2006-09-04 13:44:32 · 6 answers · asked by noor s 1 in Science & Mathematics ➔ Earth Sciences & Geology
By 'HAVE' I think you mean galaxies that have been (1) Identified with a number and (2) located scientifically so it can be seen by others.
So, in the Northern hemisphere, they have located 50,517 galaxies. [1]
The ARP list for the Southern Hemisphere has 13,163 items, but some of them may be a dwarf galaxy or a nebula rather than a galaxy. [2]
There are millions of unidentified galaxies out there that can only be seen by the Hubble Space Telescope. They have not been individually identified, for the most part, and they can not be seen by other telescopes.
;-D Shine on, shine on Harvest Moon, up in the sky!
2006-09-04 13:52:17 · answer #1 · answered by China Jon 6 · 1⤊ 0⤋
It is estimated that there are as many as 200 billion galaxies in the observable universe, but we aren't able to see all of them yet as our telescopes are not big enough. This number is interesting because it is similar in magnitude to the number of stars estimated to be in our Galaxy, roughly 100 billion (100,000,000,000).
2006-09-05 01:36:41 · answer #2 · answered by JFAD 5 · 0⤊ 0⤋
Hundreds of billions. If you want to see some cool pictures check out the lates images taken by the Hubble Space Telescope at htpp://hubblesite.org
2006-09-04 21:38:52 · answer #3 · answered by jorge f 3 · 0⤊ 0⤋
Too Many to count on two hands and two feet.
2006-09-05 00:55:20 · answer #4 · answered by Anonymous · 0⤊ 0⤋
We only have one that we are part of but there are probably billions
2006-09-04 20:50:13 · answer #5 · answered by Bohemian 4 · 0⤊ 0⤋
Millions. But "we" don't actually own it.
2006-09-04 20:47:21 · answer #6 · answered by Kiri 4 · 0⤊ 0⤋