry.ocpsdk.widget.catalog.dataproviders.RelatedEntitiesDataProviderWidget","direction":"horizontal","entityTypeId":"4","entityId":"102397","itemViewerWidget":"com.fry.starter.widget.viewers.ItemViewerWithQuickLookWidget","relationTypeId":"20","imageWidth":160,"isCommunityRelated":"true"},"widgetClass":"PagedDataSetFilmstripLoaderWidget","emptyItemViewer":"<div class=\"image\"></div>","direction":"horizontal","loadThreshold":1,"pages":2,"pageSize":3}

Articles

{"afterScroll":"","unitSize":200,"scrollSpeed":500,"widgetClass":"SnapToScrollerWidget","snapClosest":true,"direction":"horizontal","bindings":{"bind0":{"element":"#_widget618716693042_trigger","type":"scrollend","fn":"function(event, pageNum) { PagedDataSetFilmstripLoaderWidget.loadPage(\'#relatedCommunityItemsarticle\', Math.floor(pageNum)); }"}},"beforeScroll":"","animateScroll":"true","scrollAmount":600}

{entityCount: 21}

{"imageThreshold":3,"dataModel":{"cacheEntitiesInRequest":true,"imageHeight":160,"isPDP":"true","dataProviderWidget":"com.fry.ocpsdk.widget.catalog.dataproviders.RelatedEntitiesDataProviderWidget","direction":"horizontal","entityTypeId":"4","entityId":"102397","itemViewerWidget":"com.fry.starter.widget.viewers.ItemViewerWithQuickLookWidget","relationTypeId":"17","imageWidth":160,"isCommunityRelated":"true"},"widgetClass":"PagedDataSetFilmstripLoaderWidget","emptyItemViewer":"<div class=\"image\"></div>","direction":"horizontal","loadThreshold":1,"pages":2,"pageSize":3}

{"dragByHandle":true,"cssSelector":"ql-category","dragByBody":false,"widgetClass":"OverlayWidget","bindings":{"bind0":{"element":".Quicklook > .trigger","type":"quicklookselected","fn":"function(){$.fnProxy(arguments,\'#_widget618716693142\',OverlayWidget.show,\'OverlayWidget.show\');}"},"bind1":{"element":".PagedDataSetFilmstripLoader > .trigger","type":"itemsloaded","fn":"function(event, startIndex, itemCount, newItems) { QuickLookWidget.assignEvents(newItems); $(\".Quicklook > .trigger\", newItems).bind(\"quicklookselected\", function(event, source, x, y) { OverlayWidget.show(\'#_widget618716693142\', event, source, x, y); }); }"}},"effectOnHide":"fade","effectOnShowOptions":"{}","closeOnBackgroundClick":true,"effectOnHideOptions":"{}","effectOnShowSpeed":"","onScreenPadding":10,"allowOffScreenOverlay":false,"effectOnHideSpeed":"1200","effectOnShow":"fade","captureClicks":true}

ABOUT SSL CERTIFICATES

Why Buy From Orion

30 Day Money Back Guarantee
Safe & Secure Shopping
Same Day Shipping
Easy Returns
Sale Price Guarantee
Free Technical Support

More Information

Shop Our Catalogs

Check out our colorful catalogs, filled with hundreds of quality products.

See the eCatalogs Request a Print Catalog

800-447-1001
Telescope.com
DMCA/Copyright
Terms and Conditions
Privacy & Security

About Orion Telescopes & Binoculars

Since 1975 Orion Telescopes & Binoculars has been offering telescopes for sale direct to customers, with an unswerving commitment to best quality products, value and unmatched customer care. Our 100% satisfaction guarantee says it all.

Orion offers telescopes for every level: Beginner, Intermediate, Advanced, and Expert. From our entry level beginner telescopes for amateur astronomers to our Dobsonian telescopes to our most advanced Cassegrain telescopes and accessories, you can find the best telescope for you. And you'll enjoy discount prices by buying your telescope online, direct from Orion. Not sure how to choose a telescope? Orion's Telescope Buyer's Guide is a great place to start.

Orion binoculars are known for quality optics at a great price. We offer binoculars for every viewing interest, including astronomical binoculars, compact binoculars, waterproof binoculars, birding binoculars, and sport and hunting binoculars.

Orion's telescope and astrophotography accessories will enhance your telescope enjoyment without breaking the bank. Expand your viewing experience with accessories ranging from moon filters to power-boosting Barlow lenses to advanced computerized telescope mounts. Capture breathtaking photos with our affordable astrophotography cameras. And when you're stargazing, Orion's telescope cases and covers, observing gear, red LED flashlights, astronomy books and star charts will make your observing sessions more convenient, comfortable and meaningful.

At Orion, we are committed to sharing our knowledge and passion for astronomy and astrophotography with the amateur astronomy community. Visit the Orion Community Center for in-depth information on telescopes, binoculars, and astrophotography. You can find astrophotography "how to" tips and share your best astronomy pictures here. Submit astronomy articles, events, and reviews, and even become a featured Orion customer!

Why Buy From Orion

Beginner

User level

Optical design

Optical diameter

Focal length

Focal ratio

Coatings

Optics type

Glass material

Resolving power

Lowest useful magnification

Highest useful magnification

Limiting stellar magnitude

Optical quality

Why Buy From Orion

Why Buy From Orion

Shop Our Catalogs

Email Sign Up

About Orion Telescopes & Binoculars