Explanation: These three bright nebulae are often featured in telescopic tours of the constellation Sagittarius and the crowded starfields of the central Milky Way. In fact, 18th century cosmic tourist Charles Messier cataloged two of them; M8, the large nebula left of center, and colorful M20 on the right. The third, NGC 6559, is above M8, separated from the larger nebula by a dark dust lane. All three are stellar nurseries about five thousand light-years or so distant. The expansive M8, over a hundred light-years across, is also known as the Lagoon Nebula. M20's popular moniker is the Trifid. Glowing hydrogen gas creates the dominant red color of the emission nebulae, with contrasting blue hues, most striking in the Trifid, due to dust reflected starlight. The colorful skyscape recorded with telescope and digital camera also includes one of Messier's open star clusters, M21, just above the Trifid.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Tumannost' Laguna - Trehrazdel'naya tumannost' - Strelec - zvezdy Publikacii so slovami: Tumannost' Laguna - Trehrazdel'naya tumannost' - Strelec - zvezdy
Sm. takzhe: Svet, temnota i pyl' v Trehrazdel'noi tumannosti Mess'e 24: zvezdnoe oblako v Strel'ce Prekrasnaya Trehrazdel'naya tumannost' Chernaya dyra razrushaet zvezdu: animaciya Glubokaya Laguna Zvezdy, pyl' i tumannost' v NGC 6559 V centre tumannosti Laguna Vse publikacii na tu zhe temu >>