Astronomer rings
Richard Bell
Portals
Universe Today.com
Red Orbit.com
Sky and Telescope.com
Forum
AstroVox.gr (Best astronomy forum in Greece)
TV and Radio
The Sky At Night (by Sir Patrick Moore)
Astronomy Cast (interesting Podcast)
Sky Atlas
Messier45.com (Deep Sky Browser)
Google.com/mars (Maps of Mars)
GoogleSky (Interactive sky views in infrared, microwave and visible light)
Sky Maps.com (Sky Map of the month - PDF)
Heavens-above (Satellite, Comet and Solarsystem report)
Sky-Map.org (Interactive sky maps online)
CalSky.org (The planets today)
Skyview Cafe (Online astronomy program)
Solar System Tour (Online solar system simulator)
Lpi.Usra.Edu (Lunar, Mars and Mercrury maps)
SkySurvey.org (Sky Map)
n2yo.com (Real Time Satellite Tracking)
Infos about Celestial Objects
The Stars (Star guide by Prof. Jim Kaler)
ADS Harvard (Detailed search on scientific documents)
Astronomy Topics
The Torino Scale (Asteroid and Meteor Impact Hazard)
Dark Sky.org (Light pollution)
Delmarfans.com (Facts about light pollution)
Seeing estimation (Estimate the sky quality - by William Pickering)
Astrobiology & Xenobiology
The Drake-Equation (Estimation of the number of extraterrestrial civilizations in our galaxy)
Dr. Michio Kaku (Theoretical Physicist, Author, Professor & Comedian - University of NY/USA)
Hardware
Flatfield Foils (Flatfield Foils by Gerd Neumann)
Software
CCDInspector (Collimate your telescope - PC)
PEMPro (Measure and optimize the worm of your telescope mount - PC)
CCDSoft (Image processing - PC)
MaximDL (Image processing - PC)
Gradient Removal (Image processing plugin - PC)
Annie’s Astro Actions (Photoshop plugin - PC)
Astrodigital.Net (CCD & Telescope calculator - PC/Mac/LinuX)
Autoguider Calculator (Autoguider calculator - All platforms)
WCS (Polar assignment with a Webcam)
GIOTTO - (Stacking tool for Webcam astrophotographers - PC)
The Ascom initiative (Telescope control)
Registar (Image alignment and registration - PC)
StarryNight (Planetarium/Astronomy - Mac/PC)
SkyVoyager (Planetarium/Astronomy - Mac/PC/iPhone/iPad)
SkySafari (Planetarium/Astronomy - Mac/iPhone/iPad)
StarMapPro (Planetarium/Astronomy - iPhone)
TheSky (Planetarium/Astronomy - PC)
Stellarium.org (Planetarium - Mac/Linux/PC)
Pocket Stars (Planetarium - Smartphone/PDA/PC)
Celestia (Visiting the universe - Mac/Linux/PC)
Astroplanner.net (Observation planing tool - Mac/PC)
Software for iPhone
Astrophotographers
Anthony Ayiomamitis (Greece)
Rob Gendler (USA)
Konstantinos Christodoulopoulos (Greece)
Stefan Seip (Germany)
George Tsaroudis (Greece)
Emil Ivanov (Bulgaria)
Andreas Chondrogiannis (Greece)
Rogelio Bernal Andreo (US)
Damian Peach (UK)
Loke Kun Tan (Hong Kong)
Excellent Shops
Intercon Spacetec (Germany)
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