The Christian Bible says that at the birthplace of Abraham people worshiped the sun, moon and stars. Archaeologists found evidence that those people worshiped the sun, moon and "Star of Venus". However today astronomers affirm that this "Star of Venus" is actually the planet Venus, not a star. The Quran correctly describes it as a planet.
Star of Ishtar
The Star of Ishtar or Star of Inanna is a symbol of the ancient Sumerian goddess Inanna and her East Semitic counterpart Ishtar. Alongside the lion, it was one of Ishtar's primary symbols. Because Ishtar was associated with the planet Venus, the star is also known as the Star of Venus.
Those people thought that Venus was a star. However the Quran didn't do this mistake, it says that it is a planet.
Abraham said to his father Azar, “Do you take idols for gods? I see that you and your people are in evident error.” Thus We showed Abraham the empire of the heavens and the earth, that he might be one of those with certainty. When the night fell over him, he saw a planet. He said, “This is my lord.” But when it set, he said, “I do not love those that set.” Then, when he saw the moon rising, he said, “This is my lord.” But when it set, he said, “If my Lord does not guide me, I will be one of the erring people.” Then, when he saw the sun rising, he said, “This is my lord, this is bigger.” But when it set, he said, “O my people, I am innocent of your idolatry. I have directed my attention towards Him Who created the heavens and the earth—a monotheist—and I am not of the idolaters.”
٧٤ وَإِذْ قَالَ إِبْرَاهِيمُ لِأَبِيهِ آزَرَ أَتَتَّخِذُ أَصْنَامًا آلِهَةً ۖ إِنِّي أَرَاكَ وَقَوْمَكَ فِي ضَلَالٍ مُبِينٍ
٧٥ وَكَذَٰلِكَ نُرِي إِبْرَاهِيمَ مَلَكُوتَ السَّمَاوَاتِ وَالْأَرْضِ وَلِيَكُونَ مِنَ الْمُوقِنِينَ
٧٦ فَلَمَّا جَنَّ عَلَيْهِ اللَّيْلُ رَأَىٰ كَوْكَبًا ۖ قَالَ هَٰذَا رَبِّي ۖ فَلَمَّا أَفَلَ قَالَ لَا أُحِبُّ الْآفِلِينَ
٧٧ فَلَمَّا رَأَى الْقَمَرَ بَازِغًا قَالَ هَٰذَا رَبِّي ۖ فَلَمَّا أَفَلَ قَالَ لَئِنْ لَمْ يَهْدِنِي رَبِّي لَأَكُونَنَّ مِنَ الْقَوْمِ الضَّالِّينَ
٧٨ فَلَمَّا رَأَى الشَّمْسَ بَازِغَةً قَالَ هَٰذَا رَبِّي هَٰذَا أَكْبَرُ ۖ فَلَمَّا أَفَلَتْ قَالَ يَا قَوْمِ إِنِّي بَرِيءٌ مِمَّا تُشْرِكُونَ
٧٩ إِنِّي وَجَّهْتُ وَجْهِيَ لِلَّذِي فَطَرَ السَّمَاوَاتِ وَالْأَرْضَ حَنِيفًا ۖ وَمَا أَنَا مِنَ الْمُشْرِكِينَ
"Kaukab كَوْكَبً ۖ" means planet. Those people worshiped the sun, moon and a planet; not a star.
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