Why is Eris so bright?

Updated: 8/20/2019
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Q: Why is Eris so bright?
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Does Eris have seasons?

Eris barely has an atmosphere, so it almost certainly does not have storms.

Why did it take astronomers so long to see Eris?

1. Eris is quite small. 2. Eris is very far away!

What kind of gas does Eris have?

Current scientific thinking suggests that Eris does not have a gaseous atmosphere. Eris is so cold that its atmosphere is frozen!

Could you see the sun from Eris?

Yes, the sun would be a very bright star. The brightness of the sun decreases as the reciprocal of the square of the distance, same as with gravity. Since the current distance to Eris is about 100 AU, this means our sun would be only 1/10,000 as bright. That is still pretty bright, but you should be able to look directly at the sun without squinting from there.

Did Artemis like Eris?

Artemis and Eris do not share a myth, so we can not determine if they liked each other.

Has a spacecraft flew past Eris?

No. Eris was only discovered in 2005. Even if a spacecraft was launched for it right then, it would not have gotten there yet. So far there are no missions to Eris.

When will Eris next orbit the sun?

Eris is in orbit around the sun. It will remain so unless perturbed from its orbit.

Is Eris older than Ares?

Age is relative, but Eris is a personified concept and the daughter of Nyx in most myths. There are some, however, that list Eris as a daughter of Ares. So the answer is "yes and no".

Who was Eris named after?

I heard from resources that we are not sure why Eris was called Eris.

Are there planets further than Eris if so what are they?

There are no planets further than Eris, but there are Dwarf Planets and TNO's (Trans-Neptunian Objects.) Some of which are: Pluto, Eris, Haumea, Makemake, Sedna, Orcus, Quaoar, and Varuna.

Has any spacecraft passed by Eris?

No. No spacecraft has gone past Eris, nor are there currently plans to send anything there.

How many did Eris have?

She had so many children, that they do not know how many she had!