Cepheid Variable Stars: Cosmic Yardsticks Explained
Learn how Cepheid variable stars power the cosmic distance ladder, from Leavitt’s law to the Hubble constant. Types, observing tips, and FAQs.

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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Learn how Cepheid variable stars power the cosmic distance ladder, from Leavitt’s law to the Hubble constant. Types, observing tips, and FAQs.

Astronomy is a truly wonderful hobby. Whether you’re an adult fascinated by the night sky and you’re looking for a fun pastime to engage in, or you are the parent of a budding young scientist who loves looking at the stars, purchasing a telescope is a great place to start. However, once you have purchased
Learn how to choose, set up, and use a Dobsonian telescope—aperture, focal ratio, accessories, collimation, and observing tips for beginners and enthusiasts.