the Islamic name for the star is Rub el-Hizb
en.m.wikipedia.org/wiki/Rub_el_Hizb
it's basically the Star of David. the moon and star comes from Muhammed's Night Journey where he flew from Mecca to Jerusalem in a dream and prayed with Jesus and Moses meaning peace on earth with all the (abrahmic) religions. there's a chapter in the Quran called The Star which is about it and starts with
وَٱلنَّجْمِ إِذَا هَوَىٰ
By the stars when they fade away!
There are lots of debates about what exactly it means:
down}. Ibn Abi Nujayh said, on the authority of Mujahid: What is meant by the star is the Pleiades when they set at dawn. This was also narrated on the authority of Ibn Abbas and Sufyan al-Thawri. Ibn Jarir preferred this view. Al-Suddi claimed that it was Venus.
Ad-Dahhak said: {And the star when it goes down} when the devils throw it. This statement has a valid meaning.
Al-A’mash narrated on the authority of Mujahid regarding his statement: {And the star when it goes down} , meaning: the Qur’an when it is revealed. This verse is like the verse in which Allah the Almighty said: {So I swear by the positions of the stars. And indeed, it is a great oath, if you but knew. Indeed, it is a noble Qur’an, in a protected Book. None touch it except the purified. A revelation from the Lord of the worlds} [Al-Waqi’ah: 75-80]
( والنجم إذا هوى ) يعني : القرآن إذا نزل . وهذه الآية كقوله تعالى : ( فلا أقسم بمواقع النجوم وإنه لقسم لو تعلمون عظيم إنه لقرآن كريم في كتاب مكنون لا يمسه إلا المطهرون تنزيل من رب العالمين ) [ الواقعة : 75 - 80 ] .
quran.ksu.edu.sa/tafseer/katheer/sura53-aya1.html