The sun letters are this ones here : ت ث د ذ ر ز س ش ص ض ط ظ ل ن

The moon letters are this ones here : ء ب ج ح خ ع غ ف ق ك م ه و ي

( Follow the above alphabet with the coloured letters in red and black colours )

Edit : here is a video on how to pronounce the Arabic letters

https://yewtu.be/watch?v=8_60iWXl7dw