How old is Cephei?
Mu Cephei
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Temperature | 3,551±136 (3,750 – 3,700) K |
| Age | 10.0±0.1 Myr |
| Other designations | |
| Erakis, Herschel’s Garnet Star, μ Cep, HD 206936, HR 8316, BD+58°2316, HIP 107259, SAO 33693 |
What is the diameter of Mu Cephei?
1.0893656 billion mi (2,520 R☉)Mu Cephei / Diameter
Is VV Cephei the biggest star?
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 |
Will Mu Cephei become a black hole?
It is believed to have started its life with around 25 solar masses. In spite of being only about 10 million years old, it has begun to fuse helium into carbon and is approaching the end of its life. It will eventually go out as a supernova, leaving behind a neutron star or a black hole, in the not-so-distant future.
How big is Betelgeuse?
383.4 million mi (887 R☉)Betelgeuse / Radius
Is Mu Cephei a red giant?
Mu Cephei (μ Cep) is a red supergiant located in the constellation Cepheus. With an average apparent magnitude of 4.08, it is the 10th brightest star in the constellation.
Can you see Stephenson 2/18 without a telescope?
Location. Stephenson 2-18 is a member of the open cluster Stephenson 2, which occupies an area of 1.8′ of the sky but is not visible in amateur telescopes. The cluster cannot be detected in visible light at all because it is heavily obscured by dust, but it can be seen in infrared light.
What is the colour of VV Cephei?
VV Cephei is a M2 COMP star based on the spectral type that was recorded in the Hipparcos star catalogue. VV Cephei is not part of the Cepheus constellation outline but is within the borders of the constellation. Based on the spectral type (M2 comp) of the star, the star’s colour is red .
What is the size of Cephei A?
VV Cephei A is a class M2 red supergiant which may be as large as 92% the size of Saturn’s orbit. Even the low-end estimates are larger than the orbit of Jupiter.
Is VV Cephei the same as HD 208816?
Not to be confused with W Cephei. VV Cephei, also known as HD 208816, is an eclipsing binary star system located in the constellation Cepheus, approximately 5,000 light years from Earth. It is both a B [e] star and shell star .
How close is VV Cephei to Earth?
The results from those tools have varied widely, so that VV Cephei may be as close to Earth as 1,500 AU or as far away as 5,000 AU. VV Cephei A is a class M2 red supergiant which may be as large as 92% the size of Saturn’s orbit.