Right ascension, a celestial coordinate dating back to Hipparchus, measures the east-west position of celestial objects along the celestial equator, starting from the vernal equinox. Right ascension, ...

The equatorial coordinate system projects Earth's latitude and longitude onto the celestial sphere, using declination (angular distance from the celestial equator, measured in degrees) and right ...

GENEVA, Feb. 2 (Xinhua) -- The "Celestial Sphere," a symbol of the United Nations and of International Geneva, is to be brought back to its original splendor as symbolism for peace and the future, the ...

Honorary Fellow of the University of Melbourne and Senior Curator (Astronomy), Museums Victoria Research Institute It’s the time of the equinox or more specifically the spring equinox for us in the ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Historical view of the temporary ...

SPHEREx will survey hundreds of millions of galaxies, as well as search the Milky Way for water and organic molecules essentials for life as we know it. NASA's newest space telescope has launched into ...