Modern observations support the probability of a real galaxy cluster in the background, but NGC 7331 is probably not involved and is much closer to us. Modern observations support the probability of a true background galaxy cluster, but NGC 7331 is probably not involved and is much closer to us. Wikipedia The spiral galaxy NGC 7331 in the constellation Pegasus can be seen with small telescopes under dark skies as a faint, out-of-focus spot. Modern observations support the likelihood of a true galaxy cluster in the background, but NGC 7331 is probably not involved and is much closer to us.
NGC 7331 was discovered by Wilhelm Herschel in 1784 and shows its full glory in long exposure photographs taken with large telescopes. NGC 7331, also known as Caldwell 30, is a non-bulky spiral galaxy about 40 million light years away in the constellation Pegasus. This, along with evidence of a very faint thread of material extending between Stephan’s Quintet and NGC 7331, suggests a past gravitational interaction.
What kind of galaxy is NGC 7331?
NGC 7331 is interesting in many ways because the galaxy’s bulge appears to rotate in the opposite direction to the disk, which is difficult to explain if this has been the case since the galaxy’s formation. Observations in the ultraviolet of GALEX, on the other hand, show only the star-forming regions in the spiral arms. NGC 7331 was first discovered in 1784 by the famous galaxy hunter William Herschel and is located about 45 million light years away in the constellation Pegasus (The Winged Horse). NGC 7331 is also often used as the starting point for Stephen’s Quintet, which is only half a degree away.
How many NGC galaxies are there?
On large scales, galaxies in clusters and superclusters are like soap bubbles, with galaxies on the surface and voids in between. These letters are abbreviations for astronomical catalogues that publish lists of known stars, nebulae, supernova remnants, galaxies and other objects in space. With a modest telescope and better skies, you can look for NGC 4647, a spiral galaxy that is practically in apparent contact. This massive galaxy cluster and all its members move through space together, but not all the galaxies in it are gravitationally bound.
De Vaucouleurs created a pseudo three-dimensional representation of the relationships between the galaxies, nicknamed the “Cosmic Lemon” because of its shape.
How is NGC 1232 similar to the Milky Way?
It is considered a prototype of a multi-armed regular spiral with signs of a bar in the core region, a small bulge and long arms that fan outwards to form a series of thin arms. Both galaxies could be associated with the Eridanus group of galaxies, but at a projected distance of 2.2 Mpc from the centre of the low-mass cluster, neither galaxy is likely to be bound to the cluster (Willmer et al. Cumulative size distribution of H ii regions for the inner (filled circle) and outer (open square) regions of NGC 1232, which is considered a prototype of a multi-armed regular spiral, with hints of a bar in the core region, a small bulge, and long arms spreading out into the outer regions to form a series of thin arms. Cumulative size distribution of the H ii regions for the inner (filled circle) and outer (open square) regions of NGC 1232 We also constructed the size distribution function and found that NGC 1232, like most galaxies, follows an exponential law.