Is the Mu Cephei the biggest star?
Also known as Herschel’s Garnet Star and notable for its striking red colour, Mu Cephei is a spectral standard for its class (M2). It is one of the largest known stars, with a radius 1,260 – 1,650 times that of the Sun, and one of the largest stars visible to the unaided eye.
Where can I find garnet star?
Look for Herschel’s Garnet Star almost 5° southeast of Cepheus’ brightest star, magnitude 2.5 Alderamin (Alpha [α] Cephei). The best approach to seeing the color is to ever-so-slightly defocus your binoculars or a small telescope. The tiny disk you’ll create will then display its copper, ruby, rose, or garnet color.
What is the closest Cepheid variable star to Earth?
Polaris
Polaris is not only famous as the beacon for early navigators, it is also the closest Cepheid to earth (445.5 light-years away), and a subject of intense study.
Who discovered Cephei star?
Johann Bayer first noted this star with its Greek letter designation of Mu Cephei in the 1600’s, although its variable nature was not recorded until 1848 by John Russell Hind. Hind is also famous for the discovery of another ruddy jewel and star party secret weapon, Hind’s Crimson Star in the constellation Lepus.
Is Mu Cephei a carbon star?
Supernova. Mu Cephei is nearing death. It has begun to fuse helium into carbon, whereas a main sequence star fuses hydrogen into helium.
How much bigger is VV Cephei than Earth?
VV Cephei is an eclipsing binary star system located approximately 4,900 light years from Earth in the constellation Cepheus. It has an apparent magnitude of 4.91. The primary star in the system, VV Cephei A, is one of the largest known stars in the Milky Way….VV Cephei B.
| Spectral class | B0-2 V |
|---|---|
| Age | 25 million years |
Where is Cephei?
constellation Cepheus
Mu Cephei (Latinized from μ Cephei, abbreviated Mu Cep or μ Cep), also known as Herschel’s Garnet Star, Erakis, or HD 206936, is a red supergiant or hypergiant star in the constellation Cepheus. It appears garnet red and is located at the edge of the IC 1396 nebula.
Are star garnets rare?
Star garnets are so rare that to date they have only been found in two places in the world; in the state of Idaho in the USA and in India. The garnet varieties that occasionally exhibit asterism are almandine and a mixture of almandine and pyrope garnet.
What kind of star is Delta Cephei?
Type II Cepheid
Delta Cephei is a Type II Cepheid. It has a period of five days 8 hours 47.5 minutes and it appears to vary in magnitude between 3.6 and 4.3. It’s approximately 2,000 times more luminous than the sun and is 880 light-years away. It is among the closest stars of this type to the sun, with only Polaris being nearer.
Is Mu Cephei a red giant?
Mu Cephei (Latinized from μ Cephei, abbreviated Mu Cep or μ Cep), also known as Herschel’s Garnet Star, Erakis, or HD 206936, is a red supergiant or hypergiant star in the constellation Cepheus.
What type of star is Mu Cephei?
M2e IaMu Cephei / Spectral type
What kind of star is Mu Cephei?
red supergiant
A very luminous red supergiant, Mu Cephei is among the largest stars visible to the naked eye, and one of the largest known cool supergiants. It is a runaway star with a peculiar velocity of 80.7±17.7 km/s, and has been described as a hypergiant.