https://e-sygoing.link Latest links in the Books category en-us Mon, 25 May 2026 02:49:22 -0400 https://e-sygoing.link/link/5303338-handbook-of-space-astronomy-and-astrophysics [online] by Martin V. Zombeck's, 2nd Ed., Cambridge University Press. Sat, 18 Apr 2026 01:59:42 -0400 https://e-sygoing.link/go/5303338 https://e-sygoing.link/link/5303341-philharringtonnet A site devoted to helping amateur astronomers get more enjoyment out of their hobby. Includes advice on purchasing and using equipment as well as products. Tue, 23 Jan 2024 01:40:52 -0500 https://e-sygoing.link/go/5303341