General


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

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…


Lupus

Lupus

Located in the Southern Sky, Lupus is a constellation that is Latin for wolf. Lupus was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one of the 88 modern…


Messier 108 Messier 108 Surfboard Galaxy

Messier 108 Surfboard Galaxy

Messier 108, nicknamed the Surfboard Galaxy, is a barred spiral galaxy located in the constellation Ursa Major. The galaxy is circumpolar north of latitude 35N and can be seen throughout the year in the Pacific…