The 9th-magnitude planetary nebula NGC 6543, which lies 3000 l.y. away in Draco. The complex shape of the gas loops thrown off by the central star 1000 years or so ago gives it the appearance of a cat’s eye.
http://hubblesite.org/image/1578/news_release/2004-27
- procedural language
- procedural semantics
- procedure
- procedure-oriented language
- Procellarum system
- process
- process algebra
- process calculus
- process control
- process-control system
- process costing
- process descriptor
- process design
- process dynamics
- process economics
- process engineering
- processes, geomorphological
- process flow diagram
- Processing and Archiving Centre
- process innovation
- process integration
- process intensification
- process model
- process modelling
- processor