Astronomy & Space
396 sites
http://newastro.com/
Ron Wodaski's companion site to his book 'The New Astronomy' offers a comprehensive online guide to CCD astrophotography, covering everything from focusing and exposure to advanced image processing. With ten full chapters available online by subscription, plus sample content and a community discussion group, it serves as a practical resource for beginner and intermediate amateur astronomers.
http://learningastronomy.com/
LearningAstronomy.com appears to be an educational resource focused on astronomy, though the page content is extremely sparse with only a single image loaded. The domain name strongly suggests a site aimed at introducing beginners to astronomy concepts and space science.
http://astrosurf.com/cidadao
António Cidadão's dedicated astronomy site showcases years of lunar and planetary observation from Carcavelos, Portugal, featuring CCD imaging of the Moon, Mars, Jupiter, and Saturn captured with a 14-inch SCT telescope. The site includes detailed imaging guides covering super-resolution techniques, tri-colour imaging, limb darkening correction, time-lapse animations, and a Moon-Light Atlas reference, making it a rich resource for amateur planetary imagers.
http://blackcanyonastronomy.com/
The Black Canyon Astronomical Society (BCAS) is an amateur astronomy club serving Western Colorado, offering public meetings, star parties, dark sky preservation efforts, and outreach programs to schools and community groups. The site features a calendar of events, astrophotography gallery, observing highlights, and information on joining the Astronomical League.
http://stargazing.net/mas
The Muskegon Astronomical Society is a Michigan-based non-profit astronomy club founded in 1972, with its own multi-building observatory complex and an active membership of stargazers. The site features astrophotography from members including nebulae, auroras, comets, and Saturn, plus comet ephemeris tools, observing links, a club events calendar, and JavaScripts for night sky calculations.
http://rvasclub.org/
The Roanoke Valley Astronomical Society (RVAS) is a Virginia-based astronomy club offering monthly meetings, observing sessions, newsletters, and astrophotography resources for members. The site includes clear sky charts, a DSO of the month feature, member pages, and meeting announcements with guest speakers covering topics like astrophotography techniques.
http://hnsky.org/
Home of ASTAP and HNSKY, two free astronomy programs offering image stacking, plate solving, and a full-featured planetarium for amateur astronomers and astrophotographers. The creator also shares their own astrophotography images and equipment details, making this a practical hub for both software users and sky enthusiasts.
https://macastro.org.au/
The Macarthur Astronomical Society serves amateur astronomers in Sydney's south west, offering field nights at multiple observation sites, astro imaging workshops, citizen science projects, and a Deep Space Hunt program. With resources like the Messier and Caldwell lists, ISS tracking, sky conditions, and a 2028 Solar Eclipse planning page, this is a well-rounded hub for a genuinely active local astronomy club.
https://nic.funet.fi/pub/astro/html/astro-uk.html
Hosted on the Finnish University and Research Network (FUNET), this is the national homepage for amateur astronomy in Finland, maintained by members of the Ursa Astronomical Association. It organizes links to Finnish astronomical clubs, research institutions, schools, planetaria, publications, and observation resources, reflecting a country with one of the highest per-capita rates of amateur astronomers in the world.
https://astronomy.swin.edu.au/cosmos
COSMOS is a comprehensive astronomy encyclopedia produced by research astronomers at Swinburne University's Centre for Astrophysics and Supercomputing, covering topics from the Planck Length to galaxies for a general but detail-hungry audience. The encyclopedia is an evolving reference used by major astronomy outlets including Universe Today, Astronomy Cast, and Astronomy Picture of the Day, making it a trusted hub for astronomical knowledge.