General

Horologium

Horologium

Horologium is a constellation of six stars faintly visible in the southern celestial hemisphere. The name in Latin for the pendulum clock, which comes from the Greek ὡρολόγιον, which means ‘an instrument for telling the…


Musca

Musca

Located in the southern sky, the constellation Musca which is Latin for “the fly” is a small constellation. It was one of 12 constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser…



Pavo

Pavo

Pavo is a constellation in the southern sky whose name is Latin for “peacock” that first appeared on a 35-cm diameter celestial globe published in 1598 in Amsterdam. It would later be depicted in Johann…


Mercury at Greatest Western Elongation Elongations

Elongation: An Introduction

In astronomy, a planet’s elongation is the angular separation between the Sun and the planet, with Earth as the reference point. The greatest elongation of a given inferior planet occurs when this planet’s position, in…



Cetus

Cetus

The constellation Cetus has a been depicted in many ways through history as several cultures have each had different depictions and mythologies for the constellation. The constellation represents in sea monster in Greek mythology, and…


2017 Solar Eclipse Solar Eclipse Planning 2024 eclipse state parks 2024 Eclipse Astronomy Public Lands 2045 Solar Eclipse 2045 Largest Cities North America 2027 solar eclipse

2024 Solar Eclipse Amateur Astronomy Clubs

In addition to our resources providing information about state parks and major cities in each US state that the solar eclipse passes through, here is some additional information about 2024 eclipse amateur astronomy clubs that…


Messier 110 Edward Young Star

Messier 110

Messier 110 is a dwarf elliptical galaxy that is a satellite of the Andromeda Galaxy. Although Charles Messier never included the galaxy in his list, it was depicted by him, together with M32, on a…


Messier 109

Messier 109

Messier 109 is a barred spiral galaxy exhibiting a weak inner ring structure around the central bar. This is a great springtime galaxy to view regardless of where one lives and can easily be found…