47 Ursae Majoris is about 46 light years away.
There is Vulpecula,Ursa Major,Ursa Minor
ursa major
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Ursa Major is a constellation, made up of many different stars. "It" doesn't have a temperature. Each star in it has it's own temperature.
Ursa Minor or "The Little Bear" is a constellation. It is made up of many stars, each one having it's own unique distance from Earth. It only looks like Ursa Minor from our perspective.
The constellation Ursa major, is made up of 17 stars. The big dipper is found within this constellation and makes up for 7 of the stars.
Ursa Major means "Big Bear" Ursa means Bear, and Major means large. Ursa Minor means Ursa as in Bear and minor as in small. These names either came from the Greeks. In the U.S.A., Ursa Minor and Ursa Major are Little Dipper and Big Dipper.The Greeks looked at the two and said, "Those stars look like a little bear and a big bear" That's how Ursa Major and Ursa Minor got there name. Now, people in the U.S.A. thought that the Ursa Major and Ursa Minor looked like dippers. Scientists call them Ursa Major and Ursa Minor, I personally call them Ursa Major and Ursa Minor, but some children and adults call them Little Dipper and Big Dipper and that's how they got there name.Who discovered the Ursa Major?AnswerThe Ursa Major was known to astronomers before the medieval period,therefore the exact person is unknown.This is known as the ancient Indians called it "The Saptarishi"(Seven Saints,namely Kritu,Pulah,Pulatsya,Atri,Angira,Vashishtha,and Mareech)and believed that the sages had been grouped together.
The question is vague. There are many stars called "pointer" stars. For example, two of the stars in Ursa Major lie along a line that passes very near Polaris. A completely different set of stars in Ursa Major form an arc that passes near Regulus. There are plenty of other such astronomical coincidences.
Mizar and Alcor are in a sextuplet system in the constellation Ursa Major.Mizar of Zeta Ursa Majoris (actually 4 stars) is one of the stars in the asterism "the Big Dipper" or "the Plough".Alcor or 80 Ursa Majoris is a binary system that is orbiting the Mizar Systrem.All 6 stars are also part of the Ursa Major Moving Group.Mizar A Sytem - Distance from earth 78 light years. Orbit each other every 20 days 12 hours and 55 minutes.Mizar A-A - Spectral type A2 V.Mizar A-B - Spectral type A2 V.Mizar B System - Seperation from Mizar A - 380 AU. Orbital period with Mizar A of many thousands of yearsMizar B-A - Spectral type A1 V.Mizar B-B - Spectral type A7 V.Alcor System - Seperation from Mizar 74,000 AU.Alcor A - Spectral Type A5 V.Alcor B - Spectal Type M? V. Red dwarf.
They are 3 different constellations. So they look different, have different stars, are in different parts of the sky, are seen at different times. There are many other differences too.
Trillions, or more than that: Any star that is in the same general direction is considered to be in that constellation.
It depends where you are on Earth. You can see it all year round from many places in the Northern Hemisphere. The constellations are called "circumpolar" when they are always above the horizon, but it does depend on the latitude of the observer.