Summer Triangle Asterisms


An asterism is a popularly known pattern or group of stars that can be seen in the night sky. Although this is very similar to a constellation, asterisk do differ as they are IAU officially recognized area of the sky….

Summer Triangle Asterisms

Summer Triangle

The Summer Triangle is a popularly known pattern or group of stars that can be seen in the night sky in the northern celestial hemisphere to help astronomers find other objects in the sky. The defining vertices of this imaginary triangle can be found…

Telescope Craigslist

What Is A Telescope?

What is a telescope? How do they work and what are they used for? These are some of the most basic questions about the topic of telescopes, but some of the most important in regards…

Galaxy Types

The Galaxy Types Explained

Before we get started talking about the types of galaxies, we should define the term and look at what exactly makes up a galaxy. A galaxy is a gravitationally bound system of stars, stellar remnants,…

Winter Hexagon open source software

Winter Hexagon

The Winter Hexagon is an asterism appearing to be in the form of a hexagon with vertices at Rigel, Aldebaran, Capella, Pollux, Procyon, and Sirius. It is mostly upon the Northern Hemisphere’s celestial sphere. On most locations on Earth, this asterism is prominently in the sky from approximately December…

Satellite Navigation

Satellite Navigation Systems

Satellite navigation systems, sometimes abbreviated as satnav, are systems that utilize satellites to provide autonomous geo-spatial positioning. To do this, these systems allow small electronic receivers to determine their location to high precision using time signals transmitted along a line of sight by radio from satellites….

NGC 10 Deep Sky Objects

Deep Sky Objects: An Introduction

Deep-sky objects, often shortened to DSOs, are any astronomical object that is not an individual star or Solar System object. The classification is used mostly by amateur astronomers to denote visually observed faint naked eye and telescopic objects such as star clusters, nebulae and galaxies. This distinction is…

Messier Objects

Messier Objects: An Introduction

The Messier Objects are a set of 110 astronomical objects catalogued by the French astronomer Charles Messier in his Catalogue des Nébuleuses et des Amas d’Étoiles. Interestingly, Charles Messier was actually fascinated with finding comets, which meant that to avoid confusing…