Brian Ventrudo
Science of Stargazing – Star Distances and Motion
Filed Under: Fundamentals of Stargazing
There was a time, less than 200 years ago, when astronomers had not yet measured the distance to the stars. It's a tricky measurement, but the basic idea of how to find the distance to the stars is fairly simple. Also this month you also get an overview of the motion of stars in the galaxy, and a look at observing double stars, one of the most unde...
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Deep Sky Tours – July
Filed Under: Fundamentals of Stargazing
M57, the Ring Nebula
This month you look at a good range of objects: resplendent open and globular star clusters, superb double stars, and a fine planetary nebula. Compared to the faint galaxies you toured last month, most of these objects are quite easy to see. And they are ...
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Sky Tours (South) – July
Filed Under: Fundamentals of Stargazing
Scorpius
While winter is now underway in the southern hemisphere, the Earth has turned into a position to reveal the thick band of the Milky Way nearly overhead at southern latitudes. This is one of the most spectacular sights in all of nature. Here you look towards the cente...
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Sky Tours (North) – July
Filed Under: Fundamentals of Stargazing
This month you examine the stars of northern summer along with the prominent constellations Lyra, Ophiuchus, Serpens, and Scorpius. Overhead you see the blue-white glow of the bright star Vega. And as you look to the east, you once again see brighter stars along the rising plane of the Milky Way. Dominating the southeastern sky, the star Antares, a...
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