Nice, faint halo around this one. Halos are actually very common features for planetary nebulas but they often aren’t included because they are so faint. In Hubble’s case, a lot of the time the halo is just too big to be included in the frame.
This is a single channel of data which I colorized.
All channels: hst_08345_10_wfpc2_f656n_pc_sci
North is up.
Hubble data is public domain, but I put a lot of work into combining it into beautiful color images. The minimal credit line should read: NASA / ESA / J. Schmidt
This work is licensed under a Creative Commons Attribution 3.0 Unported License.