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  2. HD 140283 - Wikipedia

    en.wikipedia.org/wiki/HD_140283

    Dubbed the "Methuselah Star" by the popular press due to its age, [15] [16] the star must have formed soon after the Big Bang [1] and is one of the oldest stars known as of 2021. [5] The search for such very iron-poor stars has shown they are almost all anomalies in globular clusters and the Galactic Halo. This accords with a narrative that ...

  3. List of oldest stars - Wikipedia

    en.wikipedia.org/wiki/List_of_oldest_stars

    The age of the oldest known stars approaches the age of the universe, about 13.8 billion years. Some of these are among the first stars from reionization (the stellar dawn), ending the Dark Ages about 370,000 years after the Big Bang. [1] This list includes stars older than 12 billion years, or about 87% of the age of the universe.

  4. Egyptian astronomy - Wikipedia

    en.wikipedia.org/wiki/Egyptian_astronomy

    The astrolabic quadrant was invented in Egypt in the 11th century or 12th century, and later known in Europe as the "Quadrans Vetus" (Old Quadrant). [ 16 ] : 333 In 14th century Egypt , Najm al-Din al-Misri (c. 1325) wrote a treatise describing over 100 different types of scientific and astronomical instruments, many of which he invented himself.

  5. Astronomers spot one of the oldest stars ever

    www.aol.com/news/astronomers-spot-one-oldest...

    In fact, it's old enough to make our own star look like a youngster by comparison. The elderly star is called (deep breath) 2MASS J18082002–5104378 B, and what it lacks in a flashy name it more ...

  6. Sothic cycle - Wikipedia

    en.wikipedia.org/wiki/Sothic_cycle

    In the ninth century, Syncellus epitomized the Sothic Cycle in the "Old Egyptian Chronicle." Isaac Cullimore, an early Egyptologist and member of the Royal Society, published a discourse on it in 1833 in which he was the first to suggest that Censorinus had fudged the terminus date, and that it was more likely to fall in CE 136.

  7. Cassiopeia (constellation) - Wikipedia

    en.wikipedia.org/wiki/Cassiopeia_(constellation)

    AO Cassiopeiae is a binary system composed of an O8 main sequence star and an O9.2 bright giant that respectively weigh anywhere between 20.30 and 57.75 times and 14.8 and 31.73 times the mass of the Sun. [35] The two massive stars are so close to each other they distort each other into egg-shapes. [36]

  8. The Indestructibles - Wikipedia

    en.wikipedia.org/wiki/The_Indestructibles

    The Indestructibles (Ancient Egyptian: j.ḫmw-sk – literally "the ones not knowing destruction" [1] [2]) was the name given by ancient Egyptian astronomers to two bright stars which, at that time, could always be seen circling the North Pole. [3]

  9. Decan - Wikipedia

    en.wikipedia.org/wiki/Decan

    'Diagonal star table' from the late 11th Dynasty coffin lid; found at Asyut, Egypt. Roemer- und Pelizaeus-Museum Hildesheim. The decans (/ ˈ d ɛ k ən z /; Egyptian bꜣktw or baktiu, "[those] connected with work" [1]) are 36 groups of stars (small constellations) used in the ancient Egyptian astronomy to conveniently divide the 360 degree ecliptic into 36 parts of 10 degrees each, both for ...