In the field of photography, there is a specialty of night-time photography especially when subjects are lit primarily by starlight.[8] Directly taking images of night sky is also a part of astrophotography.[9] Starlight astrophotography can also be used for the pursuit of science and/or leisure.[10][11] Starlight photography can be important for observing nocturnal animals.[9] In many cases starlight photography may also overlap with a need to understand the impact of moonlight.[9]