Alan Richmond

Astrophysics

Solar System Scope

Solar System Scope

Online 3D simulation of the Solar System and night sky in real time – the Sun, planets, dwarf planets, comets, stars and constellations. The Model consists of 3 main Views (Heliocentric, Geocentric and Panaromatic), including:
• Precise Positions of all …

Book Review: Coloring the Universe

Coloring the Universe

Coloring the Universe: An Insider’s Look at Making Spectacular Images of Space by Dr. Travis Rector, Kimberly Arcand & Megan Watzke. This is a coffee-table astronomy book with a difference: the processing behind the beautiful astronomical images we’re now …

Barcodes in the Stars: Stellar Spectroscopy

Fraunhofer Lines in the Sun's Spectrum

What are the Sun and Stars Made of?

Scientists tell us that the stars (e.g. our Sun) are made mostly of hydrogen (72%) and some helium (26%) and a little bit of some (65) other elements such as oxygen, …