Lagoon nebula

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Lagoon Nebula,

bright, diffuse nebulanebula
[Lat.,=mist], in astronomy, observed manifestation of a collection of highly rarefied gas and dust in interstellar space. Prior to the 1960s this term was also applied to bodies later discovered to be galaxies, e.g.
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 in the southern constellation Sagittarius; cataloged as M8 or NGC 6526. It is visible to the naked eye and has an angular area larger than that of the full moon. The central parts are extremely bright, and some stars can be seen embedded in the nebulosity. Because of the nebula's large size, light from its stars cannot illuminate all of the associated interstellar gas and dust. Thus, parts of it appear blacker than the surrounding sky.

Lagoon nebula

(M8; NGC 6523) An emission nebula in the form of an H II region that lies about 1 kiloparsec away in the direction of Sagittarius. It contains the open cluster NGC 6530. Its total apparent magnitude (5.8) makes it easily visible with binoculars.

Lagoon Nebula

[lə′gün ′neb·yə·lə]
A patchy, luminous gaseous nebula that appears to be surrounded by a much larger region of cold, neutral hydrogen.
References in periodicals archive ?
Also known as Sh 2-29, Sharpless 29 is located about 5500 light-years away in the constellation of Sagittarius (The Archer), next door to the larger Lagoon Nebula.
Next we'll visit the gorgeous Lagoon Nebula (M8), named for the darkling channel within, like a shadowy bay lapping on a silver shore.
EoACA[pounds sterling]The lunar eclipse of June 26 will occur at the moonEoACAOs ascending node in western Sagittarius, about three degrees east of the Lagoon Nebula.
A panorama titled "Inside the Lagoon Nebula," showing a whirlwind of spectacular star formation some five light years across.
Within this constellation is M8, the Lagoon nebula,another example of an emission nebula like M42.
Animated graphics and high-resolution images (optimized specifically for the New iPad) enable WONDERS app users to discover a spectacular array of 3D marvels of the Universe, from the beauty of the lagoon nebula to the daunting vision of a black hole sucking down a hapless star.
Sometimes the most overnight fun can be had in chasing down old favorites best viewed in the warm months: that brilliant line of stars in the Lagoon Nebula (M8) or the spangled shot of the Ptolemy Cluster (M7).
Now sweep westward to M8, the Lagoon Nebula, in the Milky Way cloud that rises like steam from the Teapot's spout.
Now sweep westward to M8, commonly called the Lagoon Nebula, which is embedded in the hazy band of the Milky Way that rises like steam from the Teapot.
One striking nursery of youthful stars is the Lagoon Nebula (M8), which appears as a brighter patch in the Milky Way from my semirural home.
Just above the star cloud glows the Lagoon Nebula, M8, the summer sky's answer to the Great Orion Nebula of winter.