Galaxies

Higher, as the increased star formation rate increases the population of massive stars that can lead to supernovae explosions. Starburst galaxies have a higher concentration of gas and dust, leading to more frequent and intense supernova events compared to a galaxy like the Milky Way.

The constelation known as the Big Dipper in USA or Ursa Major (to give it's correct name) is a collection of 7 Stars and is one of the most recogised and easily spotted contellation in the Northern Hemisphere.

It has many other names. In the UK it is called the Plough, in Germany Großer Wagen or "great wagon", Carlswæn or wagon.

By observing the rotation, and calculating the diameter. If you know the diameter of the galaxy, a certain rotation speed implies a certain mass (to be stable at that speed). It turns out there is 5-10 times more mass than the known masses. Read about "dark mass" for more details.

By observing the rotation, and calculating the diameter. If you know the diameter of the galaxy, a certain rotation speed implies a certain mass (to be stable at that speed). It turns out there is 5-10 times more mass than the known masses. Read about "dark mass" for more details.

By observing the rotation, and calculating the diameter. If you know the diameter of the galaxy, a certain rotation speed implies a certain mass (to be stable at that speed). It turns out there is 5-10 times more mass than the known masses. Read about "dark mass" for more details.

By observing the rotation, and calculating the diameter. If you know the diameter of the galaxy, a certain rotation speed implies a certain mass (to be stable at that speed). It turns out there is 5-10 times more mass than the known masses. Read about "dark mass" for more details.

A central dominant galaxy is typically the largest and most massive galaxy at the center of a galaxy cluster. It is surrounded by smaller satellite galaxies and can influence the dynamics and evolution of the entire cluster through its strong gravitational pull. These galaxies often exhibit unique properties compared to other galaxies in the cluster.

Major Diameter (arcmin) : 6.5

Minor Diameter (arcmin) : 5.6

Quite simply, this is the way constellations are defined. Constellations are arbitrary groupings of stars; somebody considered that a certain group of stars looks like a bear, and called it "big bear". This is one of the 88 official constellations recognized by modern Astronomy; you can look for other images in the stars, i.e., groups of stars. Those groups might be part of a constellation, or they may span more than one constellation. The Big Dipper happens to be part of a larger "official" constellation: the Big Bear (Ursa Major).

Quite simply, this is the way constellations are defined. Constellations are arbitrary groupings of stars; somebody considered that a certain group of stars looks like a bear, and called it "big bear". This is one of the 88 official constellations recognized by modern Astronomy; you can look for other images in the stars, i.e., groups of stars. Those groups might be part of a constellation, or they may span more than one constellation. The Big Dipper happens to be part of a larger "official" constellation: the Big Bear (Ursa Major).

Quite simply, this is the way constellations are defined. Constellations are arbitrary groupings of stars; somebody considered that a certain group of stars looks like a bear, and called it "big bear". This is one of the 88 official constellations recognized by modern Astronomy; you can look for other images in the stars, i.e., groups of stars. Those groups might be part of a constellation, or they may span more than one constellation. The Big Dipper happens to be part of a larger "official" constellation: the Big Bear (Ursa Major).

Quite simply, this is the way constellations are defined. Constellations are arbitrary groupings of stars; somebody considered that a certain group of stars looks like a bear, and called it "big bear". This is one of the 88 official constellations recognized by modern Astronomy; you can look for other images in the stars, i.e., groups of stars. Those groups might be part of a constellation, or they may span more than one constellation. The Big Dipper happens to be part of a larger "official" constellation: the Big Bear (Ursa Major).

The Sun is about 332,946 times more massive than the Earth. It is about

1,300,000 times the volume of Earth.

As for the Sun and the Milky Way - The Milky way is composed of roughly 100 billion stars, so one can say that because the Sun is an average star, the Milky Way is, very roughly, 100 billion times more massive than the Sun.

Another viewpoint: The latest best estimates have the Milky Way Galaxy containing about 500 billion stars.

Using that number and a more accurate way of estimating the total mass of the stars gives: Total mass of our Galaxy is about 1.9 thousand billion times the

mass of the Sun.

Notice that's an estimate of the total mass of the Galaxy, including dust and gas.

Then again there's "dark matter" of course, but let's keep it simple.

Planet Pluto is in solar system and Solar system is in the Universe t, hence Pluto is also in our universe.
However Pluto was not part of original Solar sytem but was a comet which was captured in a planetary orbit.

Earth is located in the Milky Way galaxy, specifically in one of the spiral arms. In terms of the universe, Earth is located in the Local Group of galaxies, which is a collection of about 54 galaxies that includes the Milky Way and the Andromeda Galaxy.

The Andromeda Galaxy is the closest one to the sun. Our galaxy is the closest one of all.

astronomers collect data by diverse technical equipment:

- by space probes

-by telescopes

-by satellites

-and by other technical equipment

In general they often also use radiometry/radiation and take pictures of astronomic objects, sometimes they also land on some objects and take samples, sometimes also by meteorites (that strike on earth).

