posted on Oct, 14 2012 @ 08:34 AM
The image is 2.3 arcminutes by 2 arcminutes in size.. To try to have a view of what it looks like comparatively to known objects, the moon size if
approximately of 30 arcminutes (1/2 degree)
Here's a little sketch I've done using the perigee-apogee moon comparison map:
To get a rough estimate of the angular size of objects in space, you can go out on clear night when the moon is up. Extend your arm towards the sky.
Your fist, at arms length, covers about 10 degrees of the sky, your thumb covers about 2 degrees, and your little finger covers about 1 degree. If you
look at the Moon, it should take up about 1/2 a degree in the sky. The Big Dipper should be about 20 degrees (two fists at arms length) from one end
to the other.
To cover the whole celestial sphere, we must consider the number of square arcminutes in a complete sphere which is approximately 148,510,660.498
I'll let you do the estimation for the possible numbers of galaxies in the whole celestial sphere....
edit on 14-10-2012 by elevenaugust
because: (no reason given)