A collection of interactive visualizations in Astronomy

Zero Shadow Day

Find ZSD for any location.

View map, zsd
One year around the sun

Orbit of earth, zero shadow day on earth, equation of time and analemma!

View solar movement
Zero Shadow Moment

Track how the zero shadow moment moves across the globe.

View map, zsd
Planet Days

Difference in daylengths for the planets of our solar system.

View solar system
Analemma Generator

Generate Analemma for any planet. See how orbital parameters change the analemma.

View solar movement
Gravitational Lensing

See how an eclipsed star bends the stars in the background.

View gravity, lensing
Jovian Spiral

See the spiraling motion of the Galilean moons.

View jupiter moons
Tropic of Cancer Variation

See how the obliquitiy of earths axis changes.

View map, tropic of cancer
Shanku Yantra

Generate Shanku Yantra for any location.

View tool, jantar mantar

Zenith Distance and Declination Visualized.

View tool, jantar mantar
Lunar Eclipse 31 January 2018

Info on lunar eclipse.

View tool, eclipse