Below are audio recordings of the lectures for Prof. Richard Pogge’s Winter 2006 Astronomy 162 class at the Ohio State University. Lecture notes are available on the class webpage.
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Stars, Galaxies, & the Universe Videos:[tubepress mode=”tag” tagValue=”Stars Galaxies Universe astronomy”]
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Starting in 1992, astronomers have become aware of a vast population of small bodies orbiting the sun beyond Neptune. There are at least 70,000 “trans-Neptunians” with diameters larger than 100 km in the radial zone extending outwards from the orbit of Neptune (at 30 AU) to 50 AU. Observations show that the trans-Neptunians are mostly confined within a thick … Read the rest of this article
We are asked nearly every day: “What are your best binoculars?” And every day we answer: “How do you plan on using them?” We are not trying to be evasive with our answer, but the truth of the matter is – the best binoculars for one purpose may be the worse binoculars for another. We want you … Read the rest of this article
By Gary Nugent
Google launched the highly anticipated full version of Google Earth, the search engine’s stand-alone global map utility on June 28th. The application [~10Mb] is available to download from http://earth.google.com.
This geographic search tool combines local search with satellite images and maps from around the globe.
Google Earth is a standalone application that’s essentially an enhanced and … Read the rest of this article
by Charles Vane
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The Roadblocks
There will, naturally, be hurdles to overcome, especially in the next two to five years. We are, after all, talking about … Read the rest of this article
by Charles Vane
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On June 21 of last year something extraordinary happened. A 63-year-old test pilot by the name of Mike Melvill took a small craft … Read the rest of this article
The Aurora (also known as the Northern Lights, aurora borealis or auror australis) is a luminous glow of the upper atmosphere which is caused by energetic particles that enter the atmosphere from above, primarily from the solar wind.
These energetic particles are mostly electrons, but protons also make aurora. The electrons travel along magnetic field lines. The Earth’s magnetic field … Read the rest of this article
The moon: big, bright, feature-rich but impeached by many astronomers who fight its glare to view the dim light from far-off galaxies. Far from being a celestial nuisance, the Moon is an object worthy of study says John Rowlands, who finds out what its like to become an old (Lunar Phase).
Many people have come up with various pieces of … Read the rest of this article
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Main screen for LunarPhase Pro. Click for larger version. |
Since the publication of Charles Wood’s ‘Lunar 100’, in Sky and Telescope I have become a very keen observer of the Moon. As you probably know, the weather in Ireland is less than ideal for astronomy, so I try and plan carefully my time under clear skies to maximise my time … Read the rest of this article
The Sun Now (Visible light)
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The Sun Now (H-Alpha light)
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Aurora Oval
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Aurora Oval
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