Other then the Milky way Galaxy,how many "Spiral Galaxies" are there in the Universe?

Question

the ones that you know of

Answer 1

You got me there.

Answer 2

No one knows for sure but we do know round about numbers. For example, there are 400 billion other galaxies (all types included) in the Universe. And, further, our galaxy, a typical one, has 100 billion to one trillion (1000 billion) stars in total. And, even further, despite the prominence of spiral galaxies, most galaxies in the universe appear to be dwarf galaxies, another type than spiral so no numbers I could find. Maybe you can figure the number yourself using first principles. I'd try.

Ask how if you don't get it. Start with learning about the "local group" as it pertains to astronomy.

Answer 3

billions, trillions ,no one knows

Answer 4

Nobody yet knows if the universe is finite or infinite, so we can't tell you.  There are certainly at least billions of them.  Another problem in addition the ones others have mentioned above is that as we look further away we are looking back in time, so what exists 'now' is a bit indefinite anyway.

Answer 5

Lol... Love the answer above.

I'm not sure anyone has ever counted.

And I'm pretty darn sure it would be impossible to tell.

This is for several reasons, one being that there are so many galaxies out there, many too far away to be able to tell their structure, these trillions of galaxies are also constantly merging and splitting etc. So the number is constantly changing. There is also a problem in that we can't see most of the galaxies in the universe as they are in their present state (or obscured, made of dark matter etc.), the light coming from them, in some cases, is billions of years old, so we don't know about the galaxies as they cureently are.

Answer 6

some evidence today is showing us that our milky way (aka the milk of hera) is a "barred spiral" and not a circular one. always man thinks of himself as some integral part of this vast cosmos and divinely sparked at every stop in perfect geometry. alas, this is furthest from the fact.

Answer 7

1263576432598359861242346782387452364526... or there abouts

Answer 8

Too many to count or comprehend...I dont know much about Galaxies but i know its vast out there... and beautiful to look at..Wish i knew more..

Answer 9

there are about 130 billion galaxies.  If we use the smallest and largest statements shown below of the % that are spiral galaxies, we would get from 65 billion to 100 billion spiral galaxies.  There is a short list at the end, of the ones I found  in addition to the Milky Way.  I noticed that Dan G (another answerer) said there are 400 billion other galaxies.  I didn't find that number anywhere, but I guess it just goes to show that the various Astronomers and sites don't agree on the numbers.  If we said 50 - 77% of 400 billion, we would have 200 - 308 billion spiral galaxies.

More than half of all observed galaxies are spiral galaxies.

About 77% of the observed galaxies in the universe are spiral galaxies. Our own galaxy, the Milky Way, is a typical spiral galaxy.

Together with irregulars, spiral galaxies make up approximately 70% of galaxies in the local Universe.[3] They are mostly found in low-density regions and are rare in the centers of galaxy clusters.

“Spiral nebula” is an old term for a spiral galaxy. Until the early 20th century, most astronomers believed that objects like the Whirlpool Galaxy were just one more form of nebula that were within our own Milky Way galaxy. The idea that they might instead be other galaxies, independent of the Milky Way, was the subject of The Great Debate of 1920, between Heber Curtis and Harvard-based Harlow Shapley. In 1926, Edwin Hubble[8] observed Cepheid variables in several spiral nebulae, including the Andromeda Galaxy, proving that they are, in fact, entire galaxies outside our own. The term “spiral nebula” has since fallen into disuse.

Some irregular galaxies are small spiral galaxies that are being distorted by the gravity of a larger neighbour.

The Magellanic Cloud galaxies were once classified as irregular galaxies, but have since been found to contain barred spiral structures, and have been since re-classified as "SBm", a fourth type of barred spiral galaxy.

Triangulum

Whirlpool

Andromeda

Sunflower

M100, which is in the Virgo cluster

Pinwheel Galaxy - a class Sc spiral galaxy M101 (NGC 5457)

M83

ESO 269-57

NGC 1313: a starburst galaxy or barred spiral galaxy

NGC 3559, a barred spiral

Answer 10

The best one can do is give a percentage. In given clusters, count the ellipticals, count the sphericals, count the spirals. Then, in succession, find the percentage of each by dividing each count by total count. This will give the percentage of each. Of course, this will not give an answer to your specific question since there are countless galaxies in the universe. But at least you can compare types of galaxies with each other.

Answer 11

It is impossible to know and count how many, because there are probably more out there that we don't know about than we do.

And even if it's the ones that we know of, in the future even those might not be "classified" as spiral galaxies anymore. Look at what happened to Pluto- no longer a planet, poor thing.

Anyways, new ones could be forming every second, some could be disappearing every second, nobody knows. The ones we know of may be disappearing, which takes us off track and wrong. Everything is possible, it's just nobody has figured out a way, yet, to answer this question 100% correctly.

I hope this helps you!

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Answer 12

Nobody knows, It is an infinite amount