Located about 150 million light-years away in the constellation of Canis Major (the Great Dog), NGC 2207 — the larger of the two — and its companion, IC form a magnificent pair. English astronomer John Herschel discovered them in
Hubble Ultra Deep Field 2014 - Astronomers using NASA's Hubble Space Telescope have assembled a comprehensive picture of the evolving universe — among the most colorful deep space images ever captured by the telescope. - Image Credit: NASA, ESA et al
The Hubble Space Telescope took a picture of the planetary nebula PK also known as ESO or Hen and commonly called Menzel 2 (Mz because it was discovered by the astronomer Donald Menzel in Read the details in the article!