Backyard Stargazing – Spring 2020

Backyard Stargazing is a surprisingly simple and rewarding experience. In just one night you can learn to identify constellations and find objects like Globular Clusters, Nebulae, Supernova Remnants, Double Stars, and more!

New Feature – Billie’s Blog

Billie’s Blog is a new feature on DavidChandler.com bringing you quick bits of interesting information, explanations, Astronomy News, and general information for the amateur astronomer.

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.
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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 […]

IDAlights

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 […]