Home Comparisons Celestron NexStar Evolution 6 VS Celestron NexStar Evolution 8 – Which is better for all users?

Celestron NexStar Evolution 6 VS Celestron NexStar Evolution 8 – Which is better for all users?

by Rizka Amir
Celestron NexStar Evolution 6 VS Celestron NexStar Evolution 8

If you are interested in Celestron’s NexStar evolution telescopes but don’t know where to start, you have come to the right place. Here is Celestron NexStar Evolution 6 VS Celestron NexStar Evolution 8, both from the NexStar evolution series. Read on for a review of both the evolution 6 and evolution 8 and a comparison of how each of these holds up when pitted up against one another.

Whether you are a beginner or an intermediate or even advanced telescope user, there will come a time when you will need to purchase your own telescope. If you are like me, then the first time purchasing a telescope was terrible for you: or you could be here because you don’t want it to be. It’s been 3 years and several hundred telescopes after wards, I have gathered a lot of information about telescopes, how they work and what they are all about. So much so that many clients seek recommendations for not only telescope purchases. Here I am going to discuss tow of Celestron’s very well equipped instruments: The evolution 6 and the evolution 8. These are high tech telescopes designed to cater to users across the spectrum from beginner to professional alike. They are a great option for anyone interested in picking up or advancing their astronomy activities. Take a look at Celestron NexStar Evolution 6 VS Celestron NexStar Evolution 8 for further insight.

What are the differences between the Celestron NexStar Evolution 6 and the Celestron NexStar Evolution 8?

Type of telescope
Schmidt-Cassegrain optical system
Schmidt-Cassegrain optical system
Aperture 150mm/6 inches, 2032mm focal length and f/10 focal ratio. Magnification on eye piece 1 38X, Magnification on eye piece 3 115X.
Aperture 203.2mm/8 inches, 2032mm focal length and f/10 focal ratio. Magnification on eye piece 1 51X, Magnification on eye piece 3 156X.
Computerized Alt-Az Single Fork Arm
Computerized GoTo Alt-Az mount



When it comes to telescopes, the larger the aperture, the larger the instrument gets. If you aren’t familiar with the term, aperture simply means the diameter of the primary mirror on the telescope. More advanced telescopes for deep sky viewing are larger and obviously heavier. Simpler telescopes on the other hand are smaller and thus lighter to suit their size.

In this case, the Evolution 6 weighs in at 38lbs when fully assembled while the Evolution 8 is at 40.5lbs. Both of these weights are considerably easy to mange and will allow you to move them around.


Even though both the Evolution 6 and 8 have different apertures, 150mm vs203mm, and different focal lengths, 1500mm vs. 2032mm, their focal rations are the same: f/10. There are many other optics design elements both these telescopes have in common including the optical system: the Schmidt Cassegrain system, with similar Alt-Az single fork mount but the Evolution 6 comes in a slightly smaller Optical tube compared to the Evolution 8.

Another optics elements that differs is the Secondary mirror obstruction. This is the amount of obstruction caused due to presence of the secondary mirror that stops the beams central part. The number can range from 15-35% for many consumer label telescopes. Often, secondary mirror obstruction is responsible for either decrease in the amount of light your instrument receives and modified image contrast. NexStar Evolution 6 has a secondary mirror obstruction of 37% by diameter and 14% by area. Alternatively, the NexStar Evolution 8 has lower obstruction with 31% obstruction by diameter and 9.77% by area.

Important similarities

It is important to mention that the Evolution 6 and evolution 8 all hail from the same line and share very many designs and features. One of the honorary mentions has to be the fact that they share and optical system: the Schmidt Cassegrains optical system which combines mirrors, lenses and corrector to eliminate many issues with other types of optical systems or models.

