NGC 6818
Dennis Fischer <[email protected]>
| Newsgroups | gmane.culture.sf.literature |
|---|---|
| Message-ID | <[email protected]> |
This colorful bubble is a planetary nebula called NGC 6818, also known as the Little Gem Nebula. The rich glow of the cloud is just over half a light-year across — humongous compared to its tiny central star — but still a little gem on a cosmic scale.