An astrophotographer captured the Pleiades star cluster, also known as the Seven Sisters, surrounded by a delicate blue nebula in a recent image. The photograph reveals wispy clouds of gas and dust reflecting the intense blue-white light emitted by the young, hot stars within the cluster.
The Pleiades sits roughly 440 light-years from Earth in the constellation Taurus. The cluster contains hundreds of stars, though only the brightest seven are visible to the naked eye. These stars formed approximately 100 million years ago, making them relatively young in astronomical terms.
The blue haze visible in the photograph results from reflection nebulae, where starlight bounces off dust particles rather than ionizing the gas, as occurs in emission nebulae. This scattering effect preferentially reflects shorter blue wavelengths, creating the characteristic blue glow surrounding the cluster.
Amateur astronomers can observe the Pleiades with binoculars or small telescopes during winter months in the Northern Hemisphere. The cluster remains one of the most frequently photographed deep-sky objects due to its brightness, proximity to Earth, and visual appeal.