NGC 660 – A Galaxy with a Polar Ring NGC 660 is a peculiar galaxy located in the constellation of Pisces, at an approximate distance of 40–45 million light-years. Its most extraordinary feature is the presence of a polar ring, a structure made of gas, dust and stars that orbits around the galaxy in a
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IC 342 – The Hidden Galaxy IC 342 is a spiral galaxy located in the constellation of Camelopardalis, the Giraffe. It is one of the relatively nearby galaxies to the Milky Way, yet it is surprisingly difficult to observe because it lies behind the plane of our own galaxy. The large amount of stars, gas
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NGC 246 – The Skull Nebula The planetary nebula NGC 246, known as the Skull Nebula and also catalogued as Caldwell 56, is located in the southern constellation of Cetus, the Whale. Its appearance resembles a skull suspended in space, a shape that stands out particularly in high-resolution astronomical images. This nebula is the result
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vdB 141 – The Ghost Nebula In the constellation of Cepheus lies one of the most striking and delicate regions of the deep sky: vdB 141, popularly known as the Ghost Nebula, and also identified as Sh 2-136. Its characteristic appearance comes from clouds of dust that reflect the light of stars located within and
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NGC 672 and IC 1727 – A Pair of Interacting Galaxies NGC 672 and IC 1727 form a remarkable pair of interacting galaxies located in the constellation of Triangulum. At a distance of roughly 7 million parsecs, or around 23 million light-years, they are close enough for their mutual gravity to have significantly affected their
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Sh2-188 – A Planetary Nebula Moving Through the Interstellar Medium Sh2-188 is a planetary nebula located in the constellation of Cassiopeia, also catalogued as PN G128.0−04.1 and Simeiz 22. Its appearance is particularly striking: a bright filamentary arc dominates one side, while much fainter emission extends in the opposite direction. This morphology makes Sh2-188 one
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Sh2-142 – The Wizard Nebula Sh2-142 is an H II region located in the constellation of Cepheus. It is commonly known as the Wizard Nebula, a name inspired by the shape that its clouds of gas and dust appear to form in astronomical images. At the heart of the nebula lies the young open star
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Arp 332 – A Chain of Galaxies in Eridanus Arp 332 is a grouping of galaxies located in the constellation of Eridanus, included by Halton Arp in his Atlas of Peculiar Galaxies. Unlike compact galaxy groups, Arp 332 stands out because of the elongated arrangement of its members, forming what appears to be a genuine
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NGC 6951 – A Spiral Galaxy with an Active Nucleus NGC 6951 is an intermediate spiral galaxy located in the constellation of Cepheus, approximately 78 million light-years from Earth. Its morphology is classified as SAB(rs)bc, indicating a spiral galaxy with a central bar and an associated ring-like structure. The galaxy displays well-defined spiral arms surrounding
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Hickson 90 – An Interacting Group of Galaxies Hickson 90 (HCG 90) is a compact group of galaxies located in the constellation of Piscis Austrinus, at a distance of approximately 110 million light-years. The group consists of several galaxies that are very close to one another and show evidence of gravitational interactions. The central region
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