NGC 5468

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NGC 5468
A Dramatic Demise NGC 5468.jpg
NGC 5468 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Virgo
Right ascension 14h 06m 34.9186s [1]
Declination −05° 27′ 11.057″ [1]
Redshift 0.009480 ± 0.000013 [1]
Heliocentric radial velocity 2,842 ± 4 km/s [1]
Distance 138 ± 22.7 Mly (42.5 ± 7.0 Mpc) [1]
Apparent magnitude  (V)12.5 [2]
Characteristics
Type SAB(rs)cd [1]
Size~108,700  ly (33.32  kpc) (estimated) [1]
Apparent size  (V)2.6′ × 2.4′ [1]
Other designations
HOLM 585A, IRAS 14039-0512, UGCA 384, MCG -01-36-007, PGC 50323 [1]

NGC 5468 is an intermediate spiral galaxy located in the constellation Virgo. It is located at a distance of about 140 million light-years from Earth, which, given its apparent dimensions, means that NGC 5468 is about 110,000 light-years across. It was discovered by William Herschel on 5 March 1785. [3]

Contents

NGC 5468 is seen face-on, and the spiral pattern is open. The two principal arms emanate from a small bar and start to branch into several thin fragments after some distance. Three large H II regions and some fainter ones can be seen in the images of the Carnegie Atlas of Galaxies. [4] These regions feature intense star formation. SN 2005P was located at the edge of one of these regions. [5] As of 2024, NGC 5468 is the most distant galaxy in which Hubble Space Telescope has detected Cepheid variable stars, which are important milepost markers for measuring distances. [6]

NGC 5468 forms a non-interacting pair with NGC 5472, which lies at a projected distance of 5.1 arcminutes. NGC 5468 belongs to the NGC 5493 galaxy group. Other members of the group are the interacting pair Arp 271 (NGC 5426 and NGC 5427), NGC 5476, and NGC 5493. [7]

Supernovae

Six supernovae have been observed in NGC 5468:

Related Research Articles

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Messier 66 or M66, also known as NGC 3627, is an intermediate spiral galaxy in the southern, equatorial half of Leo. It was discovered by French astronomer Charles Messier on 1 March 1780, who described it as "very long and very faint". This galaxy is a member of a small group of galaxies that includes M65 and NGC 3628, known as the Leo Triplet or the M66 Group. M65 and M66 are a common object for amateur astronomic observation, being separated by only 20′.

<span class="mw-page-title-main">Antennae Galaxies</span> Interacting galaxies in the constellation Corvus

The Antennae Galaxies are a pair of interacting galaxies in the constellation Corvus. They are currently going through a starburst phase, in which the collision of clouds of gas and dust, with entangled magnetic fields, causes rapid star formation. They were discovered by William Herschel in 1785.

<span class="mw-page-title-main">NGC 4414</span> Galaxy in the constellation Coma Berenices

NGC 4414, also known as the Dusty Spiral Galaxy, is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices. It was discovered by German-British astronomer William Herschel on 13 March 1785.

<span class="mw-page-title-main">NGC 1316</span> Lenticular radio galaxy in the constellation Fornax

NGC 1316 is a lenticular galaxy about 60 million light-years away in the constellation Fornax. It is a radio galaxy and at 1400 MHz is the fourth-brightest radio source in the sky.

<span class="mw-page-title-main">NGC 2442 and NGC 2443</span> Spiral galaxy in the constellation Volans

NGC 2442 and NGC 2443 are two parts of a single intermediate spiral galaxy, commonly known as the Meathook Galaxy or the Cobra and Mouse. It is about 50 million light-years away in the constellation Volans. It was discovered by Sir John Herschel on December 23, 1834 during his survey of southern skies with a 18.25 inch diameter reflecting telescope from an observatory he set up in Cape Town, South Africa. Associated with this galaxy is HIPASS J0731-69, a cloud of gas devoid of any stars. It is likely that the cloud was torn loose from NGC 2442 by a companion.

<span class="mw-page-title-main">NGC 2207 and IC 2163</span> Pair of colliding spiral galaxies in the constellation Canis Major

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<span class="mw-page-title-main">NGC 4567 and NGC 4568</span> Interacting galaxy pair in the constellation Virgo

NGC 4567 and NGC 4568 are a set of unbarred spiral galaxies about 60 million light-years away in the constellation Virgo. They were both discovered by William Herschel in 1784. They are part of the Virgo Cluster of galaxies.

