An open cluster is a type of star cluster made of tens to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age.
Al-Fatiha (Wikipedia) Al-Fatiha (Arabic: ٱلۡفَاتِحَةِ, romanized: al-Fātiḥa, lit. ’the Opening’) is the first chapter (sura) of the Quran. It consists seven verses (ayat) which consist of a prayer for guidance and mercy.