| CGCG 396-2 | |
|---|---|
 | |
| Observation data | |
| Constellation | Orion |
| Redshift | 0.035370 |
| Distance | 523 Mly |
| Characteristics | |
| Size | 115,000 ly (estimated) |
| Other designations | |
| PGC 17532, 2MASX J05373599++0120038, NSA 134242 | |
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. [1] [2] This galaxy shows multiple arm structures. [3]
LEDA 83677 is a lenticular galaxy located about 290 million light-years away in the constellation Coma Berenices. It is a member of the Coma cluster of galaxies. LEDA 83677 is also classified as a type 1 Seyfert galaxy. The core of the galaxy is emitting high-energy X-rays and ultraviolet light, probably caused by a massive black hole lurking in the core.
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 502, also occasionally referred to as PGC 5034 or UGC 922, is a lenticular galaxy in the constellation Pisces. It is located approximately 113 million light-years from the Solar System and was discovered on 25 September 1862 by German astronomer Heinrich Louis d'Arrest. When the Morphological Catalogue of Galaxies was published between 1962 and 1974, the identifications of NGC 502 and NGC 505 were reversed. In reality, NGC 502 is equal to MGC +01-04-041 and not MCG +01-04-043 as noted in the catalogue.
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 734 is a lenticular galaxy with a central bar in the constellation Cetus, which is about 538 million light years from the Milky Way. It was discovered on November 9, 1885, by the American astronomer Francis Preserved Leavenworth.
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 3110, known as NGC 3122 and NGC 3518 is an active spiral galaxy in the Constellation Sextans. It contains extensive Hubble-type Sb star-forming regions, and is located south of the celestial equator. It is estimated to be 218 million light-years from the Milky Way and has a diameter of around 100,000 ly. Together with PGC 29184 it forms a gravitationally bound galaxy pair. Located in the same area of the sky is the galaxy IC 589.
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.
PGC 2387685 is a peculiar galaxy located 440 million light-years in the Hercules constellation. The galaxy seems to be gravitationally interacting with another neighboring galaxy PGC 3087279, which in turn causes both of the galaxies to have distorted shapes. Together, they form the galaxy pair, ZW I 136.
PGC 2046648 is a large spiral galaxy located 1.2 billion light-years away in the Hercules constellation. Its diameter is estimated 260,000 thousand light-years, meaning PGC 2046648 is much larger compared to the Milky Way.
PGC 29820 is a spiral galaxy located 600 million light-years away from the solar system in the Sextans constellation. It is about 120,000 thousand light-years in diameter and has high amounts of star formation rates. The reason is due to the ram pressure, which enables the dense gas to be compressed which eventually collapses to form new stars. Not only to mention, the galaxy's tendrils are also created, hence astronomers calling it a jellyfish galaxy. According to SIMBAD, it is classified as a Seyfert 2 galaxy which it contains an active nucleus.
PGC 65543, is a spiral galaxy, with extensive star forming regions, located in Indus. It is 650 million light-years away from the solar system and approximately measuring 90,000 light-years in diameter. The tidal interactions from certain galaxies which PGC 65543 is moving towards to, have caused it to get distorted. Its star-forming gas and dust are dynamically stripped and formed into tendrils that stretch outwards, thus gives an appearance of a jellyfish galaxy.
PGC 1228197 known as WINGS J211347.41+022834.9 and JO206, is a large spiral galaxy located 700 million light-years away towards the constellation of Aquarius. The galaxy is estimated to be at least 160,000 thousand light-years in diameter, making it somehow bigger than the Milky Way. With a radial velocity of 15,200 kilometers per second, it is slowly drifting away. It is classified as a jellyfish galaxy, mainly due to interactions from other galaxies, causing it to run into intracluster medium and stripping the gas from it, which causes long galactic tendrils of stars. It has an active galactic nucleus according to SIMBAD.
Arp 146 are a pair of interacting galaxies located 1.05 billion light-years away from Earth in the Cetus constellation. According to a study, one galaxy appears to have passed through another, leaving behind a ring formed from the bridge material and remnants of the nucleus. Under the Atlas of Peculiar Galaxies created by Halton Arp, they are categorized under galaxies that have associated rings.
PGC 4789 is a distant barred spiral galaxy in the Pisces constellation. It is located 675 million light-years from the Milky Way and seems to be interacting with its neighboring galaxies. it is known as Arp 48 in the Atlas of Peculiar Galaxies catalogue. In this class, PGC 4789 falls into galaxies that have at least one low surface brightness companion.
PGC 2456 known as KAZ 364 and JO201, is a spiral galaxy located in the constellation of Cetus. A member of Abell 85 galaxy cluster, it is located 617 million light-years away from the solar system and is considered a jellyfish galaxy due to the fact the tendrils are seen drifting downwards from its core. This mainly occurs when such galaxies like PGC 2456, moves through high speeds across the galaxy clusters, causing ram pressure to stripped gas, thus forming tendrils full of star formation. It is listed as a Seyfert galaxy by SIMBAD, meaning it has an active galactic nucleus. PGC 2456 lies 360 kiloparsecs from the brightest cluster galaxy, Holmberg 15A.
IC 5337 or JW100, is a spiral galaxy located 800 million light-years away from the solar system in the constellation of Pegasus. It is probably gravitationally bound to IC 5338, the brightest cluster galaxy in Abell 2626. IC 5337 is a jellyfish galaxy, mainly due to dynamic stripping pressure. Star-forming gas are thrown about, as the galaxy penetrates through the thin gas layer and causing them to drip from the galaxy's disc, giving it its unique appearance of a cosmic jellyfish. In the image, other galaxies can be seen in the background.
UGC 224 known as Arp 201, are pair of interacting galaxies located 860 million light-years in the constellation of Pisces.
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