51 Pegasi compared to the Sun

An ordinary Sun-like star, and the first one anybody proved had a planet.

How big is 51 Pegasi compared to the Sun?

51 Pegasi is roughly one and a quarter times as wide as the Sun.

51 Pegasi has about the same mass as the Sun.

51 Pegasi has roughly one and a half times the volume of the Sun.

51 Pegasi’s surface is 5,488 °C. The Sun’s surface is 5,499 °C.

You see 51 Pegasi as it was 50.64 years ago.

Why it stands out: In 1995 Michel Mayor and Didier Queloz found a planet here by watching the star wobble. It was the first planet ever found around a Sun-like star, it broke every rule about where planets could be, and the discovery won a share of the 2019 Nobel Prize in Physics.
What it is: A yellow star slightly larger, older and cooler than the Sun.

The numbers