Is VV Cephei bigger than Uy scuti?
The currently (2020) accepted radius for UY Scuti is 755 solar radii, which means that the former record holder is in fact much smaller than VV Cephei.
Can you see Mu Cephei from Earth?
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.
Is Alderamin a binary star?
Alderamin is a Binary or Multiple star system. Using the most recent figures given by the 2007 Hipparcos data, Alderamin distance from Earth is 49.05 light years. The star’s name is a traditional/name which has been officially recognised by the I.A.U.
What is the size of Mu Cephei?
544.7 million mi (1,260 R☉)Mu Cephei / Radius
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.
Why is Alderamin so bright?
It is in the process of evolving away from the main sequence and become a subgiant, and eventually a red giant. Alderamin has an effective temperature of around 7,740 K, it is thus 1.3 times hotter than our Sun, and it is around 17 times brighter than our Sun.
What is the magnitude of Alderamin?
2.514Alpha Cephei / Magnitude
How big is the Uy scuti star?
738.35 million miUY Scuti / Radius
Is UY Scuti or Stephenson 2 18 bigger?
Stephenson 2-18 compared with UY Scuti WOH G64 has an estimated radius between 1,540 and 1,730 solar radii, which is considerably smaller than both St2-18 and the current runner-up, MY Cephei (2,061 R☉).
Is UY Scuti bigger than the sun?
The largest known star in the universe, UY Scuti is a variable hypergiant with a radius around 1,700 times larger than the radius of the sun. To put that in perspective, the volume of almost 5 billion suns could fit inside a sphere the size of UY Scuti.
What type of star is Alpha Cephei?
A8VnAlpha Cephei / Spectral type
What kind of star is Alpha Cephei?
Alderamin, Alpha Cephei (α Cep), is a white main sequence star located in the constellation Cepheus. With an apparent magnitude of 2.5141, it is the constellation’s brightest star. It lies at a distance of 49.05 light years from Earth….Alderamin – Alpha Cephei.
| Spectral class | A8Vn |
|---|---|
| Dec.: 49.09 mas/yr | |
| Mass | 1.74 M☉ |
| Luminosity | 17 L☉ |
| Radius | 2.3 R☉ |
Which is bigger UY Scuti or TON 618?
The largest star Some would say the largest object in the universe is UY Scuti, the largest known star. It’s a red supergiant with a mass “only” 7–10 times the mass of the Sun, but with a radius up to 1,708 times the size! That’s only 0.3% the size of TON 618, but obviously still stupendously large.
Is UY Scuti a Hypergiant?
The largest known star in the universe, UY Scuti is a variable hypergiant with a radius around 1,700 times larger than the radius of the sun.
Which is bigger UY Scuti or ton 618?
What is the estimated radius of Mu Cephei?
The estimated radius of Mu Cephei is between 1,260 and 1,650 times that of the Sun. If it replaced the Sun in our solar system, assuming a radius of 1,650 solar radii (7.7 astronomical units), it would extend between the orbits of Jupiter and Saturn.
What is the nearest star to Mu Cephei?
The nearest bright star to Mu Cephei is Alderamin, the constellation’s brightest star, which can be found using the stars that form Cassiopeia’s W. A line extended from Schedar through Caph, the stars on the right side of the W, points toward the star.
What is Mumu Cephei’s mass loss rate?
Mu Cephei has a mass loss rate of a few times 10 -7 solar masses per year. The mass loss has left it enshrouded in an envelope of dust that stretches up to 15,000 astronomical units from the star. The dust shell has an expansion velocity of 10 km/s -1, indicating that it formed about 2,000 to 3,000 years ago.
What is Mumu Cephei called now?
Mu Cephei does not have a formal name, but it is known as Herschel’s Garnet Star and has also been called Erakis. Neither of the two names has been officially approved by the International Astronomical Union (IAU).