Helios the sun god
Astronomy History

Who Discovered the Sun is a Star?

March 9, 2017 Peter Christoforou 0

Introduction In ancient Greece during the 7th century BC, scientists like Thales of Miletus (624-546 BC) started to realize that the Sun was not the deity Helios (Apollo) driving his chariot around the Earth, but […]

Star Magnitudes
FAQs

What are Star Magnitudes?

February 28, 2017 Peter Christoforou 0

In astronomy, the magnitude of a star refers to its measure of brightness, and while absolute magnitude relates to the star’s intrinsic brightness, apparent magnitude, on the other hand, is a way of measuring how […]

Star Constellation Facts: Circinus
Star Constellations

Star Constellation Facts: Circinus

January 19, 2017 Peter Christoforou 0

Circinus (“the compass”) commemorates the drawing instrument used by navigators, and is one of 14 southern sky constellations created by French astronomer Nicolas Louis de Lacaille in the 18th century. The constellation is circumpolar, with […]

Star Constellation Facts: Antlia
Star Constellations

Star Constellation Facts: Antlia

January 16, 2017 Peter Christoforou 0

Antlia is a faint southern sky constellation that was created by French astronomer Abbé Nicolas Louis de Lacaille during his 1751–52 expedition to South Africa. The constellation’s brightest star is Alpha Antliae, an orange giant […]

Star Constellation Facts: Crater
Star Constellations

Star Constellation Facts: Crater

January 15, 2017 Peter Christoforou 0

Crater (“the cup”) is one of the original constellations first recorded by Greek astronomer Ptolemy in his astronomical treatise called Almagest around 150 AD. This southern constellation is rather faint with its brightest star, Labrum, […]

Star Constellation Facts: Puppis
Star Constellations

Star Constellation Facts: Puppis

January 13, 2017 Peter Christoforou 0

Puppis (“the stern”) is one of 14 southern hemisphere constellations created by the French astronomer Nicolas Louis de Lacaille during his South African expedition of 1751–52. Its brightest star is Naos, a blue supergiant found […]

Star Constellation Facts: Pyxis
Star Constellations

Star Constellation Facts: Pyxis

January 12, 2017 Peter Christoforou 0

Pyxis is a faint southern constellation that was one of 14 created by French astronomer Nicolas Louis de Lacaille during his 1751-52 stay in South Africa. It depicts a mariner’s magnetic compass, but this small […]

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