{"dataset":{"slug":"citizen-science-and-amateur-astronomy","title":"Citizen Science & Amateur Astronomy","description":"The public participation layer of astronomy — the citizen-science projects, the amateur observing activities, the observing equipment, and the public-outreach activities.","version":"1.0.0","lastGenerated":"2026-06-29","license":"CC BY-SA 4.0","entityCount":22,"sources":["nasa"]},"entities":[{"id":"amateur_activity:asteroid-observing","name":"Asteroid Observing","type":"amateur_activity","domain":"science","description":"Measuring the positions and brightness of asteroids, and timing the moments they pass in front of stars. From these occultation timings, amateurs reconstruct asteroid shapes and sizes to a precision that rivals spacecraft flybys.","entryPath":"/citizen-astronomy/asteroid-observing"},{"id":"observing_equipment:astronomical-filter","name":"Astronomical Filter","type":"observing_equipment","domain":"science","description":"A filter that blocks unwanted light — the orange glow of light pollution, or all but a single emission line such as hydrogen-alpha — so that faint nebulae stand out against the background. Filters let observers under city skies see what would otherwise be washed out.","entryPath":"/citizen-astronomy/astronomical-filter"},{"id":"outreach_activity:astronomy-education","name":"Astronomy Education","type":"outreach_activity","domain":"science","description":"Teaching and public engagement with astronomy — in classrooms, planetariums, science centres, and online — that turns a glance at the stars into understanding. Modern education draws directly on open data archives and survey imagery, letting anyone explore real observations.","entryPath":"/citizen-astronomy/astronomy-education"},{"id":"citizen_science_project:aurorasaurus","name":"Aurorasaurus","type":"citizen_science_project","domain":"science","description":"A project that crowdsources real-time reports and photographs of the aurora from the public, improving where and when auroral displays are forecast — turning sky-watchers into a distributed sensor network for space weather.","entryPath":"/citizen-astronomy/aurorasaurus"},{"id":"amateur_activity:backyard-observing","name":"Backyard Observing","type":"amateur_activity","domain":"science","description":"Watching the night sky from home with the naked eye, binoculars, or a small telescope — learning the constellations, following the Moon and planets, and hunting bright deep-sky objects. The foundation of the hobby, and where almost every astronomer begins.","entryPath":"/citizen-astronomy/backyard-observing"},{"id":"observing_equipment:binoculars","name":"Binoculars","type":"observing_equipment","domain":"science","description":"The most-recommended first instrument in astronomy — wide-field, portable, and forgiving. A modest pair shows the craters of the Moon, the moons of Jupiter, star clusters, and the brighter galaxies and nebulae, and teaches the sky better than any telescope rushed into too soon.","entryPath":"/citizen-astronomy/binoculars"},{"id":"observing_equipment:camera","name":"Camera","type":"observing_equipment","domain":"science","description":"From a standard camera to a cooled, dedicated astronomical one, the imaging heart of the hobby. Stacking many long exposures, an amateur camera reveals colour and faint structure in nebulae and galaxies far beyond what the eye can see at the eyepiece.","entryPath":"/citizen-astronomy/camera"},{"id":"amateur_activity:comet-observing","name":"Comet Observing","type":"amateur_activity","domain":"science","description":"Following comets as they brighten, grow tails, and fade — estimating their brightness and sketching or photographing their changing structure. Amateurs have a long tradition of discovering comets, and their brightness estimates track how these unpredictable visitors evolve.","entryPath":"/citizen-astronomy/comet-observing"},{"id":"outreach_activity:dark-sky-park","name":"Dark-Sky Park","type":"outreach_activity","domain":"science","description":"A place formally protected for the darkness of its night sky, kept free of light pollution and certified by DarkSky International. Dark-sky parks preserve the vanishing experience of a truly dark sky — and protect the wildlife and human health that artificial light disrupts.","entryPath":"/citizen-astronomy/dark-sky-park"},{"id":"observing_equipment:dobsonian-telescope","name":"Dobsonian Telescope","type":"observing_equipment","domain":"science","description":"A large reflecting telescope on a simple, stable, inexpensive alt-azimuth mount — the design that put big apertures within reach of ordinary observers. It offers more light-gathering power per unit cost than anything else, and is the classic instrument for deep-sky observing.","entryPath":"/citizen-astronomy/dobsonian-telescope"},{"id":"observing_equipment:equatorial-mount","name":"Equatorial Mount","type":"observing_equipment","domain":"science","description":"A telescope mount tilted to align with Earth's rotation axis, so that a single, steady motion cancels the turning of the sky. It keeps an