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Aṭ-Ṭāriq [1] (Arabic: الطارق, "the Morning Star", "Nightcomer"), is the eighty-sixth sura of the Quran, with 17 ayat or verses. Muslims believe this chapter was revealed in Mecca at a time when the disbelievers were employing all sorts of devices and plans to defeat and frustrate the message of the Quran and Muhammad.
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PSR B1620-26 b orbits a pair of stars.The primary star, PSR B1620-26, is a pulsar, a neutron star spinning at 100 revolutions per second, with a mass of 1.34 M ☉, a likely radius of around 20 kilometers (0.00003 R ☉) and a likely temperature less than or equal to 300,000 K.
A pulsar–neutron star system, e.g, PSR B1913+16. A pulsar and a normal star; e.g, PSR J0045−7319, a system that is composed of a pulsar and main-sequence B star. Theoretically, a pulsar-black hole system is possible and would be of enormous scientific interest but no such system has yet been identified.
This page shows Orion (al-jabbar, "the giant"). The star Rigel in his foot derives its name from the Arabic rijl, "foot." This is a list of Arabic star names. In Western astronomy, most of the accepted star names are Arabic, a few are Greek and some are of unknown origin. Typically only bright stars have names. [1]
PSR B1828-11 (also known as PSR B1828-10 [2]) is a pulsar approximately 10,000 light-years away in the constellation of Scutum.The star exhibits variations in the timing and shape of its pulses: this was at one stage interpreted as due to a possible planetary system in orbit around the pulsar, though the model required an anomalously large second period derivative of the pulse times. [3]