Astronomy Apps

Elongation

Elongation

Discover how the planets move relative to the Sun and stars.

The Sky In Color

The Sky In Color

View the sky through different astronomical filters.

Expansion of the Universe

Expansion of the Universe

Explore how the distances and motion of far away galaxies demonstrate the expansion of the Universe.

Rotation of Galaxies

Rotation of Galaxies

Explore how the rotation of galaxies demonstrates the existance of dark matter.

Galaxy Model

Galaxy Model

Observe how the stars of a galaxy orbit - and how they don't themselves cause spiral arms

Parallax and Proper Motion

Parallax and Proper Motion

Explore the motion of stars due to parallax and true spatial motion (proper motion).

Measurement and Analysis

Measurement and Analysis

Explore relationships between two quantities and perform analysis.

The Planets and The Sky

The Planets and The Sky

Observe how the planets move with respect to the stars and Sun.

Telescopes

Telescopes

Explore how different telescopes and instruments develope different pictures of clusters of stars.

Cluster CMD

Cluster Color-Magnitude Diagram

View Color-Magnitude Diagrams (CMD) for clusters of stars in the Milky Way

Transient Survey Creator

Transient Survey Creator

Plan a survey of the sky looking for novae and supernovae. (Work in progress)

FITS Imager

FITS Imager

Explore real astronomical images.

Rotation of Galaxies (old)

Galaxy Model

Explore how the rotation of galaxies demonstrates the existence of dark matter.

Speed of Sound

Speed of Sound

Explore how the sound waves in a partially closed tube have resonances that depend on the length of the tube.

Waves and Superposition

Waves

Explore how the waves are affected by the velocity, frequency, amplitude, and how waves combine to make larger or smaller waves.

Copyright (c) 2020 - 2023, Brian W. Mulligan Privacy Policy