object centred as the Earth spins, which is what makes long-exposure astrophotography possible.","entryPath":"/citizen-astronomy/equatorial-mount"},{"id":"citizen_science_project:galaxy-zoo","name":"Galaxy Zoo","type":"citizen_science_project","domain":"science","description":"The project that asked the public to sort galaxies by shape from survey images — and found volunteers could do it as well as experts, at enormous scale. Its classifications became a landmark dataset and the training labels for the machine-learning classifiers that followed.","entryPath":"/citizen-astronomy/galaxy-zoo"},{"id":"citizen_science_project:globe-at-night","name":"Globe at Night","type":"citizen_science_project","domain":"science","description":"A worldwide campaign to measure light pollution by having people compare the faintest stars they can see — often in Orion — against a set of star charts, and report what they see. The result is a global, year-on-year map of the brightening night sky.","entryPath":"/citizen-astronomy/globe-at-night"},{"id":"amateur_activity:meteor-observing","name":"Meteor Observing","type":"amateur_activity","domain":"science","description":"Counting and recording meteors during a shower — their number, brightness, and paths — to measure the shower's strength and structure. Coordinated worldwide by the International Meteor Organization, it is a science anyone can do with nothing but their eyes and patience.","entryPath":"/citizen-astronomy/meteor-observing"},{"id":"amateur_activity:occultation-timing","name":"Occultation Timing","type":"amateur_activity","domain":"science","description":"Precisely recording the instant a star winks out and reappears as the Moon or an asteroid passes in front of it. Combined across many observers, these timings reveal lunar-limb profiles and the shapes and sizes of asteroids — a niche where amateurs produce genuinely professional data.","entryPath":"/citizen-astronomy/occultation-timing"},{"id":"citizen_science_project:planet-hunters","name":"Planet Hunters","type":"citizen_science_project","domain":"science","description":"A project inviting the public to search stellar light curves for the tiny dips of a transiting planet — finding candidates, including unusual ones, that automated pipelines had missed. A demonstration that human eyes still catch things algorithms overlook.","entryPath":"/citizen-astronomy/planet-hunters"},{"id":"outreach_activity:public-observatory","name":"Public Observatory","type":"outreach_activity","domain":"science","description":"An observatory open to the public for viewing nights, talks, and hands-on astronomy — often run by universities, clubs, or planetariums. It gives people a chance to look through a real research-grade telescope and meet the people who use them.","entryPath":"/citizen-astronomy/public-observatory"},{"id":"outreach_activity:star-party","name":"Star Party","type":"outreach_activity","domain":"science","description":"A gathering where amateur astronomers bring their telescopes to share the sky — with each other and with the public. From a few people in a car park to thousands under a desert sky, star parties are the social heart of the hobby and many people's first look through a telescope.","entryPath":"/citizen-astronomy/star-party"},{"id":"observing_equipment:star-tracker","name":"Star Tracker","type":"observing_equipment","domain":"science","description":"A small, portable motorised mount that slowly turns a camera to follow the stars, so that long exposures capture faint detail without the stars trailing into streaks. It has made wide-field astrophotography of the Milky Way accessible to anyone with a camera.","entryPath":"/citizen-astronomy/star-tracker"},{"id":"citizen_science_project:stardust-at-home","name":"Stardust@home","type":"citizen_science_project","domain":"science","description":"A project in which volunteers scanned microscope images of the aerogel flown on NASA's Stardust mission, hunting for the microscopic tracks of interstellar dust grains — a needle-in-a-haystack search that distributed human attention could solve.","entryPath":"/citizen-astronomy/stardust-at-home"},{"id":"amateur_activity:variable-star-observing","name":"Variable-Star Observing","type":"amateur_activity","domain":"science","description":"Monitoring stars that change in brightness and reporting careful estimates over months and years. Coordinated by organisations like the AAVSO, amateur variable-star observers build long-term light curves that professionals rely on — one of the clearest cases of amateurs doing lasting science.","entryPath":"/citizen-astronomy/variable-star-observing"},{"id":"citizen_science_project:zooniverse","name":"Zooniverse","type":"citizen_science_project","domain":"science","description":"The largest platform for people-powered research, where hundreds of thousands of volunteers help classify and analyse data across astronomy and many other sciences. It grew out of Galaxy Zoo and now hosts dozens of projects that turn human pattern-recognition into published results.","entryPath":"/citizen-astronomy/zooniverse"}]}