Skygazing – Explore Dwarf Planet Eris Using Your Telescope!

Skygazing is one of the most important essential elements of astronomy. However, it doesn’t matter if you are an astronomer or just a random person who loves sky gazing at night and loves to see non-earthly and celestial objects using a telescope.

If you are using one of the best telescopes, then it will be easier for you to explore the dwarf planet Eris. But you can only explore the dwarf planet Eris if you have some knowledge of it.

So, in this article, you will learn some interesting facts about the formation, Mass, Size, and Distance of the dwarf planet Eris.

Skygazing – Formation of Eris

Eris is a member of the Kuiper belt, which is a disc-like zone beyond the orbit of Neptune in which a group of objects orbit. Out of all the dwarf planets, Eris is the only one that orbits even farther than this range.
In the history of the solar system, about 4.5 billion years ago, there formed a realm in the solar system, populated with thousands of miniature icy worlds.


The distance of Eris from the Sun is about 68 AU, and from the Earth, it is about 95.1 AU away. The light from Eris takes 13 hours to travel to us.


The radius of Eris is about 722 miles or 1,163 kilometers. The radius of Eris is about one-fifth of the radius of the Earth. The size of the Planet Eris is a bit smaller than our moon, the same as the Planet Pluto.

If you imagine Earth as a nickel, then the Planet Eris would be the size of a kernel popcorn. The diameter of this dwarf planet is 2326 kilometers or 1445 in terms of miles.

One of the most interesting things about this dwarf planet is that it is 27% denser and more massive than the Planet Pluto, yet it is smaller than Pluto.

However, new results from a renowned mission called “New Horizons” show that the volume of the Planet Pluto is not smaller than the Dwarf Planet Eris, but it is actually slightly larger than this dwarf planet.

Because of this new information, it is easy to conclude that the Dwarf Planet Eris is the 10th largest object known to orbit the Sun but only by volume and not by mass because it is the 9th largest object to orbit the Sun on the basis of mass.

Skygazing – Observe Dwarf Planet Eris Using Your Telescope

Let’s get straight to the point.

I’m not going to lie, but it is true that you cannot observe or explore the Planet Eris with your naked eye or using your binoculars.

But the good news is, you can easily explore this dwarf planet if you have a powerful telescope. If you are not familiar with the types of telescopes or you are a beginner to astronomy, you don’t need to worry about that either.

You are about to learn about the three basic types of telescopes that you can use for Skygazing or seeing your favorite dwarf planet Eris.

So, let’s have a short overview of the types of telescopes that you can use for observing the dwarf planet Eris.

Reflecting Telescope

If you have been a science student, then you would be familiar with the principle of reflection. The reflecting telescopes work on the same principle.

The formation of a reflecting telescope is quite simple because it consists of a couple of curved mirrors that reflect light and form an image on the eyepiece.

Best Reflecting Telescope for Skygazing

The following is the best reflecting telescope you can use for Skygazing:

Celestron 21037 PowerSeeker 70EQ

Celestron 21037 (PowerSeeker 70EQ)

Celestron 21037 PowerSeeker is one of the best reflecting telescopes, and it is highly economical in terms of the price range. You can select this telescope if you want to observe the dwarf planet Eris.

Refracting Telescope

Refracting telescopes work on the refracting principle. In these telescopes, the lens is used for refraction of light and formation of the image on the eyepiece instead of using the mirrors.

Most astronomers prefer to use a refracting telescope for observing deep-space objects at night.

Best Refracting Telescope for Skygazing

Below is the best refracting telescope you can use for the purpose of sky gazing and observing the Dwarf Planet Eris.

Sky-Watcher ProED 100mm Doublet APO Refractor

Sky-Watcher ProED 100mm (Refracting Telescope)

Sky-Watcher ProED offers the best refracting telescopes for the purpose of sky grazing. This refracting telescope is best for serious and high-end astronomers.

Catadioptric Telescope

Everyone is familiar with the reflecting and refracting telescope. However, only a few people are aware of Catadioptric telescopes.

Catadioptric telescopes are a blend of reflecting and refracting telescope. It uses both reflecting mirrors and refracting lens in the formation of an image. No doubt, these telescopes provide a powerful instrument which you can use for the purpose of sky gazing.

Best Catadioptric telescope

The following is the best catadioptric telescope that you can use for the purpose of observing the dwarf planet Eris.

Celestron CPC 1100 StarBright XLT GPS (Schmidt-Cassegrain 2800mm)

Celestron CPC 1100 StarBright XLT GPS (Schmidt-Cassegrain 2800mm)

Celestron CPC 1100 is one of the best Catadioptric telescopes with a computerized mount. You can easily locate and identify planets in the sky using its computerized mount.

If you are a beginner, then you should select this telescope because it is super easy to use, and it is easier to observe planets with this catadioptric telescope.

The Bottom Line

The telescopes that I explained in this article are, no doubt, the best telescopes. However, there may be some other telescope that can be used for the purpose of Skygazing and observing planets.

You can also choose any other reflecting, refracting, or catadioptric telescope for the purpose of observing the dwarf planet Eris.

Eris is the 10th largest object to orbit the Sun based on its volume. I have explained all the basic details about the dwarf planet Eris.

Now, it is time for you to grab your telescope and look for this mysterious dwarf planet, and don’t forget to bring your friends with you.