How many galaxies are there?
- StarryskyLv 71 month ago
A bit of math:
Size of the "Hubble deep field" area is 2.6 arc minutes on a side, or 1/24 millionth of the whole sky. https://en.wikipedia.org/wiki/Hubble_Deep_Field
More than 3000 galaxies in one "deep field image".
So the possible imaged total (if the Milky Way galaxy was not in the way) is 72 billion at least, probably much more.
As to the universe, which is mostly beyond our detection, the total could be many times the number that we can pick up with cameras.
- zipperLv 71 month ago
Honestly we do not know. What we do know is that the space is expanding and that they are moving away from us each month! With the Hupple Scope they have seen about a thousand more than they can see from earth. We may never know!
- Bulldog reduxLv 72 months ago
The latest estimate is 2.2 trillion in the observable universe.
- garryLv 52 months ago
that we can see or cant see is the question .
- What do you think of the answers? You can sign in to give your opinion on the answer.
- daniel gLv 72 months ago
Take a look at Hubble's deep field images. tens of thousands just in one image.
Tens of thousands of those images to complete a view of just the visible universe.
That amounts to about 200 billion observable galaxy's.
- ANDYLv 52 months ago
Since you did not mention the word "observable universe", the only answer you can get to "How many galaxies are there?" is "We don't know"!
- 2 months ago
In the visible universe, it's estimated to be about 100 to 200 billion; there may be more beyond the visible universe.
- Anonymous2 months ago
I0^I0 googol to googolplex times over amount of Galaxy jq
* * * * * * * * * *
, , , , , , , , , ,
- ?Lv 52 months ago
This is a, "how many grains of sand --" question ,for a beach of unknown size
- lenpol7Lv 72 months ago
No one knows. The Cosmos is so large we cannot individually count all the stars and galaxies.
However, I will not dispute the figure that your correspondent 'Duncan' has quoted.