A hot Jupiter of corundum clouds would be a gas giant exoplanet with a thick atmosphere predominantly composed of corundum, which is a crystalline form of aluminum oxide. The corundum clouds would give the planet a shimmering, deep blue appearance when viewed from a distance. The color of corundum can vary, but a common shade is a rich, vibrant blue known as "Royal Blue" (#4169E1). The presence of corundum clouds would give the planet a mesmerizing blue hue, which would stand out against the darkness of space. If 51 Pegasi were to be a gas giant of corundum clouds, it would likely be a stunning and unique sight in the cosmos, attracting the attention of astronomers and space enthusiasts alike. The presence of corundum clouds on such a planet could also indicate extreme temperatures and atmospheric conditions, making it an intriguing subject for further scientific study.