What are fun Facts about Ursa Major?
Key Facts & Summary Ursa Major is the third largest constellation in the sky, covering up to 3.10% of the entire sky. Its brightest star is Alioth, with a magnitude of 1,77, and it is the 31st most luminous star in the night sky. Ursa Major is visible throughout the year in the northern hemisphere.
How old is the Alkaid star?
Eta Ursae Majoris
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Age | 10.0 ± 2.6 Myr |
| Other designations | |
| Alkaid, Benetnash, Benetnasch, Elkeid, η UMa, 85 UMa, BD+50°2027, FK5 509, GC 18643, HD 120315, HIP 67301, HR 5191, PPM 53742, SAO 44752. | |
| Database references |
What is the size of Alkaid star?
1.4698 million miEta Ursae Majoris / Radius
What is the temperature of Alkaid?
16,820 KEta Ursae Majoris / Surface temperature
What is the biggest star in the Big Dipper?
Dubhe is the brightest star in Ursa Major, with a magnitude of 1.8. This constellation also contains the noted visual double of Mizar and Alcor, which sit in the middle of the Big Dipper.
Is Alkaid a double star?
Alkaid, Eta Ursae Majoris (η UMa) is a blue main sequence star with an apparent magnitude of 1.86, located at a distance of 103.9 light years from Earth.
Is Alkaid a giant star?
Alkaid has an apparent magnitude of +1.86 and an absolute magnitude of -0.67. It is a very young star, being only around 10 million years old or so. Alkaid is much more massive than our sun, having 610% of the sun’s mass.
What type of star is Alkaid?
B3 VEta Ursae Majoris / Spectral type
Alkaid is a blue main-sequence star of spectral type B3 V, located at around 103.9 light-years / 31.9 parsecs away from the Sun. Alkaid, also known as Eta Ursae Majoris, is the third brightest star in the constellation of Ursa Major, the celestial Great Bear.
Is Ursa male or female?
The name Ursa is a girl’s name of Greek origin meaning “little female bear”.
Is Ursa an animal?
Ursa is a Latin word meaning bear.
What kind of star is Alkaid?
Star Facts: Alkaid. Alkaid (Eta Ursae Majoris) is a prominent star in the handle of the Big Dipper, an asterism which forms just a small part of the overall constellation of Ursa Major. With an apparent magnitude of +1.84, it is the third most luminous star in Ursa Major, and the 38th most luminous star in the entire night sky.
Is Alkaid a Big Dipper?
Alkaid (Eta Ursae Majoris) is a prominent star in the handle of the Big Dipper, an asterism which forms just a small part of the overall constellation of Ursa Major. With an apparent magnitude of +1.84, it is the third most luminous star in Ursa Major, and the 38th most luminous star in the entire night sky.
How big is Alkaid?
Alkaid is located at around 103.9 light-years / 31.9 parsecs away from the Sun. It is relatively close to us, and since it is the 38 th brightest star in the night sky, it can be seen with the naked eye. It shares its title as the 38 th brightest with another star, Sargas – Theta Scorpii. Alkaid is much more massive and bigger than our sun.
Is Alkaid bigger than the Sun?
Alkaid is much more massive and bigger than our sun. It has 610% of the sun’s mass or 6.1 solar masses. Alkaid’s radius has been estimated to be at around 3.4 solar radii, or 340% the sun’s radius. Since a star’s diameter is usually twice its radius, Alkaid is several times bigger than our sun.