<span class="mw-page-title-main">NGC 3190</span> Galaxy in the constellation Leo

NGC 3190 is a spiral galaxy with tightly wound arms and lying in the constellation Leo. It was discovered by William Herschel in 1784. NGC 3190 is member of Hickson 44 galaxy group, estimated at around 80 million light years away, and consisting of four galaxies in a tight group - NGC 3193 is fairly featureless, NGC 3187 is a dim but striking spiral galaxy and NGC 3185 has a barred spiral structure with an outer ring. It is also a member of the NGC 3190 Group of galaxies, which is a member of the Leo II Groups, a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster.

<span class="mw-page-title-main">Arp 271</span> Interacting galaxies in the constellation Virgo

Arp 271 is a pair of similarly sized interacting spiral galaxies, NGC 5426 and NGC 5427, in the constellation of Virgo. It is not certain whether the galaxies are going to eventually collide or not. They will continue interacting for tens of millions of years, creating new stars as a result of the mutual gravitational attraction between the galaxies, a pull seen in the bridge of stars already connecting the two. Located about 130 million light-years away, the Arp 271 pair is about 130,000 light-years across. It was originally discovered in 1785 by William Herschel. It is speculated, that the Milky Way will undergo a similar collision in about five billion years with the neighbouring Andromeda Galaxy, which is currently located about 2.6 million light-years away.

<span class="mw-page-title-main">NGC 3938</span> Galaxy in the constellation Ursa Major

NGC 3938 is an unbarred spiral galaxy in the Ursa Major constellation. It was discovered on 6 February 1788 by William Herschel. It is one of the brightest spiral galaxies in the Ursa Major South galaxy group and is roughly 67,000 light years in diameter. It is approximately 43 million light years away from Earth. NGC 3938 is classified as type Sc under the Hubble sequence, a loosely wound spiral galaxy with a smaller and dimmer bulge. The spiral arms of the galaxy contain many areas of ionized atomic hydrogen gas, more so towards the center.

<span class="mw-page-title-main">NGC 4527</span> Spiral galaxy in the constellation Virgo

NGC 4527 is a spiral galaxy in the constellation Virgo. It was discovered by German-British astronomer William Herschel on 23 February 1784.

<span class="mw-page-title-main">NGC 3198</span> Galaxy in the constellation Ursa Major

NGC 3198, also known as Herschel 146 is a barred spiral galaxy in the constellation Ursa Major. It was discovered by William Herschel on 15 January 1788. NGC 3198 is located in the Leo Spur, which is part of the Virgo Supercluster, and is approximately 47 million light years away.

<span class="mw-page-title-main">NGC 488</span> Spiral galaxy in the constellation Pisces

NGC 488 is a face-on spiral galaxy in the constellation Pisces. It was discovered by German-British astronomer William Herschel on 13 December 1784. It is at a distance of about 90 million light-years away from Earth. Its diameter is estimated to be 52,6 Kpc. The galaxy has a large central bulge, and is considered a prototype galaxy with multiple spiral arms. Its arms are tightly wound. Star forming activity has been traced within the arms. The nucleus of NGC 488 has been found to be chemically decoupled, being twice as metal rich as the central bulge of the galaxy. NGC 488, with the exception of its smaller companions, that form NGC 488 group, is an isolated galaxy.

<span class="mw-page-title-main">NGC 1084</span> Galaxy in the constellation Eridanus

NGC 1084 is an unbarred spiral galaxy in the constellation Eridanus. It is located at a distance of about 63 million light-years away from the Milky Way. The galaxy was discovered by William Herschel on 10 January 1785. It has multiple spiral arms, which are not well defined. It belongs in the same galaxy group with NGC 988, NGC 991, NGC 1022, NGC 1035, NGC 1042, NGC 1047, NGC 1052 and NGC 1110. This group is in turn associated with the Messier 77 group.

<span class="mw-page-title-main">NGC 908</span> Spiral galaxy in the constellation Cetus

NGC 908 is an unbarred spiral galaxy in the constellation Cetus. It was discovered on 20 September 1786 by William Herschel. This galaxy is 56 million light years away from Earth. It is the main galaxy in the NGC 908 group, which also includes NGC 899, NGC 907, and IC 223.

<span class="mw-page-title-main">NGC 1448</span> Galaxy in the constellation Horologium

NGC 1448 is an unbarred spiral galaxy seen nearly edge-on in the constellation Horologium. It is at a distance of 55 million light years from Earth. It was discovered by British astronomer John Herschel on 24 October 1835. Herschel observed the galaxy again on 14 December 1835, resulting in it being listed twice in the New General Catalogue, as NGC 1448 and as NGC 1457.

<span class="mw-page-title-main">NGC 2642</span> Galaxy in the constellation Hydra

NGC 2642 is a barred spiral galaxy in the constellation of Hydra. Its velocity with respect to the cosmic microwave background is 4632 ± 21 km/s, which corresponds to a Hubble distance of 68.32 ± 4.79 Mpc. It was discovered by British astronomer John Herschel on 19 February 1830.

