No, we do not have photographic evidence of a distant star or galaxy suddenly appearing because its light just reached us. The phenomenon you are referring to is known as "instantaneous light arrival," where the light from a distant object finally reaches us after traveling across vast cosmic distances.
However, due to the finite speed of light, it takes time for light to travel from distant celestial objects to reach us on Earth. Therefore, when we observe objects in the night sky, we are essentially seeing them as they appeared in the past, often millions or even billions of years ago. The light from these objects has been traveling across space for a significant amount of time before reaching our telescopes.
While we can capture and study the light emitted by distant stars and galaxies, we don't have direct photographic evidence of them "suddenly appearing" as their light reaches us. The process of capturing light from distant objects requires long exposure times or repeated observations over time to gather enough photons to form a detailed image.
Photographs or images of distant celestial objects typically show them as they appeared over an extended period, allowing us to study their features, characteristics, and evolution.