Celestron NexStar Evolution 6 VS Celestron NexStar Evolution 8 – A comparison review

Celestron NexStar Evolution 6 – Key features and overview

NexStar Evolution 6 TelescopeThe evolution 6 is a combination of many great Celestron qualities with its modern high technology, good optics and user friendliness. There are many different features that make this device so capable including the following.

This model is known even to beginner and non users thanks to its great profile. First off this telescope is a Schmidt Cassegrain style telescope with the following as its optics specs: an 6 inch aperture /150 mm, a 1500 focal length with an f/10 ratio Using eye piece 1, you can achieve magnifications of 38X while Magnification on eyepiece 2 reaches 115X. However, the system within this particular model generates secondary mirror obstruction of 14% by area and 37%by diameter. All these components contained in this systems optics are housed under a 16 inch optical tube on an Alt-Az mount.

In case you are worried about the optics on your telescope, their surface contains Celestron’s own: Star Bright XLT coating. This coating is designed with materials in their purest form, the result of which is great performance enhancement among other things. As mentioned, this telescope runs on a Schmidt Cassegrain, as does the evolution 8. These are Schmidt Cassegrain system or SCT style telescopes that use a compound optical system i.e a combination of mirrors and lenses and a corrector plate all work in tandem to achieve crisp images, with their actual/true color rendition and no distortion. Other benefits of using the SCT style instruments also include greater magnification potential and minimal haloing. Additionally, the SCT allows for reasonably sized telescope which maintains its form even when in use.

Apart from quality optics, the evolution 6 similarly boasts an array of features that make this instrument quite capable. For instance, you can control your telescope from your mobile phone thanks to the SkyPortal app. This application is available for iOS and android and is supplemented by the built in wireless network features. Additionally, you can access the classic sky align feature that is a highly automated alignment process that has saved many users difficult set ups.

With this purchase, you will receive access to the dependable Starry night Software. Coupled with the mount access to a wide database, this telescope severs as a great learning and progressing tool for many users. Considering that it is also easy to move around, the Evolution 6 is a good choice for all sorts of users really. The design includes large handles that really come in handy during set up. These handles are only a supplement to the sturdy steel tripod supporting the entire instrument load.

This model is powered by 4 5Ah LiFePO4 (lithium iron phosphate) batteries, 9 6V internal batteries, or the 12VDC adapter connection. Using these three as its source of power, you should e able to run this telescope for a long while without fail. The Evolution 6 holds the place for the first time a consumer telescope introduced an in built battery within the device. This ultra long performance battery can last you up to 10 hrs worth of use on one charge session. Additionally, the power manager system on the evolution 6 ensures that battery is well managed, when it almost runs out, this manager activates power saving mode to ensure your telescope remains running for as long as you need it to.

If you are interested in the evolution 6 for its astroimaging prowess the n you are in luck. This Celestron single form mounted Evolution 6 will offer you so much with its brass worm gears and its improved motors. Likewise, the tool is enabled with top notch tracking abilities making it quite easy to look for objects across the sky. By attaching a DSLR, you can capture various shots of the sky and even the deep sky. More advanced users may add Celestron’s recommended pro wedge to produce longer exposures with more details.

What we like

  • Quality optics on this model
  • Great telescope for visual observers
  • Incredible functionality for astrophotography and as astroimaging
  • Designed with 4 Aux ports

What we don’t like

  • Somewhat pricey

What can you see with the Celestron NexStar Evolution 6?

  • Deep space objects like Orin Nebula
  • Impressive lunar and planetary views


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Celestron NexStar Evolution 8

https://cdn.shopify.com/s/files/1/1935/4371/products/12091_NexStar_Evolution_8_1_1794d472-3dd3-45f7-9dc8-e746ce0bcce5_570x380@2x.jpg?v=1529944328The Celestron NexStar Evolution 8 is a capable Schmidt Cassegrain that is one of the few members of the NEXSTAR Evolution series. Using this 8 inch aperture telescope, you can access various features including but not limited to quality optics, remote control and even Wi-Fi access. Some of the features that make this device so capable include the following:

One of the most interesting things about the Celestron NexStar Evolution 8 is the standard features on it. For instance, this instrument is designed with an 8 inch aperture /203.2 mm, a 20132mm focal length with an f/10 ratio. These are similar to several other Celestron Telescopes from different series. However, his line takes the Celestron NexStar Evolution 8 to a whole other level.

