Question

Name the brightest star in the sky during day and night ​

Answer 1

Answer:

Sirius, also known as the Dog Star or Sirius A, is the brightest star in Earth's night sky. The name means "glowing" in Greek — a fitting description, as only a few planets, the full moon and the International Space Station outshine this star.

Because Sirius is so bright, it was well-known to the ancients. But the discovery of a companion star, Sirius B, in 1862 surprised astronomers. The star that you can see with the naked eye is called Sirius A, or sometimes just Sirius. (In this article, we will clearly state when we are talking about Sirius B.)

Answer 2

Answer:

Sirius, also known as the Dog Star or Sirius A, is the brightest star in Earth's night sky. The name means "glowing" in Greek — a fitting description, as only a few planets, the full moon and the International Space Station outshine this star.

Because Sirius is so bright, it was well-known to the ancients. But the discovery of a companion star, Sirius B, in 1862 surprised astronomers. The star that you can see with the naked eye is called Sirius A, or sometimes just Sirius. (In this article, we will clearly state when we are talking about Sirius B.)

Sirius B is 10,000-times dimmer than Sirius. It's so dim, and therefore so difficult to see from Earth, that astronomers couldn't estimate its mass until 2005,