PGC 54493 is a barred spiral galaxy located about 490 million light-years away in the constellation Serpens. It is part of a galaxy group called Abell 2052. It has an estimated diameter of 140,000 light-years.
PGC 44691 is a spiral galaxy located about 350 million light-years away in the constellation Coma Berenices. It belongs to a galaxy cluster known as the Coma Cluster. In 1994, the Hubble Space Telescope observed PGC 44691 and the nearby elliptical galaxy NGC 4881 to infer the distance to the Coma Cluster.
NGC 503, also occasionally referred to as PGC 5086 or GC 5169, is an elliptical galaxy in the constellation Pisces. It is located approximately 265 million light-years from the Solar System and was discovered on 13 August 1863 by German astronomer Heinrich Louis d'Arrest.
NGC 6040 is a spiral galaxy located about 550 million light-years away in the constellation Hercules. NGC 6040 was discovered by astronomer Édouard Stephan on June 27, 1870. NGC 6040 is interacting with the lenticular galaxy PGC 56942. As a result of this interaction, NGC 6040's southern spiral arm has been warped in the direction toward PGC 56942. NGC 6040 and PGC 56942 are both members of the Hercules Cluster.
NGC 521, also occasionally referred to as PGC 5190 or UGC 962, is a barred spiral galaxy located approximately 224 million light-years from the Solar System in the constellation Cetus. It was discovered on 8 October 1785 by astronomer William Herschel.
NGC 3558 is an elliptical or a lenticular galaxy located 440 million light-years away in the constellation Ursa Major. It was discovered by the astronomer Heinrich d'Arrest on April 15, 1866. It is a member of the galaxy cluster Abell 1185 and is classified as a LINER galaxy.
NGC 4895 is a lenticular galaxy located 330 million light-years away in the constellation Coma Berenices. The galaxy was discovered by astronomer Heinrich d'Arrest on May 5, 1864 and is a member of the Coma Cluster.
NGC 901 is an elliptical galaxy in the constellation Aries. It is estimated to be 441 million light years from the Milky Way and has a diameter of approximately 50,000 ly. NGC 901 was discovered on September 5, 1864, by Albert Marth.
NGC 997 is an interacting galaxy in the constellation of Cetus. The galaxy was discovered by Albert Marth on 10 November 1863. It has a regularly rotating central molecular gas disk, containing a black hole of between 4 x 107 and 1.8 x 109 solar masses. Its speed relative to the cosmological background is 6,270 ± 45 km/s, corresponding to a Hubble distance of 92.5 ± 6.5 Mpc (~302 million ly).
NGC 646 is a large barred spiral galaxy located in the constellation Hydrus. Its speed relative to the cosmic microwave background is 8,145 ± 19 km/s, which corresponds to a Hubble distance of 120.1 ± 8.4 Mpc. NGC 646 was discovered by British astronomer John Herschel in 1834. It forms an interacting galaxy pair.
NGC 3647 is a small elliptical galaxy in the Leo constellation. The galaxy was first discovered on March 22, 1865 by Albert Marth who was a German astronomer. It is approximately 747 million light-years away. Due to its close proximity to five other elliptical galaxies, there was a bit of confusion for Marth to identify which object is NGC 3647.
NGC 3908 is one of the furthest NGC objects. It is an elliptical galaxy located 1.2 billion light-years away in the Leo constellation with an estimated 280,000 thousand light-years across in diameter. It was discovered on April 10, 1885, by Lewis Swift, who found the object too faint for the naked eye to see. The identification of the celestial object observed by Swift is uncertain. The coordinates place it approximately 7.5 arcminutes south-southwest of a galaxy previously listed, potentially identifying it as PGC 36967. However, astronomers Corwin and Gottlieb argue that the object is much fainter than Swift's descriptions suggest, indicating it may have been too faint for him to observe. Although the right ascension aligns with another of Swift's discoveries on the same night, the discrepancy in declination is notably larger. It remains unclear if PGC 36967 is NGC 3908, and it is equally probable that Swift's observed object is "lost," with any nearby galaxy merely coincidental to Swift's original position. Due to its relatively large size, NGC 3908 is considered a brightest cluster galaxy, a BCG.
NGC 2603 is a small compact spiral galaxy located 787 million light-years away in the constellation of Ursa Major from the Solar System. It was discovered by George Johnstone Stoney, an Irish astronomer, on February 9th, 1850. NGC 2603 has an estimated diameter of 81,000 light-years. It contains a narrow-line active galactic nucleus. The Hyperleda database associates NGC 2603 and NGC 2606 as one single galaxy. NASA/IPAC database on the other hand, classifies NGC 2603 as galaxy PGC 3133653.
CGCG 396-2 known as PGC 17532, is a peculiar galaxy located in the direction of Orion constellation approximately 523 million light-years away from the Milky Way. This galaxy shows multiple arm structures.
UGC 1840 known as Arp 145, are a pair of interacting galaxies located 250 million light-years away from the Solar System in the Andromeda constellation. Made up of two galaxies, UGC 1840 NED01 and UGC 1840 NED02, the two galaxies had recently collided with each other in which the elliptical galaxy has penetrated through the spiral galaxy's nucleus leaving a hole in its middle, thus forming a ring galaxy. With a diameter of 1.3 arc minutes, close to 100,000 thousand light-years, they are roughly the same size as the Milky Way.
IC 2431 are a group of interacting galaxies in the constellation of Cancer. They are located 684 million light-years away from the Solar System and were discovered on February 24, 1896, by Stephane Javelle.
IC 1166 are a pair of galaxies in the Corona Borealis constellation comprising IC 1166 NED01 and IC 1166 NED02. They are located 977 million light-years from the Solar System and were discovered on July 28, 1892, by Stephane Javelle.
IC 2759 is a small type E elliptical galaxy located in the constellation of Leo. It is located 350 million light-years away from the Solar System and was discovered on April 24, 1897, by Guillaume Bigourdan. Sometimes IC 2759 is confused with the spiral galaxy, PGC 34882 which is located south of the galaxy.
NGC 7222 is a large barred spiral galaxy with a ring structure, located in the constellation Aquarius. It is located 570 million light-years away from the Solar System and was discovered by German astronomer, Albert Marth on August 11, 1864.
NGC 5098 are a binary pair of distant galaxies located in Canes Venatici constellation. They are made up of one Type E elliptical galaxy, PGC 46529 or NGC 5098 NED01 located east and one Type ES-0 lenticular galaxy, PGC 46515 or NGC 5098 NED02 located west. Both galaxies are located 559 million light-years away from the Solar System and were discovered on April 29, 1827, by John Herschel.
