Astronomy

Hae sunrise, sunset, solar noon, and civil/nautical/astronomical twilight times mille tahansa sijainnille and date. Palauttaa all times in UTC. Hyödyllinen photography apps (golden hour planning), outdoor activity schedulers, smart home lighting automation, religious observance apps, and solar energy production estimates. Especially relevant in Nordic regions with extreme daylight variations.

Hae an estimated Bortle class (1-9) mille tahansa sijainnille based on nearby population density. This is an estimate, not a satellite measurement - it uses weighted population within 100km to approximate sky brightness. Palauttaa Bortle class, sky quality rating, estimated naked-eye star count, SQM (Sky Quality Meter) estimate, and aurora viewing suitability. Accurate for major cities and remote areas; less precise for suburbs. Hyödyllinen astronomy apps, aurora tourism, astrophotography planning, and dark sky awareness.

Hae NASA's Astronomy Picture of the Day (APOD), featuring a stunning space image or video along with a professional astronomer's explanation. Valinnaisesti specify a date to retrieve past entries. Toiminut vuodesta 1995, APOD is one of the most popular science outreach programs. Sopii science education apps, daily content feeds, desktop wallpaper apps, and space enthusiast communities.

Hae a list of asteroids making close approaches to Earth today, from NASA's Near Earth Object Web Service (NeoWs). Palauttaa asteroid names, estimated diameters, closest approach distances, relative velocities, and whether they are classified as potentially hazardous. Hyödyllinen space awareness apps, science education tools, and astronomy dashboards that track objects passing near our planet.

Selaa NASAn Curiosity-mönkijän Marsissa ottamia valokuvia, järjestettynä marsilaisen solin mukaan. Palauttaa kuvien URL-osoitteet, kameroiden nimet ja maapallon päivämäärät. Määritä sol-numero selataksesi eri operaatiopäiviä. Hyödyllinen avaruustutkimussovelluksiin, opetussisältöön ja Mars-visualisointiprojekteihin.