Polaris: The North Star’s Science, History, and Use
Explore Polaris—the North Star—its location, brightness, variability, navigation tips, and future pole stars in a clear, expert guide for skywatchers.

Guides to help with your Stargazing Adventure

Information on Galaxies, Stars, Constellations, Planets, Moons, Comets and Asteroids
Listen to Bernard Miller describe his journey into AstroPhotography and detail how he captured this stunning image of the Sculptor Galaxy.
Read the full article here.
Drew Evans talks about his passion for astrophotography, the equipment used and tips for post processing image data.
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Hear D.j Van Bourgondien as he talks about using his Celestron EdgeHD 8″ telescope to capture this image of the Fireworks Galaxy
Read the full article here
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Explore Polaris—the North Star—its location, brightness, variability, navigation tips, and future pole stars in a clear, expert guide for skywatchers.

In this day and age, it seems like there are a million gadgets out there to perform all kinds of niche purposes. The Brix refractometer might sound like one of them, but the truth is that this instrument is immensely useful in a variety of circumstances. If you’ve been searching for a refractometer that can

All telescopes – and indeed, most optical devices – work by collecting light at the objective lens or primary mirror, and then converging these light rays into a spot called the focal plane. Particularly with eyepieces, it is basically inevitable that any telescope will have aberrations at the focal plane in some fashion, and they