Schedar, the orange giant star in Cassiopeia
Stars

Star Facts: Schedar

Schedar (Alpha Cassiopeiae) is a second magnitude star in the constellation Cassiopeia which despite its “Alpha” designation appears to be marginally dimmer than Beta Cassiopeiae (Caph), depending upon which frequency is used to measure Schedar’s …
Algol B passing in front of the brighter blue star Algol A
Stars

Interesting Facts About Algol

Algol, traditionally known as the Demon Star, is the second-brightest star in the constellation Perseus and one of the best-known variable stars in the night sky. Located approximately 93 light-years away, it is a three-star …
Mirfak, the brightest star in the constellation Perseus
Stars

Star Facts: Mirfak

Mirfak (Alpha Persei) is a yellow supergiant located about 510 light years away in the constellation of Perseus that is about sixty times bigger than our sun. It is the most luminous star in the …
Alpheratz, the brightest star in the Andromeda constellation
Stars

Star Facts: Alpheratz

Alpheratz (Alpha Andromedae) is the brightest star in the constellation Andromeda with an apparent visual magnitude of +2.06, which also makes it the 54th brightest star in the night sky. While this binary system properly …
Enif, Epsilon Pegasi, the brightest star in Pegasus
Stars

Star Facts: Epsilon Pegasi

Enif (Epsilon Pegasi) is a massive, highly evolved orange giant, and the brightest star in the constellation Pegasus with an apparent visual magnitude of +2.4. It is also the 81st brightest star in the entire …
Few star size comparisons
Astronomy Lists

10 Most Extreme Stars in the Universe

Our Sun is often described as an “average yellow dwarf star,” but there is enormous variety among stars. Their masses, temperatures, luminosities, sizes and ages can differ by extraordinary amounts, producing objects that push the …
Different types of stars chart showing main-sequence stars, evolved stars, stellar remnants and brown dwarfs
Stars

Different Types of Stars

Look at the night sky and most stars appear to be little more than points of white light. Look more carefully, however, and differences begin to emerge. Some stars have a noticeably warm orange or …
Illustration of a yellow giant star
Stars

Interesting Facts About Yellow Giant Stars

Yellow giant stars are evolved stars that have expanded and brightened after leaving the main sequence. Their yellow or yellow-white classification reflects their surface temperature, while their increased size makes them considerably more luminous than …