March 19, 2015 – The Baader Moon and Skyglow Filter and the Crabby Astronomer

The same day as the Levenhuk/Baader solar filter arrived, another filter arrived, too:  The Baader Moon and Skyglow Filter.  Suh-weet!  So, between the sun and the night sky, it was really a very full and enjoyable day and night of observing. The M&SG is, in one sense, a weaker version of the Orion Ultrablock filter […]

Read more "March 19, 2015 – The Baader Moon and Skyglow Filter and the Crabby Astronomer"

December 16, 2014 – What is “light-polluted astronomy”? What’s with that hyphen? And Europa’s shadow!!!

Before I get to the main topic, let me just do a quick recap of my observing session last night.  I went out to take another look at Jupiter, to see both the Great Red Spot, and a transit of Europa.  According to this listing from Sky & Telescope, the Great Red Spot was supposed to be […]

Read more "December 16, 2014 – What is “light-polluted astronomy”? What’s with that hyphen? And Europa’s shadow!!!"

December 14, 2014 – Upgrading the Mak, Part 3A – 8mm TeleVue Plossl vs. 9.7mm Meade 4000 SuperPlossl, Bahtinov mask, Lord mask, diagonals

As promised, I can finally give you the lowdown on how good the TeleVue Plossl is. It ain’t worth it. I observed Jupiter tonight, for almost a solid hour, with a couple of breaks for the Geminid meteor shower.  (I only saw one, out of the corner of my eye.)  I switched back and forth […]

Read more "December 14, 2014 – Upgrading the Mak, Part 3A – 8mm TeleVue Plossl vs. 9.7mm Meade 4000 SuperPlossl, Bahtinov mask, Lord mask, diagonals"