Genesis 1:16 NIV

New International Version of

Am star (Wikipedia) An Am star or metallic-line star is a type of chemically peculiar star of spectral type A whose spectrum has strong and often variable absorption lines of metals such as zinc, strontium, zirconium, and barium, and deficiencies of others, such as calcium and scandium. The original definition of an Am star was one in which the star shows “an apparent surface underabundance of Ca (and/or Sc) and/or an apparent overabundance of the Fe group and heavier elements”.

God set them in the vault of the sky to give light on the earth, Genesis 1:17 NIV

and let them be lights in the vault of the sky to give light on the earth.” And it was so. Genesis 1:15 NIV