Orion StarBlast 4.5 vs 6

Orion is one of the most popular telescope brands out there and they also have quite the option for casual users or hobbyists. Two of them are Orion StarBlast 4.5 Vs 6 which are very similar but also quite different to each other. They are however, capable of delivering a great experience and will enrich your life especially if you have a specific interest in space and celestial objects. Go check below to see what they can offer and decide which of them will fit you the most.

In this article, we are going to give you information about:

  • What to Look in a Telescope
  • What are Orion StarBlast 4.5 and 6
  • What Orion StarBlast 4.5 and 6 Look Like
  • How are the Specification of Orion StarBlast 4.5 and 6
  • How are the Performance of Orion StarBlast 4.5 and 6
  • How are the Mounting of Orion StarBlast 4.5 and 6
  • Orion StarBlast 4.5 Vs 6

Telescopes Quality

Telescopes are a very popular gift and we often end up with them when trying to find something to give to our younger family members. However, their usefulness is not limited for children only because many adults are also interested in this hobby. You don’t have to work in the related field to be able to see those celestial objects because a good telescope will bring those further away objects to your eyes to view and observe.  While all telescopes have the same functions, not all of them are the same.

  • Telescope Aperture

This will be the first specs seen when buying a telescope and in most cases they will be written next to the model’s name to ease the shopping process. Aperture is the width of the lens or mirror and this is what decides the brightness of the telescope. Huge telescopes will be great for observing the fainter objects and overall have better performance when it comes to see finer details but at the cost of weight and huge form factor. Overall a good telescope only limitation is its aperture and condition.

The external condition is what we can’t control because it is difficult to see an object clearly when the atmospheric condition is not friendly. If you ask why getting a larger aperture since at the end external factors play a huge role in your viewing experience, the answer will come back to the bigger the aperture the more capable it is to view fainter objects as it can gather more light. This means you will be able to see those dim things like galaxies, nebulae, and star clusters more effectively.

 Orion StarBlast 4.5 Orion StarBlast 6
Product Dimensions23.5 x 18.5 x 25 inches
31.9 x 21.3 x 19.3 inches
Shipping Weight13 pounds
23.6 pounds
Best offerCheck priceCheck price
  • Telescope Magnification

Since a telescope is meant to “magnify” something, it is logical to shop based on the power they can have. But, it is often overrated and not ideal in terms of capability in offering the best experience possible. Aperture itself has almost no connection to the magnification and it is more related to the eyepiece we have. However, aperture does affect the power through eyepiece we can use and atmospheric condition. This is because we have to find the perfect magnification enjoyable without blurring the image which happens when you use a small telescope with a small eyepiece. 

Eyepieces come in millimeters and the smaller it gets, the bigger its magnification. The easy way to determine which eyepiece is too high is to multiply 50 with the telescope’s aperture in inches or twice if in millimeters, to achieve the top useful magnification, as long as the optics are good quality including steady air.

About Orion StarBlast 4.5 and 6

We can shop by any category that fits your preference but it is always best to know the product that we plan to buy to make sure we won’t regret it later. If you are here then a Newtonian telescope is what you want to have and this type is very ideal for a casual observer as they are starting at a very low cost. However, you will need to know a little bit about astronomy first to be able to use a Newtonian or reflector because they need maintenance. 

Newtonian is offered by all telescope brands out there so no matter where you look at, they must have at least one in the catalogue but, we recommend Orion for those who want to get reliable products without spending too much. They have lots of amazing telescopes which are great both for present and for personal use. Many love their telescopes because of the quality and personally we also like them for the tons of choices to match with any specs and budget you have.

In the lower end or entry level, we have the StarBlast line which is very similar to the NexStar line from Celestron. This family has several sizes to offer but two of the best are Orion StarBlast 4.5 and 6 which are close brothers and chances are what the former can offer will be possible on the latter. As the name suggests, the prominent difference between the two will be their aperture as the StarBlast 6 will be bigger in aperture and in form factor.

However, when it comes to performance, StarBlast line is very reliable and we are sure you will love any of these models. Note that these two are dobsonian or altazimuth mounting but you can always upgrade them later. In our opinion, this mounting is the most user friendly for new users or those who never use and have a telescope before as it is easier to mount. Overall, you can view and observe those celestial objects very nicely with any of these models. 

