Bob King

About Bob King

I'm a long-time amateur astronomer and member of the American Association of Variable Star Observers (AAVSO). My observing passions include everything from auroras to Z Cam stars. Every day the universe offers up something both beautiful and thought-provoking. I also write a daily astronomy blog called Astro Bob.

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Here are my most recent posts

PanSTARRS K1, the Comet that Keeps Going and Going and Going

by Bob King September 29, 2014

Thank you K1 PanSTARRS for hanging in there!  Some comets crumble and fade away. Others linger a few months and move on. But after looping across the night sky for more than a year, this one is nowhere near quitting. Matter of fact, the best is yet to come.

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MAVEN Arrives at Mars! Parks Safely in Orbit

by Bob King September 21, 2014

138 million miles and 10 months journey from planet Earth, MAVEN moved into its new home around the planet Mars this evening. Flight controllers at Lockheed Martin Space Systems in Littleton, Colorado anxiously monitored the spacecraft’s progress as onboard computers successfully eased the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft into Mars orbit at 10:24 p.m. Eastern Daylight Time. 

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How to Take Great Pictures of the Northern Lights

by Bob King September 12, 2014

Everybody loves pictures of the northern lights! If you’ve never tried to shoot the aurora yourself but always wanted to, here are a few tips to get you started.

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Will Aurora Strike Tonight? Here’s What to Expect

by Bob King September 12, 2014

(Scroll down for latest update) Auroras showed up as forecast last night beginning around nightfall and lasting until about 1 a.m. CDT this morning. Then the action stopped. At peak, the Kp index dinged the bell at “5” (minor geogmagnetic storm) for about 6 hours as the incoming shock from the arrival of the solar blast rattled Earth’s magnetosphere. It […]

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Clear Skies Tonight? Go Out and See the Aurora

by Bob King September 12, 2014

Talk of aurora is in the air.  Our earlier story today by Elizabeth Howell alerted you to the possibility of northern lights. Well, it’s showtime!  As of 9:30 p.m. Central Daylight Time, the aurora has been active low in the northern sky.

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