June 17, 2019

Astro-Challenge: Spot Neptune in its Original Discovery Position!

In this week’s astro-event, we challenge you, the sky watching public, to view the planet Neptune as it was first seen on the night of its discovery on September 23, 1846. On that evening, astronomer Johann Galle turned the Berlin Observatories’ 9-inch refractor on a position given to him by French mathematician Urbain Jean-Joseph Le Verrier, and the solar system hasn’t been the same since. The discovery of Neptune was a triumph for predictive mathematics and a good test of Newtonian mechanics in a celestial format.

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AstroEvent of the Week:29th-September 5th, 2008: Spot Neptune!

Now, to spot a planet that was first located mathimatically.

Now that the Moon is out of the sky this week, it’s a good time to add the outer most gas giant to your “been there, done that” list! First spotted in 1846 by Johann Galle & Heinrich D’Arrest, Neptune’s position was first deduced by the French Mathematician Le Verrier, who himself hated the “grittiness” of rank and file observational astronomy. [Read more...]