NGC 4302 | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Coma Berenices |
Right ascension | 12h 21m 42.5s [1] |
Declination | 14° 35′ 54″ [1] |
Redshift | 0.003833 [1] |
Heliocentric radial velocity | 1,149 km/s [1] |
Distance | 55 Mly (17 Mpc) [1] |
Group or cluster | Virgo Cluster |
Apparent magnitude (V) | 13.6 [1] |
Characteristics | |
Type | Sc [1] |
Mass | 1.0×1011 [2] M☉ |
Size | ~106,000 ly (32.5 kpc) (estimated) [1] |
Apparent size (V) | 2.78 × 0.75 [1] |
Other designations | |
CGCG 99-27, KCPG 332B, MCG 3-32-9, PGC 39974, UGC 7418, VCC 497 [1] |
NGC 4302 is an edge-on spiral galaxy [3] located about 55 million light-years away [3] [4] in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 8, 1784 [5] and is a member of the Virgo Cluster. [4] [6] [7]
It is classified as a Seyfert galaxy and as a LINER galaxy. [3] [8] It also has a prominent, extended dust lane. [9] [10]
The disk of NGC 4302 contains extraplanar dust that is organized into filamentary structures and large dust complexes. The apparent bending of many of the large complexes toward the north of the galaxy appears to be due to an interaction with the intracluster medium caused by the motion of NGC 4302 as it falls into the Virgo Cluster.
The dense, dusty matter in the disk of NGC 4302 appears to be largely tracing matter ejected from the disk by energetic feedback from massive stars. [11]
First detected by Pildis et al., [12] NGC 4302 has a faint but prominent layer of extraplanar diffuse ionized gas (DIG) that extends out to a galactocentric radius of ~13,000 ly (4 kpc ) and a height of ~6,500 ly (2 kpc ) above the plane of the galaxy. [9] [10] [11] [13] [14]
The DIG appears to have been ionized by photoionization by OB stars. [13]
The presence of a boxy/peanut bulge in NGC 4302 [15] suggests that the galaxy contains a thickened bar that is viewed edge-on. [16]
The HI disk of NGC 4302 is truncated to within the optical disk to the south of the galaxy. [16] [17] [18] [19] [20] This truncation appears to be the result of ram pressure. [16] [17] [19]
Kantharia et al. and Zschaechner et al. both independently detected a tidal bridge between NGC 4302 and NGC 4298. The bridge is the result of a tidal interaction between the two galaxies. [2] [21] [22]
First identified by Chung et al., NGC 4302 has a ~52,000 ly (16 kpc ) [17] tail of neutral atomic hydrogen (HI) [2] [11] [16] [17] [18] [20] [23] that extends to the north of the galaxy. [16] [17] The tail appears to be a result of ram pressure [2] [11] [16] [17] [23] or by a tidal interaction with NGC 4298. [18] [23] However, NGC 4302 appears relatively undisturbed favoring the cause of the tail to be due to ram pressure. [23]
The HI tail is pointed away from M87 which suggests that NGC 4302 is falling into the center of the Virgo Cluster on a highly radial orbit. [16] [17]
NGC 4302 has hosted one supernova, [24] a Type IIL supernova designated as SN 1986E. [25] [26] The supernova was discovered by G. Candeo at the Asiago Observatory on April 13, 1986, with an apparent magnitude of 14.5. [25] [26]
Messier 86 is an elliptical or lenticular galaxy in the constellation Virgo. It was discovered by Charles Messier in 1781. M86 lies in the heart of the Virgo Cluster of galaxies and forms a most conspicuous group with another large galaxy known as Messier 84. It displays the highest blue shift of all Messier objects, as it is, net of its other vectors of travel, approaching the Milky Way at 244 km/s. This is due to both galaxies falling roughly towards the center of the Virgo cluster from opposing ends.
NGC 1042 is a spiral galaxy located in the constellation Cetus. The galaxy has an apparent magnitude of 14.0.
NGC 4323 is a lenticular or dwarf elliptical galaxy located about 52.5 million light-years away in the constellation Coma Berenices. The galaxy was discovered in 1882 by astronomer Wilhelm Tempel and is a member of the Virgo Cluster.
NGC 4388 is an active spiral galaxy in the equatorial constellation of Virgo. It was discovered April 17, 1784 by Wilhelm Herschel. This galaxy is located at a distance of 57 million light years and is receding with a radial velocity of 2,524km/s. It is one of the brightest galaxies of the Virgo Cluster due to its luminous nucleus. NGC 4388 is located 1.3° to the west of the cluster center, which translates to a projected distance of ≈400 kpc.
NGC 4178 is the New General Catalogue identifier for a barred spiral galaxy in the equatorial constellation of Virgo. It was discovered April 11, 1825 by English astronomer John Herschel. Located some 43.8 million light years away, this galaxy spans 2.3 × 0.4 arc minutes and is seen at a low angle, being inclined by 77° to the line of sight from the Earth. The morphological classification of NGC 4178 is SB(rs)dm, indicating that it has a bar feature at the core, and, per the '(rs)', has traces of a ring-like structure surrounding the bar. The 'dm' suffix indicates the spiral arms are diffuse, broken, and irregular in appearance with no bulge at the nucleus. This galaxy is a member of the Virgo Cluster, which is the richest nearby group of galaxies outside the Local Group and forms the core of the Virgo Supercluster.
