| Association of Lunar and Planetary Observers: Minor Planets Section: Photometry and shape modeling program, magnitude alert project, finder charts, visual observing of minor planets. | |
| AstDys, Asteroids - Dynamic Site: Indexed, searchable database of asteroid data. | |
| Asteroid Articles: Archive of articles posted at the Planetary Science Research Discoveries site at the University of Hawaii. | |
| Asteroid Groups: Graphs and animations showing major asteroid groups and families. | |
| Asteroid Models: Research in determining asteroid shapes through photometric data and multiple data sources. Reference documents, introduction, links. | |
| Asteroid Observing Services from Lowell Observatory: Tools to help observers select targets and plan observations. Also, orbital elements, reference star catalog data and software, link to Lowell Observatory Near Earth Object Search (LONEOS). | |
| Asteroid Radar Research: NASA JPL asteroid research using radar. Introduction, scientific activity, asteroid images. | |
| Asteroids and Remote Planets Section: Section of the British Astronomical Association. Asteroid finder charts, articles on observing techniques. | |
| Asteroids with Canadian Connections: A list of asteroids whose names are known to have a Canadian connection, usually because they are named after a Canadian. | |
| Asteroids with Satellites: Lists of known or suspected asteroids with satellites. Also history, graphs, links. | |
| Asteroids: Chart showing relative sizes, distance from the sun, inclination/eccentricity, shape, and color. Other charts showing position in the solar system. Summary data. | |
| Asteroids: Common questions. | |
| Asteroids: From the Uppsala Planetary System Group. Overview, research projects, discoveries. | |
| Astronomy Related Rrograms: By Jure Skvare. Downloads and web based services useful to asteroid observers. Fitsblink, asteroid server, fitsjd, fits2pg, fitsfrompg, asteroid identifier, residual calculator. | |
| Bill Bottke's Asteroid Research: Collisions, tidal disruption, dynamics, planetary impacts, crater chains and doublet craters. | |
| Dan Durda's Research Interests: Airborne observations, Vulcanoids, various asteroid collision effects. | |
| Eric Weisstein's World of Astronomy: Asteroids: Dynamical groups of asteroids, mathematical formulas, the Tunguska event. | |
| European Asteroid Research Node: Association of European research groups active in asteroid research. Links to member sites and resources useful for asteroid research. | |
| Exploring The Planets: Asteroids: Offers general scientific overview with history and images by the National Air and Space Museum. | |
| Introduction to Asteroids: Covers history, asteroid composition, Earth collisions. | |
| List of Double Minor Planets: Known or suspected asteroids with satellites. | |
| Minor Planet Groups and Families: Listing and description of dynamical groups and physical families of asteroids. | |
| Minor Planet Observer: Lightcurve collaboration, physical studies, software, Palmer Divide Observatory. | |
| Minor Planets: Offers updated alphabetical list of minor planet names. | |
| News on Hilda Asteroids: A review of current knowledge of this dynamical group. Overview, low eccentricity Hildas, the Schubart family, numbered Hildas of the Palomar-Leiden survey. | |
| Nine Planets: Asteroids: Overview of current scientific knowledge of asteroids. | |
| Orrery: Asteroids: Basic information about asteroids, history of asteroid discovery, Bode's Law. | |
| Physical studies of asteroids at Poznan Observatory: Light curves, database of asteroid spin vectors. | |
| Serra Designs - Asteroid Model Series: Scientifically accurate scale models of asteroids. | |
| Small Main-Belt Asteroid Spectroscopic Survey II: Data sets and references to scientific literature describing results. | |
| Small World Atlas 2000: Cartography of irregularly shaped asteroids and satellites. Maps, images, related papers. | |
| Solar System Exploration: Asteroids: Basic description, overview of asteroid science. | |
| Suspected and known binary asteroids: List of suspected binary asteroids with bibliographic references. | |
| The Asteroid World: Categorization of asteroids by their orbits and physical properties. | |
| UAI Minor Planets Section: Italian organization of minor planet observers. Histograms and scatter plots of asteroid orbital elements. Ephemeridies, opposition dates, conjunctions with Messier objects, shareware applications. | |
| Views of the Solar System: Asteroid Introduction: Background information, details on selected asteroids, image gallery. | |
| Wikipedia: Asteroid: Encyclopedia article covers history, groups of asteroids, spectral types. Tables of largest and notable asteroids. | |
| Windows to the Universe: Asteroids: Description, data on selected asteroids, images. |
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