I1

You decide to look for the supernova yourself. You have a telescope with a focal length of 1m, and you have three eyepieces with focal lengths of 4 mm, 10 mm and 20 mm respectively (all with an apparent field of view of 43 degrees). You decide to start by finding 1 Cen (about 20 arcminutes from NGC4945), and navigating from there. (a) Which eyepiece will give you the highest magnification and what is this magnification? [2 marks] (b) Which eyepiece will give you the widest field of view? Will you be able to see both NGC4945 and 1 Cen in this eyepiece at the same time?