Contained within the chic sliver-grey Aluminum17 inch optical tube, you can rely on the optics system on this telescope to reach advanced levels. With the Schmidt Cassegrain design used on this telescope can achieve magnifications of 50X on the 40mm eyepiece and 156X on the 13mm eyepiece. The secondary mirror on this SCT causes secondary mirror obstruction within this system in 9.77% by are or 31% by diameter. Luckily, the optics on this telescope utilize Celestron’s high performance optical coating.

Among its popular capabilities is the built in wireless network that allows you explore the skies and the universe in general from your android or iOS. If you are a diehard Star Align tech fan, do not worry, Celestron. As a bonus, the Sky Align feature is built into the app allowing you to set up comfortably from your phone and quite conveniently using the computerized aligning power thanks to Sky Align. If you are worried about your phone or devices switching off during a session, you can connect them via USB to the Evolution 8. This way, they remain running throughout the session.

The Celestron NexStar Evolution 8 uses the basic Alt-Az computerized mount with the revolutionary single fork arm. Additionally, the clamps on the Using these, you can easily track and locate objects across the sky quite easily.

Once assembled, this telescope weighs about 40.5lbs which is great news for anyone looking to move around their Evolution 8 telescope. There are additional features in play that ensure that this telescope is similarly as beginner user friendly as it is advanced. The telescope is mounted on the classic steel tripod that Celestron telescopes come with. This tripod has a 31.75mm diameter to sufficiently support the instruments load.

Unlike many other options, the Celestron NexStar Evolution 8 is powered by 9 internal 6V, or 4 5Ah LiFePO4 batteries (Lithium-Iron Phosphate). Using this inbuilt battery, the first of many, you can run sessions that extend to even 10 hrs.

What we like

  • Very well equipped telescope
  • Powerful inbuilt battery
  • Can be used remotely using your phone
  • Great optics

What we don’t like

  • There are complaints about the mount being noisy when slewing but it quiets down once it starts tracking.

What can you see with the Celestron NexStar Evolution 8?

  • Great shots of deep sky objects including M13 Hercules Globular cluster, galaxies including M81 and M83, the swan nebula and more
  • Great planetary shots
  • Crisp view of Saturn, her rings some moons
  • Cassini division
  • Impressive lunar shots with very detailed lunar surface crater features


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Verdict: so which is better? Celestron NexStar Evolution 6 or Celestron NexStar Evolution 8?

Based on what each telescope has to offer, the NexStar Evolution 8 is the better option for all users. While the Evolution 6 is a great telescope, the Evolution 8 is better at accommodating complete novices to advanced beginners. For instance, while a 6 inch aperture is not bad for astrophotography; many advanced users would choose the larger aperture telescope with the better advanced features.

Frequently asked Questions

Which is Celestron Evolution’s best telescope?

Depending on the type of activities you intend to the telescope for, any of the instruments on this line are great options. In fact, the Evolution is one of Celestron’s more popular line of telescopes. It is great for beginners, especially those who intend to widen their astronomy interest.

What is the difference between Evolution 8 and 6

There are few optics differences, design differences and features on the evolution that lack on the evolution 6. Other than that, there are very many similarities between the 8 and 6 from the NexStar Evolution Line.

Can I use my phone to operate Celestron NexStar Evolution Telescopes?

Thanks to the inbuilt wireless network and the App availed from Celestron you can access your Evolution 6 or Evolution 8 using your iOS or android powered pone. Similarly, you can access features such as the Sky Align tech using your phone.


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