Messier 17: Omega Nebula
science·@jonathanxvi·
0.000 HBDMessier 17: Omega Nebula
<html> <p><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/ESO-The_Omega_Nebula-phot-25a-09-fullres.jpg/800px-ESO-The_Omega_Nebula-phot-25a-09-fullres.jpg" width="800" height="800"/></p> <p> <em>Composite images obtained with the 3.58-metre NTT at </em><a href="https://en.wikipedia.org/wiki/La_Silla_Observatory"><em>La Silla Observatory</em></a><em>. Image credit: </em><a href="https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/ESO-The_Omega_Nebula-phot-25a-09-fullres.jpg/800px-ESO-The_Omega_Nebula-phot-25a-09-fullres.jpg"><em>ESO</em></a></p> <p> In general, the vast majority of nebulae are known to be spectacular. However, in this case, the Omega Nebula also presents a particularity that is not very often. From Earth we see it from the side, and not from the front. </p> <p> The Omega Nebula was discovered by <a href="https://en.wikipedia.org/wiki/Jean-Philippe_de_Ch%C3%A9seaux">Philippe Loys of Cheseaux</a> (who discovered 5 more nebulae) in 1745. As you have already seen, his work was not well known, and <a href="https://en.wikipedia.org/wiki/Charles_Messier">Charles Messier</a> also discovered it on his own account on June 3, 1764. </p> <p> Messier 17 is at a distance of between 5,000 and 6,000 light years from Earth. It has a diameter of about 15 light years and a mass about 800 times that of the Sun. The nebula is also part of a cloud of interstellar matter that has a diameter of about 40 light years, which has a mass equivalent to 30,000 times that of the Sun. It is considered one of the brightest and most massive star-forming areas in the galaxy. </p> <p> The dark dust filaments in the center of the Omega nebula were created in the atmospheres of cold giant stars and in the remnants of supernova explosions. The red and blue tones emerge from the incandescent gas heated by the radiation of nearby massive stars. The points of light are young stars, some brighter than 100 suns. Dark globules indicate even younger systems, clouds of gas and dust that are condensing to form stars and planets. </p> <p> More details here: <a href="https://en.wikipedia.org/wiki/Omega_Nebula">Messier 17</a></p> <p> <img src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Omega_Nebula_M17.jpg/506px-Omega_Nebula_M17.jpg" width="506" height="599"/></p> <p> <em>Picture of M17 captured in narrowband by amateur astronomer Chuck Ayoub. Image source: </em><a href="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Omega_Nebula_M17.jpg/506px-Omega_Nebula_M17.jpg"><em>[1]</em></a></p> <p><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/VST_image_of_the_spectacular_star-forming_region_Messier_17_%28Omega_Nebula%29.jpg/800px-VST_image_of_the_spectacular_star-forming_region_Messier_17_%28Omega_Nebula%29.jpg" width="800" height="800"/></p> <p> First released <a href="https://en.wikipedia.org/wiki/Very_Large_Telescope">VLT</a>Survey Telescope image shows the star-forming region Messier 17. Image source: <a href="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/VST_image_of_the_spectacular_star-forming_region_Messier_17_%28Omega_Nebula%29.jpg/800px-VST_image_of_the_spectacular_star-forming_region_Messier_17_%28Omega_Nebula%29.jpg">[2]</a></p> <p><iframe width="560" height="315" src="https://www.youtube.com/embed/XmsriWQ6mjc" frameborder="0" allowfullscreen></iframe></p> <p> <a href="https://www.youtube.com/channel/UCIhYoC2VIAJqCkoIWNHBQ3Q">European Southern Observatory (ESO)</a> </p> <p><br></p> <p><img src="https://s4.postimg.org/h9sxo6s5p/voto.gif" width="1277" height="240"/></p> </html>
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