11/17/2023 0 Comments Hubble reflection nebula![]() Photographed by NASAs Hubble Space Telescope, Janua. “Hubble studied NGC 6891 as part of efforts to gauge the distances to nebulae, and to learn more about how their structures formed and evolved,” the researchers noted. Download stock image by HUBBLE: NEBULA The reflection nebula NGC 1999 in the constellation Orion. “The image also reveals filaments and knots in the nebula’s interior, surrounding the central white dwarf star.”įrom their motions, the astronomers estimated that one of the shells is 4,800 years old while the outer halo is some 28,000 years old, indicating a series of outbursts from the dying star at different times. “The new Hubble image reveals a wealth of structure, including a spherical outer halo that is expanding faster than the inner nebula, and at least two ellipsoidal shells that are orientated differently,” Hubble astronomers said. The object is made up of gas that’s been ionized by a central white dwarf, which stripped electrons from NGC 6891’s hydrogen atoms.Īs the energized electrons revert from their higher-energy state to a lower-energy state by recombining with the hydrogen nuclei, they emit energy in the form of light, causing the nebula’s gas to glow. ![]() Like a flashlight beam shining off the wall of a cave, the star is reflecting light off the surface of pitch black clouds of cold gas laced with dust. NGC 6891 was discovered on Septemby the English astronomer Ralph Copeland. Caption NASA's Hubble Space Telescope has caught the eerie, wispy tendrils of a dark interstellar cloud being destroyed by the passage of one of the brightest stars in the Pleiades star cluster. NGC 6891 is a bright, asymmetrical planetary nebula in the northern constellation of Delphinus.Īlso known as BD+12 4266, HD 192563 and IRAS 20127+1233, the nebula lies at a distance of 11,784 light-years. Image Description and Details : One of the first images taken after NASA astronauts repaired the Hubble Space Telescope in December 1999, was NGC 1999, a nebula in the constellation Orion. There is something about the M78 reflection nebula in Orion that has captivated me since the first time I saw it. ![]() It is the brightest diffuse reflection nebula in a group of nebulae that includes NGC 2064, NGC 2067, and NGC 2071. Balick, University of Washington / Gladys Kober, NASA & Catholic University of America. Messier 78 (NGC 2068) is a beautiful blue reflection nebula in the constellation Orion. This Hubble image shows NGC 6891, a planetary nebula located 11,784 light-years away in the constellation of Delphinus. ![]()
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