I took this image of the Crater Alphonsus. I used my 5.1" Newtonian and stacked roughly 400 frames to get the final picture. The image shows the Crater trio that also includes the craters Ptolemeus and Arzachel.
Our community is FREE to join. To participate you must either login or register for an account.
Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. View our Privacy Policy.
Astronomy Magazine