NGC 4457 is an intermediate spiral galaxy located about 55 million light-years away in the constellation of Virgo. It is also classified as a LINER galaxy, a class of active galaxy defined by their spectral line emissions. NGC 4457 Is inclined by about 33°. It was discovered by astronomer William Herschel on February 23, 1784. Despite being listed in the Virgo Cluster Catalog as VCC 1145, NGC 4457 is a member of the Virgo II Groups which form an extension of the Virgo cluster.
NGC 4522 is an edge-on spiral galaxy located about 60 million light-years away within the Virgo Cluster in the constellation Virgo. NGC 4522 is losing its molecular gas though ram-pressure stripping as it plows though the cluster at a speed of more than 10 million kilometres per hour. The galaxy was discovered by astronomer John Herschel on January 18, 1828.
NGC 4586 is a spiral galaxy located about 50 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer William Herschel on February 2, 1786. Although listed in the Virgo Cluster Catalog, NGC 4586 is considered to be a member of the Virgo II Groups which form a southern extension of the Virgo cluster. NGC 4586 is currently in the process of infalling into the Virgo Cluster and is predicted to enter the cluster in about 500 million years.
NGC 4607 is an edge-on spiral galaxy located about 56 million light-years away in the constellation Virgo. NGC 4607 was discovered by astronomer R. J. Mitchell on April 24, 1854. The galaxy is a member of the Virgo Cluster.
NGC 4660 is an elliptical galaxy located about 63 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer William Herschel on March 15, 1784 and is a member of the Virgo Cluster.
NGC 3311 is a super-giant elliptical galaxy located about 190 million light-years away in the constellation Hydra. The galaxy was discovered by astronomer John Herschel on March 30, 1835. NGC 3311 is the brightest member of the Hydra Cluster and forms a pair with NGC 3309 which along with NGC 3311, dominate the central region of the Hydra Cluster.
NGC 708 is an elliptical galaxy located 240 million light-years away in the constellation Andromeda and was discovered by astronomer William Herschel on September 21, 1786. It is classified as a cD galaxy and is the brightest member of Abell 262. NGC 708 is a weak FR I radio galaxy and is also classified as a type 2 Seyfert galaxy.
NGC 759 is an elliptical galaxy located 230 million light-years away in the constellation Andromeda. NGC 759 was discovered by astronomer by Heinrich d'Arrest on September 17, 1865. It is a member of Abell 262.
NGC 4294 is a barred spiral galaxy with flocculent spiral arms located about 55 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer William Herschel on March 15, 1784 and is a member of the Virgo Cluster.
NGC 4298 is a flocculent spiral galaxy located about 53 million light-years away in the constellation Coma Berenices. The galaxy was discovered by astronomer William Herschel on April 8, 1784 and is a member of the Virgo Cluster.
NGC 4299 is a featureless spiral galaxy located about 55 million light-years away in the constellation Virgo. It was discovered by astronomer William Herschel on March 15, 1784 and is a member of the Virgo Cluster.
NGC 4305 is a dwarf spiral galaxy located about 100 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer John Herschel on May 2, 1829. Although considered to be a member of the Virgo Cluster, its high radial velocity and blue luminosity suggest it is in fact a background galaxy. The galaxy has a nearby major companion; NGC 4306.
NGC 4324 is a lenticular galaxy located about 85 million light-years away in the constellation Virgo. It was discovered by astronomer Heinrich d'Arrest on March 4, 1862. NGC 4324 has a stellar mass of 5.62 × 1010M☉, and a baryonic mass of 5.88 × 1010M☉. The galaxy's total mass is around 5.25 × 1011M☉. NGC 4324 is notable for having a ring of star formation surrounding its nucleus. It was considered a member of the Virgo II Groups until 1999, when its distance was recalculated and it was placed in the Virgo W Group.
NGC 3044 is a barred spiral galaxy in the equatorial constellation of Sextans. It was discovered on December 13, 1784, by German-born English astronomer William Herschel. In 1888, Danish astronomer J. L. E. Dreyer described it as "very faint, very large, very much extended 122°". It is located at an estimated distance of 67 million light years. In the B band of the UBV photometric system, the galaxy spans 4.70′ by 0.80′ with the major axis aligned along a position angle of 113°. It is a relatively isolated galaxy with no nearby companions. R. B. Tully in 1988 assigned it as a member of the widely displaced Leo Cloud.
NGC 4123 is a modest-sized, strongly-barred spiral galaxy located 75 million light-years away in the equatorial constellation of Virgo. It was discovered February 25, 1784 by William Herschel. This is a member of the Virgo cluster, and it belongs to a group of three galaxies. A companion galaxy, NGC 4116, lies at an angular separation of 14′ to the southwest. There is no indication of an interaction between the two galaxies. The third member of the group is NGC 4179.