Astronomy & Space
396 sites
http://casswww.ucsd.edu/archive/public/tutorial/History.html
Gene Smith of UC San Diego's Center for Astrophysics and Space Sciences presents a detailed tutorial on the history of astronomy, tracing human observation of the skies from Stonehenge and ancient agrarian cultures through Pythagoras, Aristotle, Aristarchus, Copernicus, Kepler, and Galileo. Rich with links to related topics like archaeoastronomy, eclipse prediction, and the Music of the Spheres, this page is part of a broader astronomy education series hosted by UCSD.
http://theastropages.com/
The @stro Pages is a long-running amateur astronomy hub offering astrophotos, articles, telescope making guides, an observer's log, and a San Diego stargazing calendar. Packed with community features like discussion boards, a monthly newsletter, and links to deep-sky objects, it serves both beginners and experienced skywatchers.
https://openphdguiding.org/phd2-log-viewer
PHD2 Guiding is the home of PHD2, a free and open-source autoguiding software used by astrophotographers to keep telescopes precisely locked on celestial targets. This page highlights a log file viewer tool developed by Andy Galasso, which helps users visualize guiding performance and diagnose tracking issues from their PHD2 guide logs.
http://planetquest.org/
PlanetQuest is a nonprofit citizen science project inviting the public to participate in real exoplanet detection research using distributed computing and a shared software platform called the Collaboratory. Visitors can download tools to search stellar light curves for transiting planets, contributing spare CPU cycles to a project affiliated with NASA's Kepler Mission.
https://keeneastronomy.org/
The Keene Amateur Astronomers (KAA) is a New Hampshire astronomy club established in 1957, offering members access to an observatory, star parties, observing events, telescope training, and a member photo gallery featuring stunning shots of comets, auroras, and the Milky Way. The club also highlights community achievements like member Susan Rolke's selection for NASA and ACEAP ambassador programs, making it a rich hub for both beginner and experienced stargazers in the Cheshire County region.
https://www.was.org.nz/useful-links
The Wellington Astronomical Society maintains this curated links page connecting visitors to astronomy resources across New Zealand and beyond, from national societies to educational tools for children. Organized into regional and international sections, it serves as a handy gateway to observatories, sky guides, STEM activities, and fellow astronomy clubs throughout New Zealand.
https://fedastro.org.uk/
The Federation of Astronomical Societies is a UK-based umbrella organization connecting amateur astronomy clubs and societies across Britain. It serves as a hub for coordinating events, sharing resources, and supporting the broader community of stargazers and astronomical enthusiasts in the region.
https://cedar-astronomers.org/
Cedar Amateur Astronomers (CAA) is an astronomy club based in the Cedar Rapids, Iowa area, hosting regular public programs, monthly business meetings, and stargazing events at their Pal-Dows Observatory. The site provides event schedules, Zoom recording links for past programs, a clear sky chart, and resources through affiliations with the Astronomical League and the Night Sky Network.
http://satobs.org/noss.html
A detailed reference page on the Naval Ocean Surveillance System (NOSS) satellite formations, covering every generation from the declassified Program Poppy through modern double-satellite pairs and China's NOSS-like triplets. Hobbyist satellite observers will find orbital element tables, magnitude data, launch histories, and tracking information compiled by the Visual Satellite Observer community.
http://laughton.com/paul/rfo/rfo.html
Named in honor of Nobel Prize-winning physicist Richard Feynman, this amateur astronomy site showcases CCD astrophotography of nebulae, planets, and galaxies captured through telescopes ranging from a 4-inch Takahashi to a Celestron C11. Visitors will find detailed equipment reviews, imaging guides, comet and planet sequences, and a rich gallery of deep-sky objects including the Horsehead Nebula, M42, and Hale-Bopp.