What type of star is Merak?
A1IVps
Beta Ursae Majoris/Spectral type
Merak is a bluish-white subgiant star of spectral type A1IVps. The star is located at around 79.7 light-years / 24.45 parsecs away from the Sun. Merak, also designated as Beta Ursae Majoris, is the fifth brightest star in the constellation of Ursa Major.
Is Merak a main-sequence star?
Merak, also designated as β Ursae Majoris (beta Ursae Majoris), is a variable main-sequence star in the constellation of Ursa Major. Merak visual magnitude is 2.37, making it the 80th brightest star in the sky.
What is the classification of the star Dubhe?
K0III + F0V
Alpha Ursae Majoris/Spectral type
Which stars are the dimmest?
Blue stars tend to be the brightest, and red stars the dimmest.
Is Merak a binary star?
2.04), Merak (Beta UMa, mag. 2.37), Phecda (Gamma UMa, 2.438), Psi Ursae Majoris (mag….Merak – Beta Ursae Majoris.
| Spectral class | A1IVps |
|---|---|
| Distance | 79.7 ± 0.3 light years (24.45 ± 0.10 parsecs) |
| Parallax | 40.90 ± 0.16 mas |
| Radial velocity | -12.0 km/s |
| Proper motion | RA: +81.43 mas/yr |
What is the luminosity of Merak?
63.02 L☉
Beta Ursae Majoris/Luminosity
How far away is Merak the star?
79.75 light years
Beta Ursae Majoris/Distance to Earth
Using the most recent figures given by the 2007 Hipparcos data, Merak distance from Earth is 79.75 light years. The star’s name is a traditional/name which has been officially recognised by the I.A.U.
What is the meaning of Merak?
: a blue star of the second magnitude that is seen in the constellation Ursa Major and forms part of the base of the Big Dipper The outer two stars in the cup of the Big Dipper are called Dubhe and Merak.
How far is Dubhe from Merak?
1.79), Alkaid (Eta UMa, mag. 1.86), Mizar (Zeta UMa, mag. 2.04), Merak (Beta UMa, mag….Dubhe – Alpha Ursae Majoris.
| Spectral class | K0III + F0V |
|---|---|
| Distance | 123 ± 2 light years (37.7 ± 0.7 parsecs) |
| Parallax | 26.54 ± 0.48 mas |
| Radial velocity | -9 km/s |
| Proper motion | RA: -134.11 mas/yr |
What is the luminosity of Dubhe?
316 L☉
Alpha Ursae Majoris/Luminosity
Which is bigger Rigel or Betelgeuse?
Betelgeuse is a red supergiant — the largest class of stars. Rigel is a blue supergiant. Like Betelgeuse, it is much bigger and heavier than the Sun. It’s surface is thousands of degrees hotter, however, so it shines blue-white.