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Astronomy Cast

Ep. 615: Planet 9

Astronomy Cast

Astronomy Cast

Natural Sciences, Science, Astronomy

4.83.4K Ratings

🗓️ 18 October 2021

⏱️ 32 minutes

🧾️ Download transcript

Summary

Astronomy Cast Ep. 615: Planet 9 by Fraser Cain & Dr. Pamela Gay After Pluto lost its planethood we were down to 8 planets. But there's growing evidence of another world or worlds out beyond the orbit of Pluto. Is Planet 9 out there and how will we find it? Could there even be a Planet 10?

Transcript

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0:00.0

Oh

0:30.0

A

0:49.3

astronomy cast episode six-fifteen the search for planet nine.

0:54.4

Welcome to astronomy cast are weekly facts based journey through the cosmos where we

0:57.7

help you understand not only what we know but how we know what we know. I'm Fraser

1:01.6

Kane, publisher of University Day with me as always is Dr. Pamela Gay, a senior scientist

1:06.6

for the planetary science institute and the director of Cosmic Rust. Hey Pamela, how

1:10.7

you doing? I am doing well. There is so much going on right now. The day after record

1:17.7

this Saturday, it's International Observe the Moon Night. Next weekend is Hangout

1:22.3

The Thon, Fall is here, Halloween. For those of you watching the video, Felix the

1:27.6

Dragon is hanging out behind me celebrating October. Life is good. Life is good.

1:34.2

So I want to shamelessly self-promote the Sun today, which is of course we're

1:42.7

entering. We've left the solar minimum. We are now driving towards the solar

1:47.1

maximum and that means Rorahs. So we had an incredible Rorah display that hit a

1:53.5

big chunk of the earth in the last couple of days from when we were recording this.

1:57.9

I was really lucky I had surprisingly clear skies and could see a Rorahs off on the horizon.

2:04.5

Beautiful display I was able to catch on my phone of all things. But people as like in New

2:12.4

York state, people in sort of some of the middle latitudes were able to see it as well. So

2:18.9

now is the time. If you are interested, if you've never seen an Rorah and you live,

2:23.9

I would say above the 35th parallel, then you have a good-ish chance, a couple of times a year

2:33.9

of being able to see an Rorah, but you've got to be prepared. So get yourself acquainted with

2:40.3

Noah's Rorah alert. Find an app that you can put on your phone that will tell you when there's

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