The Summer Triangle: Vega, Deneb, and Altair Guide
Learn the Summer Triangle—Vega, Deneb, and Altair. Find it, observe deep-sky sights in Cygnus, Lyra, and Aquila, and explore the science behind these stars.

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.
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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
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Below are a selection of our Articles, to find more click on one of the sections above, or use the Menu at the top of the page.
Learn the Summer Triangle—Vega, Deneb, and Altair. Find it, observe deep-sky sights in Cygnus, Lyra, and Aquila, and explore the science behind these stars.
Understand numerical aperture (NA) in light microscopy: how it sets resolution, brightness, depth of field, and sampling. Clear, accurate guidance for users.
Compare alt-az and equatorial telescope mounts, pros and cons, payload, tracking, polar alignment, and best uses for visual and astrophotography.