Messier 18: Difference between revisions
(Created page with "essier 18 or M18 (also designated NGC 6613) is an open cluster of stars in the constellation Sagittarius. It was discovered by Charles Messier in 1764 and included in his ...") |
No edit summary |
||
| Line 3: | Line 3: | ||
==HGS Session References== | ==HGS Session References== | ||
==References==<references/>Found in HGS Manual on Page 108 Found in HGS Manual on Page 115[[Category: Ascension]][[Category: HGS Manual]] | |||
==References== | |||
<references/> | |||
Found in HGS Manual on Page 108 | |||
Found in HGS Manual on Page 115 | |||
[[Category: Ascension]][[Category: HGS Manual]] | |||
Revision as of 23:14, 2 April 2015
essier 18 or M18 (also designated NGC 6613) is an open cluster of stars in the constellation Sagittarius. It was discovered by Charles Messier in 1764 and included in his list of comet-like objects. From the perspective of Earth, M18 is situated between the Omega Nebula (M17) and the Sagittarius Star Cloud (M24). Its age is estimated at 32 million years. It is 4,900 light-years away.
HGS Session References
References
Found in HGS Manual on Page 108
Found in HGS Manual on Page 115