Category Archives: Astronomy

Toroidal Vortices

Posted on May 30, 2014 by timlyg

Those smoke/vortex rings could easily be mistaken as UFO.

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iOptron SkyTracker

Posted on April 1, 2014 by timlyg

Recommended by Stan Honda in AAA Monthly Newsletter, April 2014. $300. Motorized astrophotography tracker.

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The City College CUNY Class: ASTR 30500 Methods in Astronomy

Posted on March 14, 2014 by timlyg

Centripedal force is not to be confused with centrifugal force. Orbital decay caused by all kinds of factors. Professor mentioned Einstein's explanation of such by orbital direction change: Orbital Precession. However, I'm unclear as to if this is the cause … Continue reading →

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Dark Matter Mystery Explained

Posted on October 9, 2013 by timlyg
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Photography Basics: Lens

Posted on October 2, 2013 by timlyg

All about lenses.

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Neil deGrasse Tyson not Atheist, but agnostic

Posted on August 23, 2013 by timlyg

He can't even correct his own claim on wikipedia.

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Nothing vs. Infinity

Posted on August 23, 2013 by timlyg

Infinite $$ ain't = wealthy. But if nothing & infinity are different sides of a coin, is the coin = eternity?

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2012 Isaac Asimov Debate - Shocker

Posted on August 20, 2013 by timlyg

While I was speedily browsing through this 1:45 hour video, I was suddenly stunned by Dr. David Cline of UCLA's response to a Q&A [@ 1:29:00]: Cline: [paraphrasing] At UCLA, most of my graduate students are Chinese, this is because … Continue reading →

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Nova Delphini 2013 & Perseid Meteor Shower

Posted on August 16, 2013 by timlyg

Finally, a supernova of my time. My own take (coordinates 20h 23m 19.8s/+20°50'26.0" [J2000]):   Just a few days ago (+- Aug 12) there was Perseid Meteor shower. An event I did not witness.

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Andromeda and the Moon: Angular Size

Posted on August 2, 2013 by timlyg

Angular size is the size from the angular view. The Andromeda Galaxy seen in the sky is compared to the Moon on the sky...such comparison is by the same angular scale.

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