strong ionized helium He II/Hβ ratio (oxygen line at 5007 Å, helium line at 4686 Å). In some cases these EELRs show highly ionized species, such as calcium...
31 KB (2,802 words) - 08:02, 20 September 2024
NGC 4701 is an unbarred spiral galaxy in the New General Catalogue, located in the constellation Virgo. It was discovered by the English astronomer William...
3 KB (243 words) - 18:24, 18 January 2024
NGC 4614 is a barred lenticular galaxy in the New General Catalog. It is located in the constellation of Coma Berenices. It was discovered in 1864 by...
3 KB (211 words) - 18:24, 18 January 2024
45652 b 0.465 43.597 0.230 0.3782 2008 HD 147018 b 2.116 44.236 0.239 0.4686 2009 HD 93385 c 0.032 46.025 0.329 0.2359 2011 HD 103197 b 0.098 47.843 0...
36 KB (286 words) - 20:08, 22 December 2023