Sketch negative, 2000/4/29, with 8" Dobsonian, 25 eyepiece. 1 degree field of view. Observed from Greene county, Pittsburgh. Large, faint, round, no obvious necleus.
Tip: to search within my pages only, keep inurl:zhuxj in your query. For example, inurl:zhuxj venus transit.
All images by Jerry Xiaojin Zhu unless noted otherwise. Feel free to use them for your personal enjoyment. For other usage please contact the author at jerryzhu@gmail.com