Early astronomers had poor instruments for observing the heavens. Large practical optical telescopes have only existed for about 350 years, and until the 20th century, there was no concept of "radio" at all - far less "radio astronomy". The idea of the "Big Bang" was ridiculed right up until Penzias and Wilson discovered the background cosmic radiation, for which they won the Nobel Prize.

Elliptical galaxies tend to be reddish in color because they are made up of older stars that emit more red light. These galaxies have used up most of their gas and dust, resulting in a lack of ongoing star formation. This makes their overall color appear reddish compared to younger, bluer galaxies.

The simple answer would be to divide 500 billion by 120, which gives an answer of slightly over four billion. The reality might be different, however. Just because a civilization is broadcasting radio signals does not mean that we necessarily can detect those signals. The Milky Way galaxy is 200,000 light years across on its long axis (80,000 on its shorter axis) and there are some stars which are so far away that it would take tens of thousands, even a hundred thousand years for a radio message to reach the Earth, and the hypothetical broadcasting civilization might not have been broadcasting for that long. And even if they were broadcasting long enough, the signal strength might not be enough to allow us to separate it from the background noise. And we might not be listening on the same frequency on which they are broadcasting. Those are just the most immediate complications.

Pluto was first discovered in 1930 by Clyde W. Tombaugh at the Lowell Observatory in Flagstaff Arizona. Astronomers had long predicted that there would be a ninth planet inthe Solar System, which they called Planet X. Only 22 at the time, Tombaugh was given the laborious task of comparing photographic plates. These were two images of a region of the sky, taken two weeks apart. Any moving object, like an asteroid, comet or planet, would appear to jump from one photograph to the next.

After a year of observations, Tombaugh finally discovered an object in the right orbit, and declared that he had discovered Planet X. Because they had discovered it, the Lowell team were allowed to name it. They settled on Pluto, a name suggested by an 11-year old school girl in Oxford, England (no, it wasn't named after the Disney character, but the Roman god of the underworld).

The Solar System now had 9 planets.

Astronomers weren't sure about Pluto's mass until the discovery of its largest Moon, Charon, in 1978. And by knowing its mass (0.0021 Earths), they could more accurately gauge its size. The most accurate measurement currently gives the size of Pluto at 2,400 km (1,500 miles) across. Although this is small, Mercury is only 4,880 km (3,032 miles) across. Pluto is tiny, but it was considered larger than anything else past the orbit of Neptune.

Over the last few decades, powerful new ground and space-based observatories have completely changed previous understanding of the outer Solar System. Instead of being the only planet in its region, like the rest of the Solar System, Pluto and its moons are now known to be just a large example of a collection of objects called the Kuiper Belt. This region extends from the orbit of Neptune out to 55 astronomical units (55 times the distance of the Earth to the Sun).

Astronomers estimate that there are at least 70,000 icy objects, with the same composition as Pluto, that measure 100 km across or more in the Kuiper Belt. And according to the new rules, Pluto is not a planet. It's just another Kuiper Belt object.

The major feature of the Universe is still unknown. Remember that there are black holes too, which can be more massive than some galaxies. A reasonable knowledge of the Universe shall come gradually, when more poweful space telescopes shall be developed, improved.

The spiral galaxy NGC 4414 is approximately 62 light years away from planet Earth. It has been photographed by the Hubble Telescope multiple times. Its outer arms appear bluer because they are constantly forming new stars so it would be difficult to say how many stars might be in the galaxy.

A star become a red giant when the core contracts, the temperature increases and the outer layers of the star begin to expand. By the end of this phase, the star can be 10 to 100 times it diameter. When the temperature in the core reaches 100 000 000°C, the helium start fusing into carbon. Because the star has expanded to such an enormous size, that the outer layer are much cooler than when the star was a main sequence star. It therefore appears red, earning the name of red giant.

I'm unable to draw images. However, I can describe the Milky Way galaxy to you! From the top, it appears as a spiral disk with spiral arms spiraling out from the center. From the side, it looks like a flat disk with a bulging central region, surrounded by a halo of stars and dark matter.

Black holes do not form on Earth. Black holes are created when a massive star collapses in on itself, leading to an incredibly dense core where gravity is so strong that not even light can escape. These events typically occur in space, not on Earth.

Im 100% sure that its unkown to man how many stars, solar sytsems, planets, moons, galaxys, and everything in the univers.

Answer2: My estimate is about a trillion 1012 galaxies.

Answer 3: A recent report by a joint research group from 2 eminent universities (1 in USA, the other in UK) postulated that the number of stars in the Universe is 3 septillion - that's 3 followed by 24 zeros, a number you won't be able to get your head around! If you know the average number of stars in a galaxy, say 200million, you can readily find your answer.

Asteorite is not a word found in the English language. The closest I can come is asteroid which is a rock or boulder orbiting the sun along with millions of others between the orbits of Mars and Jupiter.

The LMC and the SMC (Large and Small Magellanic Clouds) are named afterFernão de Magalhães, better known as Ferdinand Magellan. He was the first to bring the MC into common Western knowledge during his circumnavigation of the Earth in 1519--22.