Hipparchus was an ancient Greek astronomer who compiled first-known catalog of stars and first map of the skies.
Rupert Garsea (brazilian)
No, the sun is not the first star made. The sun is a relatively young star in the universe, formed billions of years after the first stars. The first stars in the universe were primarily made of hydrogen and helium.
The first correct observation was made by Tycho Brahe
The strong gravity that made them collapse in the first place keeps them together.
No. They are made mainly of stars and planets. The stars and planets came from gas and dust.
Charles messrer
No. Charles messier made the first catalogue of stars and skies. His first version published in 1774 and other in 1781
Charles messrer
Charles messrer
The first catalog of stars is credited to the Greek astronomer Hipparchus, who compiled his observations in the 2nd century BCE. Hipparchus cataloged around 850 stars and classified them based on their brightness.
Rupert Garsea (brazilian)
Charles messrer
The earliest known star catalogue was the "Almagest" compiled by Claudius Ptolemy, a Roman living in Alexandria, Egypt. However, Ptolemy refers to earlier sources that he used, which have not survived. Much of the scientific knowledge of ancient Greece and Rome were lost during the "Dark Ages", from about 500 AD to around 1200 AD. Fortunately, library in then-Muslim Cordova, Spain survived, and much of what we now know was recovered there.
The earliest known star catalogue was the "Almagest" compiled by Claudius Ptolemy, a Roman living in Alexandria, Egypt. However, Ptolemy refers to earlier sources that he used, which have not survived. Much of the scientific knowledge of ancient Greece and Rome were lost during the "Dark Ages", from about 500 AD to around 1200 AD. Fortunately, library in then-Muslim Cordova, Spain survived, and much of what we now know was recovered there.
The Sumerians and Egyptians certainly had star maps and catalogs, but these have been lost. The oldest star atlas that we have record of was compiled by the Greek-Egyptian astronomer Claudius Ptolemy about 2000 years ago, and his atlas survived only because it was translated into Arabic 1500 years ago, and was discovered in the libraries of Cordova and Toledo, Spain, when "El Cid" conquered the Arabs and unified Spain.
2 skies strapped together or standing up on a sledd
First stars made the smallest elements, from hydrogen up and progressively larger stars made progressively larger elements