Summer Astronomy – Observing List

The summer observing season is upon us which means summer vacations, camping, and otherwise just spending more time outdoors which leads to noticing the night sky above us. Many beginning astronomers may be wondering, “What interesting things can I see with simple equipment?”

How to Use The Night Sky – Quick Guide

With The Night Sky™ planisphere you will be up and running and locating constellations within minutes. The most popular and lowest distortion star chart on the market.

Planisphere or App?

Now that smartphones and tablets have become ubiquitous many people ask us why we don’t publish a planisphere app instead of continuing to sell physical planispheres. The answer is that, in this case, there are several advantages to the physical format. more…

Why the Red Light?

Why do you need a red light to read your charts at night? It can take up to 45 minutes for the human eye to completely adapt to darkness as a protein called Rhodopsin builds up in the rod cells. Once your night vision is adapted you might be surprised …

Latitude Selector

You should choose a planisphere version based on the location from which you will be observing. Each latitude version of The Night Sky is optimized for the specific latitude zone to provide accurate horizons and minimum distortion.

Wholesalers and Distributors

David Chandler Company, Inc. provides products to a wide variety of retail and non-profit partners. Read More for information about carrying our great products. more…
Galaxy Cluster Abell 1689

Happy Birthday Hubble

In case you have been stranded on a remote island and have not heard, the Hubble Space Telescope (HST) is turning 25-years old today!  Although known popularly for the stunning images produced from the data it has gathered, the HST has contributed critical new data that has accelerated human understanding of our universe time and time […]

Moon Phase Calendars

Our popular Moon Phase Calendars are still available here at DavidChandler.com! You can click the button below or navigate to Resources -> Online Resources and click on “More Information and Links” under The Moon heading. The link to our Moon Phase Calendars is right at the top. These easy to use calendars will help you […]

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Spiral Galaxy and The Messier Catalog

An image of a Spiral Galaxy in the constellation Canes Venatici from one of our favorite sites, APOD (Astronomy Picture Of the Day). This galaxy is Messier Object 106. French astronomer Charles Messier was a comet hunter who identified over 100 objects that resembled comets but were not. He created a catalogue of these objects […]

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International Dark Sky Association

This week we wish to recognize the towns of Westcliffe and East Cliff Colorado for their recent applications with the International Dark Sky Association to become recognized Dark Sky Communities. A Dark Sky Community is “a town, city, municipality, or other legally organized community that has shown exceptional dedication to the preservation of the night […]