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Credit & Copyright: Lorand Fenyes
Explanation:
The beautiful Trifid Nebula,
also known as Messier 20, is easy
to
find with a small telescope in the nebula rich constellation
Sagittarius.
About 5,000 light-years away, the colorful study in
cosmic contrasts shares
this
well-composed, nearly 1 degree wide field with
open star cluster
Messier 21
(top right).
Trisected by dust lanes
the Trifid itself is about 40 light-years across and
a mere 300,000 years old.
That makes it one of the
youngest star forming
regions in our sky,
with newborn and embryonic stars embedded in its
natal dust and gas clouds.
Estimates of the distance to open star cluster M21 are similar to M20's,
but though they share this gorgeous telescopic skyscape
there is no apparent connection between the two.
In fact, M21's stars are much older, about 8 million
years old.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: M 20 - emission nebula - open cluster
Publications with words: M 20 - emission nebula - open cluster
See also:
- APOD: 2024 June 10 Á Sh2 132: The Lion Nebula
- The 37 Cluster
- APOD: 2024 May 1 Á IC 1795: The Fishhead Nebula
- APOD: 2024 April 24 Á Dragons Egg Bipolar Emission Nebula
- APOD: 2024 March 13 Á The Seagull Nebula
- APOD: 2024 February 21 Á Seagull Nebula over Pinnacles Peak
- NGC 1893 and the Tadpoles of IC 410