https://hgastro.github.io/tags/ngc7293/Recent content in Ngc7293 on Suburban Backyard Astro SightsHugo -- gohugo.ioenhgastroblog@gmail.comhgastroblog@gmail.comAll images and content on this website © 2025 Howard GramsMon, 01 Jan 2024 00:00:00 +0000https://hgastro.github.io/posts/2024-01-01-helix-revisited/Mon, 01 Jan 2024 00:00:00 +0000hgastroblog@gmail.comhttps://hgastro.github.io/posts/2024-01-01-helix-revisited/<p>The Helix Nebula is a stunning example of a planetary nebula -— a glowing shell of ionized gas expelled by a dying star. The star expels its outer layers of gas, leaving only its small, hot core. Radiation from the core energizes that gas, causing it to glow in a rainbow of colors. About 650 light-years away, the Helix is one of the closest and brightest such nebulae.</p>https://hgastro.github.io/posts/2020-11-10-rings-in-the-sky/Tue, 10 Nov 2020 00:00:00 +0000hgastroblog@gmail.comhttps://hgastro.github.io/posts/2020-11-10-rings-in-the-sky/<p>Here are two of the prettiest nebulae in the sky: the Helix Nebula (NGC7293) and the Ring Nebula (M57).</p>