NGC 6357 by Emily Dollak https://padlet.com/53767/praapqw8m26v Nebula Project {3-5-18} en-us 2018-03-05 14:29:59 UTC 2026-01-03 07:28:01 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Planets.png Name 53767 https://padlet.com/53767/praapqw8m26v/wish/238098790 NGC 6357 or the Lobster Nebula or the War and Peace Nebula ]]> 2018-03-05 14:38:41 UTC https://padlet.com/53767/praapqw8m26v/wish/238098790 Type 53767 https://padlet.com/53767/praapqw8m26v/wish/238100072 NGC 6357 is a diffuse nebula which means that depending on the temperature and age, it ca be either an emission nebula or a reflection nebula
- In the picture to the upper left it, it appears to be an emission nebula because it is younger.
-In the picture to the bottom right, it appears to be a reflection nebula because of the white/bluish color and the older age of it]]> 2018-03-05 14:40:27 UTC https://padlet.com/53767/praapqw8m26v/wish/238100072 Location in the universe 53767 https://padlet.com/53767/praapqw8m26v/wish/238100981 NGC 6357 is in the constellation Scorpius in the Milky Way ]]> 2018-03-05 14:41:52 UTC https://padlet.com/53767/praapqw8m26v/wish/238100981 53767 https://padlet.com/53767/praapqw8m26v/wish/238104390 2018-03-05 14:46:08 UTC https://padlet.com/53767/praapqw8m26v/wish/238104390 Discoverer and place 53767 https://padlet.com/53767/praapqw8m26v/wish/238105630  John Herschel discovered this nebula in 1837 from the Cape of Good Hope]]> 2018-03-05 14:47:43 UTC https://padlet.com/53767/praapqw8m26v/wish/238105630 53767 https://padlet.com/53767/praapqw8m26v/wish/238116090 2018-03-05 15:01:33 UTC https://padlet.com/53767/praapqw8m26v/wish/238116090 How was it created? 53767 https://padlet.com/53767/praapqw8m26v/wish/238116400 The nebula is ionized by the star cluster Pismis 24 which includes the massive multiple O4 and O4-5 star system as well as the Wolf-Rayet star WR 93, which is also a multiple star system with a class O7-9 companion.]]> 2018-03-05 15:02:04 UTC https://padlet.com/53767/praapqw8m26v/wish/238116400 Why is it red? Why that shape? 53767 https://padlet.com/53767/praapqw8m26v/wish/238116815 The overall red glow near the inner star forming region results from the emission of ionized hydrogen gas. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity.]]> 2018-03-05 15:02:37 UTC https://padlet.com/53767/praapqw8m26v/wish/238116815 53767 https://padlet.com/53767/praapqw8m26v/wish/238116906 NGC 6357 is actually a "cluster of clusters," containing at least three clusters of young stars, including many hot, massive, luminous stars. ]]> 2018-03-05 15:02:45 UTC https://padlet.com/53767/praapqw8m26v/wish/238116906 53767 https://padlet.com/53767/praapqw8m26v/wish/238117013 This composite contains X-ray data from Chandra (purple) plus infrared (orange) and optical data (blue)

]]> 2018-03-05 15:02:53 UTC https://padlet.com/53767/praapqw8m26v/wish/238117013 53767 https://padlet.com/53767/praapqw8m26v/wish/238117112 This composite image contains X-ray data from NASA's Chandra X-ray Observatory and the ROSAT telescope (purple), infrared data from NASA's Spitzer Space Telescope (orange), and optical data from the SuperCosmos Sky Survey (blue) ]]> 2018-03-05 15:03:02 UTC https://padlet.com/53767/praapqw8m26v/wish/238117112 53767 https://padlet.com/53767/praapqw8m26v/wish/238117208 Herschel cataloged it as h 3682 in his 1847 catalog. It became GC 4297 in his General Catalogue of 1864, and NGC 6357 in J.L.E. Dreyer's NGC.]]> 2018-03-05 15:03:11 UTC https://padlet.com/53767/praapqw8m26v/wish/238117208