Caroline's Rose

NGC 7789, also known as Caroline’s Rose, is an open star cluster located in the constellation Cassiopeia, roughly 8,000 light-years away. Discovered by Caroline Herschel in 1783, its poetic name comes from the intricate arrangement of stars and dark lanes that resemble the petals of a rose when observed through a telescope.

The cluster is estimated to be about 1.6 billion years old, making it relatively old for an open cluster. Its age contributes to the noticeable absence of massive, short-lived stars, leaving behind a rich population of red giants and fainter stars. Spanning about 25 light-years across, NGC 7789 offers a stunning view of stellar evolution within a densely packed region of space.