Day: July 29, 2021

The Tulip and Cygnus X 1

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This tall telescopic field of view looks out along the plane of our Milky Way Galaxy toward the nebula rich constellation Cygnus the Swan. Popularly called the Tulip Nebula, the brightest glowing cloud of interstellar gas and dust above center is also found in the 1959 catalog by astronomer Stewart Sharpless as Sh2-101. Nearly 70 light-years across the complex and beautiful Tulip Nebula blossoms about 8,000 light-years away, shown in a Hubble palette image that maps the glow of the nebula’s sulfur, hydrogen, and oxygen ions into red, green, and blue colors. Ultraviolet radiation from young energetic stars at the edge of the Cygnus OB3 association, including O star HDE 227018, ionizes the atoms and powers the emission from the Tulip Nebula. Also in the field of view is microquasar Cygnus X-1, one of the strongest X-ray sources in planet Earth’s sky. Driven by powerful jets from a black hole accretion disk, its fainter bluish curved shock front is only just visible though, directly above the cosmic Tulip’s petals near the top of the frame. via NASA https://ift.tt/3BQ0j7D

Wikipedia article of the day for July 29, 2021

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Wikipedia article of the day is Andreas Palaiologos. Check it out: Article-Link Summary: Andreas Palaiologos (1453–1502) was the elder son of Thomas Palaiologos, Despot of the Morea, and a nephew of ConstantineΒ XI Palaiologos, the final Byzantine emperor. After the fall of Constantinople in 1453 and the Ottoman invasion of the Morea in 1460, Andreas’s father fled to Corfu with his family. Upon his father’s death in 1465, Andreas moved to Rome and was recognized as the titular Despot of the Morea and as the chief claimant to the ancient imperial throne. Although his father had never claimed the title, Andreas proclaimed himself “Emperor of Constantinople” from 1483 onwards, a claim that was supported by some of the Byzantine refugees who lived in Italy. Andreas traveled around Europe in search of a ruler who could aid him in retaking Constantinople, but rallied little support. In 1481 an expedition he started organizing to restore the Byzantine Empire was canceled. He died in poverty in Rome in 1502 and was buried in St. Peter’s Basilica.