What medium was used for 'The Starry Night'?

What medium was used for “The Starry Night”? The answer is oil on canvas.

Van Gogh painted The Starry Night with oil paints applied to a stretched canvas, the standard support for many major European paintings of the period. Oil paint allowed him to build the thick, energetic brushwork that gives the sky its swirling movement and makes the stars and moon appear intensely luminous.

Scientific pigment analysis has identified materials including ultramarine and cobalt blue in the sky. The stars and moon contain yellow pigments, including Indian yellow and zinc yellow. These colors were arranged for expressive effect rather than strict astronomical realism.

The work is sometimes confused with drawings or prints reproducing the image, but those reproductions are not the original medium. It is also distinct from watercolor, tempera, and acrylic: acrylic paint was not developed as a widely used modern artists’ medium until decades after Van Gogh’s death in 1890.