<span class="mw-page-title-main">NGC 2466</span> Galaxy in the constellation Volans

NGC 2466 is a spiral galaxy in the constellation of Volans. Its velocity with respect to the cosmic microwave background is 5428 ± 10 km/s, which corresponds to a Hubble distance of 261.2 ± 18.3 Mly (80.07 ± 5.61 Mpc). The galaxy was discovered by British astronomer John Herschel on 20 February 1835.

<span class="mw-page-title-main">NGC 6492</span> Galaxy in the constellation Pavo

NGC 6492 is a spiral galaxy in the constellation of Pavo. Its velocity with respect to the cosmic microwave background is 4351 ± 8 km/s, which corresponds to a Hubble distance of 209.3 ± 14.6 Mly (64.17 ± 4.49 Mpc). In addition, five non redshift measurements give a distance of 183.10 ± 12.28 Mly (56.140 ± 3.766 Mpc). The galaxy was discovered by British astronomer John Herschel on 22 July 1835.

<span class="mw-page-title-main">NGC 6754</span> Galaxy in the constellation Telescopium

NGC 6754 is a barred spiral galaxy in the constellation of Telescopium. Its velocity with respect to the cosmic microwave background is 3176 ± 11 km/s, which corresponds to a Hubble distance of 152.8 ± 10.7 Mly (46.84 ± 3.29 Mpc). Additionally, 10 non-redshift measurements give a distance of 137.15 ± 4.19 Mly (42.05 ± 1.285 Mpc). It was discovered by British astronomer John Herschel on 8 July 1834.

References

  1. 1 2 3 4 5 6 7 8 9 "NASA/IPAC Extragalactic Database". Results for object NGC 5468. Retrieved 2016-01-18.
  2. ↑ "Revised NGC Data for NGC 5468". spider.seds.org. Retrieved 25 November 2018.
  3. ↑ Seligman, Courtney. "NGC 5468 (= PGC 50323)". Celestial Atlas. Retrieved 19 November 2018.
  4. ↑ Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington
  5. ↑ Lyman, J. D.; James, P. A.; Perets, H. B.; Anderson, J. P.; Gal-Yam, A.; Mazzali, P.; Percival, S. M. (September 2013). "Environment-derived constraints on the progenitors of low-luminosity Type I supernovae". Monthly Notices of the Royal Astronomical Society. 434 (1): 527–541. arXiv: 1306.2474 . Bibcode:2013MNRAS.434..527L. doi: 10.1093/mnras/stt1038 .
  6. ↑ "NGC 5468 — Cepheid host galaxy | ESA/Webb". esawebb.org. 11 March 2024. Retrieved 20 July 2024.
  7. ↑ Makarov, Dmitry; Karachentsev, Igor (21 April 2011). "Galaxy groups and clouds in the local (z∼ 0.01) Universe". Monthly Notices of the Royal Astronomical Society. 412 (4): 2498–2520. arXiv: 1011.6277 . Bibcode:2011MNRAS.412.2498M. doi: 10.1111/j.1365-2966.2010.18071.x . S2CID   119194025.
  8. ↑ King, J. Y.; Li, W. D. (1999). "Supernovae 1999co and 1999cp". International Astronomical Union Circular (7205): 1. Bibcode:1999IAUC.7205....1K.
  9. ↑ "SN 1999cp". Transient Name Server. IAU . Retrieved 28 December 2024.
  10. ↑ Nakano, S.; Kushida, R. (2002). "Supernova 2002cr in NGC 5468". International Astronomical Union Circular (7890): 2. Bibcode:2002IAUC.7890....2N.
  11. ↑ "SN 2002cr". Transient Name Server. IAU . Retrieved 28 December 2024.
  12. ↑ Monard, B.; Li, W. (2002). "Supernova 2002ed in NGC 5468". International Astronomical Union Circular (7940): 1. Bibcode:2002IAUC.7940....1M.
  13. ↑ "SN 2002ed". Transient Name Server. IAU . Retrieved 28 December 2024.
  14. ↑ Burket, J.; Li, W. (2005). "Supernovae 2005N, 2005O, and 2005P". International Astronomical Union Circular (8472): 1. Bibcode:2005IAUC.8472....1B.
  15. ↑ "SN 2005P". Transient Name Server. IAU . Retrieved 28 December 2024.
  16. ↑ "SN 2018dfg". Transient Name Server. IAU . Retrieved 28 December 2024.
  17. ↑ "SN 2023cj". Transient Name Server. IAU . Retrieved 28 December 2024.
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