What age is the oldest star?

What age is the oldest star?

Short answer: The oldest star we know of is called “HD 140283”, AKA the “Methuselah Star”. It’s 14.46 ± 0.8 billion years old. Long answer: Determining the age of stars is difficult, so there’s always a degree of uncertainty when talking about which star is the oldest.

Where in the Milky Way are the youngest stars the oldest?

In our galaxy, these populations of stars are distributed from the galactic plane outward. The youngest Population I stars tend to be within the spiral arms of our galaxy, while older Population II stars tend to be above or below the galactic plane.

Are there galaxies older than the Milky Way?

Our universe is about 13.8 billion years old, so most galaxies formed when the universe was quite young! Astronomers believe that our own Milky Way galaxy is approximately 13.6 billion years old. The newest galaxy we know of formed only about 500 million years ago.

Is the Milky Way the oldest galaxy?

The oldest known galaxy in existence remains GN-z11, which formed around 400 million years after the Big Bang, as previously reported by Live Science’s sister site Space.com. Researchers discovered the ancient galaxy after finding a photo of it in the ALMA archive.

What are the oldest members of the Milky Way?

A team of astronomers using the Gemini-South telescope has discovered one of the oldest stellar clusters in the Milky Way. The team’s results date the globular cluster, named HP 1, at about 12.8 billion years, making its stars among the oldest ever found in our Galaxy.

What is the oldest part of the Milky Way?

TOI 561 is one of the oldest stars in the Milky Way; about 10 billion years old. TESS found the planet, and a team of researchers used follow-up observations with the Keck Telescope to learn more about it.

How many years does the sun have left?

Astronomers estimate that the sun has about 7 billion to 8 billion years left before it sputters out and dies. Humanity may be long gone by then, or perhaps we’ll have already colonized another planet. Additional resources: Find out what will happen to the Earth when the sun dies, from Live Science.

Where are the youngest stars of the Milky Way?

The youngest Population I stars tend to be within the spiral arms of our galaxy , while older Population II stars tend to be above or below the galactic plane. The diffuse outer halo of stars surrounding the Milky Way tends to be the stars lowest in metallicity.

Is the Milky Way one of the oldest galaxies?

Astronomers have known that the Milky Way is among the oldest of galaxies. The new observations suggest it was indeed one of the first to get under construction. The study puts its age at 13.6 billion years , give or take 800 million years .

Is Sirius in the Milky Way galaxy?

Sirius is easy to find . It’s the sky’s brightest star on the sky’s dome. When you look at it, you’re looking backwards along our solar system’s path through the Milky Way galaxy.

Is Rigel in the Milky Way?

Rigel is a hot supergiant star in the Milky Way Galaxy. It is classified as a blue supergiant. It is located in the constellation Orion. Many scientists believe that Rigel was the youngest star in the constellation.