Orion StarBlast 4.5 and 6 Design

In the picture, Orion StarBlast 4.5 and 6 are almost looking like the same telescopes but as the latter has a bigger aperture, the StarBlast 6 is actually larger than the brother and the length of its main tube itself is 28-inch or about 10-inch longer than the 4.5 model. This optical tube is very sturdy despite seems to be made from a thin material and these are actually steel which ensure the rigidity in case you will be transporting the telescopes a lot.

The full weight when all are assembled are 13 and 25 lbs. respectively. Since these are altazimuth, you don’t need a tripod which is also not included in the box and as you can see, Orion StarBlast 4.5 and 6 are coming in this table top style. We recommend mounting them on top of a plastic table while being used for easier access so we don’t have to bend down too far. In addition, you will get the eyepieces as well. Read also: Orion StarBlast 4.5 Vs Celestron AstroMaster 114.

Orion StarBlast 4.5 and 6 Specifications

As it has been mentioned above, the most important part in a telescope is their aperture and here we can see that Orion StarBlast 4.5 and 6 have 4.5-inch or 114mm diameter while the latter is 6-inch or 150mm. This gap will make sure the big brother is capable of collecting more light and make sure those fainter objects will be more visible. Another difference is due to the length of the optical tube, StarBlast 6 is also offering a focal length of almost twice bigger than the former.

This together will affect the brightness of your viewing experience already. As for the eyepieces they come with, the type or size are also different. StarBlast 4.5 is packed with 17mm and 6mm or 26x and 75x magnification eyepieces compared to StarBlast 6 which is coming with 25mm and 10mm or 30x and 75x power. These eyepieces are different in types however as the former is Kellner which is known to be good and inexpensive while the other uses Plossl which is often rated higher in terms of quality.

Orion StarBlast 4.5 and 6 Performance 

Moving further, the next part we want to talk about is their performance and what we love the most from these two is probably how fast you can assemble and set up the whole unit. When it comes to the actual viewing, Orion StarBlast 4.5 and 6 are amazing for the budget, you can clearly see the craters on the moon and other planets as well. Side by side we do think they are carrying the same quality especially for closer objects like the moon which looks very beautiful.

For the further objects such as Jupiter, Saturn, and Mars, we do think that StarBlast 6 offers a slightly solid image with less blurs especially when you tried checking out Saturn and its ring. You can definitely tell the planets apart and the ring also has gaps from the planet in its center.

Orion StarBlast 4.5 and 6 Mounting 

As for the mounting, we do think that Orion StarBlast 4.5 and 6 dobsonian style is more ideal for beginners or those who have never used a telescope before as it is faster to set up and understand. However, if you have experiences before and personally prefer an equatorial mount, we can buy motorized equatorial mount for these two or even a smart system to automate the tracking for StarBlast 6. Equatorial mount with a motor can be quite expensive but is very rewarding as well. 

Orion StarBlast 4.5 vs 6

Coming from the same line makes Orion StarBlast 4.5 and 6 very much similar as well. The biggest differences are in their aperture and focal length but when it comes to performance, they are equally amazing and will deliver a very satisfying view especially when the condition is good. What may be different is probably when you try checking out those further objects or planets as StarBlast 6 does look better here.

- A great compact grab-and-go telescope designed for entry-level and intermediate astronomy enthusiasts; Focal length: 450mm
- Substantial 4.5 inch aperture and fast f/4 focal ratio provides bright, detailed views of solar system targets like the Moon and planets, as well as wide-field celestial objects like nebulas and star clusters
- Ships pre-assembled so you can go from the box to your backyard in minutes. Glass material : Low thermal expansion borosilicate glass
- Stable tabletop base provides smooth altazimuth motion for easy manual tracking of celestial objects. Age Range-13 years
- A fun, capable, and simple point-and-view tabletop reflector telescope popular among both beginners and seasoned astronomers thanks to its ease of use and versatile performance
- Substantial 6" aperture reflector optics reveal good detail on the planets and Moon, as well as bright deep-sky objects such as nebulas, galaxies, and star clusters
- Compact tabletop design gives the StarBlast 6 reflector great grab-and-go portability - weighs just 23.5 lbs.
- The sturdy StarBlast 6 reflector base arrives pre-assembled in the box for hassle-free set-up. No GPS included


Since there are no bad options between the two, we are sure you can go with any of them. Personally, we prefer the StarBlast 4.5 because it is already a great deal both on the price and quality especially if you will want to have an equatorial mount later.

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