Australian Sky & Telescope

Hipparchus and the equinoxes

As with so many of the Greek astronomers who got the science going more than 2,000 years ago, we know little more than the basics about the life of Hipparchus. Evidence suggests he was born in Nicaea in modern Turkey around 190 BCE and died in Rhodes some 70 years later, but that is about all.

Likewise we a few centuries later was based on and extended upon the work of Hipparchus.

You’re reading a preview, subscribe to read more.

More from Australian Sky & Telescope

Australian Sky & Telescope3 min read
Long Time Coming
EXPLORING THE SOLAR SYSTEM is a long game, with travel times measured in years. And the time from when we first propose a mission to when our spacecraft sits on the launch pad, ready to leave Earth or die trying, is often much longer still. In a way,
Australian Sky & Telescope1 min read
Readers' Gallery
HOW TO SUBMIT YOUR IMAGES Gallery showcases the finest astronomical images that our readers submit. Send your best shots to photos@skyandtelescope.com.au. See skyandtelescope.com.au/contributions/ for guidelines.
Australian Sky & Telescope3 min read
Two Planets To Observe At Opposition
We have two planetary oppositions to cover this issue, plus the usual inner planet conjunctions as well as the southern spring equinox. Let’s start as we always do, with the innermost planet, Mercury (mag. 0.3, dia. 7.5˝, Aug. 10), which begins Augus

Related Books & Audiobooks