Observing

1. Tracking Venus’s Retrograde Motion

   Inspired by a "Sun, Moon & Planets" column, the author spent the spring of 2017 tracking Venus's retrograde motion across the sky, exploring the relationship between the orbits of Venus and the Earth pointed out by Copernicus.

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2. Amateur Don Machholz Discovers His 12th Comet! (Updated)

   Arizona comet hunter Don Machholz did it again! He discovered his 12th comet only two mornings ago. Set your alarm, grab your scope, and take a look.

   The post Amateur Don Machholz Discovers His 12th Comet! (Updated) appeared first on Sky & Telescope.

3. This Week’s Sky at a Glance, November 9 – 17

   The "star" glowing upper left of the crescent Moon during and after dusk tonight (November 10) is Saturn, currently 4,075 times farther away. Far to its upper left, Mars shines brighter.

   The post This Week’s Sky at a Glance, November 9 – 17 appeared first on Sky & Telescope.

4. Three Upcoming Sky Events We Can All Share

   Comets, meteors, and Moon: Share the night sights that are coming our way!

   The post Three Upcoming Sky Events We Can All Share appeared first on Sky & Telescope.

5. This Week’s Sky at a Glance, November 2 – 10

   Friday, November 2 • Look for Capella sparkling low in the northeast these evenings. About three fists at arm's length to Capella's right, look for the fingertip-sided Pleiades cluster. They're early markers of the cold months to come. Above the space between them are the stars of Perseus, astride the Milky Way. Saturday, November 3 • Mars shines in the south after dark. Look barely 1° east (left) of it […]

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