{"id":447,"date":"2026-04-10T02:18:32","date_gmt":"2026-04-10T02:18:32","guid":{"rendered":"https:\/\/cosmosimager.com\/staging\/3153\/?page_id=447"},"modified":"2026-04-10T02:18:33","modified_gmt":"2026-04-10T02:18:33","slug":"ngc6992-eastern-veil-nebula","status":"publish","type":"page","link":"https:\/\/cosmosimager.com\/staging\/3153\/ngc6992-eastern-veil-nebula\/","title":{"rendered":"NGC6992 – Eastern Veil Nebula"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

NGC 6992, commonly known as part of the Eastern Veil Nebula<\/em>, is a segment of the larger Veil Nebula supernova remnant located in the constellation Cygnus. This vast structure is the expanding debris field from a massive star that exploded approximately 8,000 to 10,000 years ago. The remnant lies about 2,400 light-years from Earth and spans several degrees across the sky, corresponding to tens of light-years in physical size.<\/p>\n\n\n\n

The delicate, filamentary structures seen in this image are shock fronts\u2014regions where the expanding blast wave from the supernova interacts with the surrounding interstellar medium. As the shock wave propagates outward at hundreds of kilometers per second, it heats and ionizes the gas, causing it to emit light in specific wavelengths. The thin, thread-like appearance arises because we are viewing the edge of these shock fronts nearly edge-on, dramatically enhancing their apparent brightness and definition.<\/p>\n\n\n\n

The different colors in this image represent emission from various elements and ionization states. Oxygen emission (OIII) traces the hotter, higher-energy regions of the shock, while hydrogen and sulfur emissions (H-alpha and SII) highlight cooler, denser regions within the expanding shell. Together, they reveal the complex physical processes at work as the supernova remnant evolves and mixes with the surrounding interstellar environment.<\/p>\n\n\n\n

This image was created using narrowband (SII, H-alpha, OIII) data acquired from Arnold, CA between August 1 and September 5, 2021, with a total integration time of 18 hours. The SHO palette emphasizes the intricate shock structure and subtle variations in ionization across the nebula, bringing out the fine filamentary detail that characterizes this iconic supernova remnant.<\/p>\n","protected":false},"excerpt":{"rendered":"

NGC 6992, commonly known as part of the Eastern Veil Nebula, is a segment of the larger Veil Nebula supernova remnant located in the constellation Cygnus. This vast structure is the expanding debris field from a massive star that exploded approximately 8,000 to 10,000 years ago. The remnant lies about 2,400 light-years from Earth and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"nf_dc_page":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-447","page","type-page","status-publish","hentry"],"yoast_head":"\nNGC6992 - Eastern Veil Nebula - William D Brown Astrophotography<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cosmosimager.com\/staging\/3153\/ngc6992-eastern-veil-nebula\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NGC6992 - Eastern Veil Nebula - William D Brown Astrophotography\" \/>\n<meta property=\"og:description\" content=\"NGC 6992, commonly known as part of the Eastern Veil Nebula, is a segment of the larger Veil Nebula supernova remnant located in the constellation Cygnus. 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