Dr. Brian Keating

You can even on a dark sky without a telescope. see an object that's outside of our galaxy. It's called the Andromeda Galaxy. It's very important in the history of astronomy. In 1929, 1923 rather, on Mount Wilson, not far from here, Edwin Hubble realized that that was not part of the Milky Way galaxy. It was way too far away to be located within the Milky Way.

You can even on a dark sky without a telescope. see an object that's outside of our galaxy. It's called the Andromeda Galaxy. It's very important in the history of astronomy. In 1929, 1923 rather, on Mount Wilson, not far from here, Edwin Hubble realized that that was not part of the Milky Way galaxy. It was way too far away to be located within the Milky Way.

You can even on a dark sky without a telescope. see an object that's outside of our galaxy. It's called the Andromeda Galaxy. It's very important in the history of astronomy. In 1929, 1923 rather, on Mount Wilson, not far from here, Edwin Hubble realized that that was not part of the Milky Way galaxy. It was way too far away to be located within the Milky Way.

It was about 20 times the radius of the Milky Way. And that revolutionized all of our conceptions of where the universe is located. Is it centered on us? Are we the most important thing? No. He showed that you can see that on most fall nights in the constellation Andromeda with your naked eye. It's six times wider than the full moon. It's incredible.

It was about 20 times the radius of the Milky Way. And that revolutionized all of our conceptions of where the universe is located. Is it centered on us? Are we the most important thing? No. He showed that you can see that on most fall nights in the constellation Andromeda with your naked eye. It's six times wider than the full moon. It's incredible.

It was about 20 times the radius of the Milky Way. And that revolutionized all of our conceptions of where the universe is located. Is it centered on us? Are we the most important thing? No. He showed that you can see that on most fall nights in the constellation Andromeda with your naked eye. It's six times wider than the full moon. It's incredible.

20 centuries before TikTok. So I cut them some slack. There are a couple that look similar to what they're, you know, Orion.

20 centuries before TikTok. So I cut them some slack. There are a couple that look similar to what they're, you know, Orion.

20 centuries before TikTok. So I cut them some slack. There are a couple that look similar to what they're, you know, Orion.

Those aren't constellations.

Those aren't constellations.

Those aren't constellations.

So they're portions of a constellation. So they're called asterisms. So an asterism is a collection of stars that's associated with each other, but it's not the full composition of a constellation. So the constellation is actually called Ursa Major. The Big Dipper is in the tail constellation. and the hindquarters of Ursa Major, which is the great bear.

So they're portions of a constellation. So they're called asterisms. So an asterism is a collection of stars that's associated with each other, but it's not the full composition of a constellation. So the constellation is actually called Ursa Major. The Big Dipper is in the tail constellation. and the hindquarters of Ursa Major, which is the great bear.

So they're portions of a constellation. So they're called asterisms. So an asterism is a collection of stars that's associated with each other, but it's not the full composition of a constellation. So the constellation is actually called Ursa Major. The Big Dipper is in the tail constellation. and the hindquarters of Ursa Major, which is the great bear.

The little dipper is the asterism, seven stars that make up, there's 80-something stars that make up the little bear, which actually doesn't look like a bear. Ursa Major kind of does look like the California Republic flag that we have. But yes, the asterism, I always ask for people to leave. You can't, you know, they're not making new constellations.

The little dipper is the asterism, seven stars that make up, there's 80-something stars that make up the little bear, which actually doesn't look like a bear. Ursa Major kind of does look like the California Republic flag that we have. But yes, the asterism, I always ask for people to leave. You can't, you know, they're not making new constellations.

The little dipper is the asterism, seven stars that make up, there's 80-something stars that make up the little bear, which actually doesn't look like a bear. Ursa Major kind of does look like the California Republic flag that we have. But yes, the asterism, I always ask for people to leave. You can't, you know, they're not making new constellations.

There's only 88 constellations over the whole four pi spherical dome of the sky. But you can leave your own asterism on the podcast. You can leave five stars on your podcast and mine. So you can't have a constellation, but you can have an asterism.

There's only 88 constellations over the whole four pi spherical dome of the sky. But you can leave your own asterism on the podcast. You can leave five stars on your podcast and mine. So you can't have a constellation, but you can have an asterism.