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The red-giant branch variable star Gamma Crucis is the nearest M-class giant star at 88 light-years. [25] The K1.5 red-giant branch star Arcturus is 36 light-years away. [ 26 ]
For lake stars to form, it is believed that a thin layer of ice needs to be present with heavy snowfall on top. They begin with a single hole, and then spidery branches extend from there, creating ...
This is the nearest red giant to the Earth, and the fourth brightest star in the night sky. Pollux (β Geminorum) 9.06 ± 0.03 [95] AD The nearest giant star to the Earth. Spica (α Virginis A) 7.47 ± 0.54 [101] One of the nearest supernova candidates and the sixteenth-brightest star in the night sky. Regulus (α Leonis A) 4.16 × 3.14 [102]
This red giant star will, one day, explode as a supernova. ... We found the second smaller event was likely due to the pulsations of the star,” Dr. Meridith ... This new study finds its body ...
R Cassiopeiae is a variable star in the northern constellation of Cassiopeia. It is located approximately 570 light years distant from the Sun, but is drifting closer with a radial velocity of −23 km/s. [5] This is a pulsating Mira-type variable star with a brightness that varies from magnitude +4.4 down to +13.5 over a period of 433.6 days. [3]
Now, using the most detailed images of a distant star ever captured, scientists have confirmed existing theories about giant stars in the late stages of their life. The results were published in ...
The red clump should not be confused with the "red bump" or red-giant-branch bump, which is a less noticeable clustering of giants partway along the red-giant branch, caused as stars ascending the red-giant branch temporarily decrease in luminosity because of internal convection. [10]
La Superba is a semiregular variable star, varying by about a magnitude over a roughly 160-day cycle, but with slower variation over a larger range. Periods of 194 and 186 days have been suggested, with a resonance between the periods. [12] Y CVn is one of the reddest stars known, and it is among the brightest of the giant red carbon stars.