Near Earth Asteroids are the ones whose orbits come very close to the orbit of planet Earth. Astronomers want to keep an eye on these objects all the time and since they cannot do it, amateur astronomers happily do that for them. As of today, there are 24,158 Near Earth Asteroids known to us.

For the last few months, I have been actively involved in the follow-up observations of Near Earth Asteroids from my observatory (N31) and as far as I know, this is the only observatory which is observing NEA from Pakistan.

The following picture is the stacked image of 100 NEA 2013 PY6 images, which I observed at around 17 magnitude. The three straight lines are the lights of an airplane, which crossed the field of view of the telescope.

You can see how many asteroids are in fact in the field of view

And this is the orbit (in Grey) of this Near Earth Asteroid.