NGC 1163

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NGC 1163
NGC 1163 DSS.jpg
NGC 1163 as observed by Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Perseus
Redshift 0.0151
Distance 205 million light-years
Apparent magnitude  (V)13.5
Characteristics
Type SBc
Apparent size  (V)1.2' × 0.9'
Other designations
UGC 2483, PGC 11549

NGC 1163 is a barred spiral galaxy located in the constellation Perseus. It is situated approximately 205 million light-years away from Earth and has an apparent magnitude of 13.5. The galaxy was discovered by the German-British astronomer William Herschel on October 14, 1784.

Contents

Discovery

NGC 1163 was first observed by William Herschel on October 14, 1784, using his 18.7-inch reflecting telescope. The galaxy was later cataloged in the New General Catalogue (NGC) by John Louis Emil Dreyer. Its precise celestial coordinates place it in the Perseus constellation, making it a target for amateur and professional astronomers alike. [1]

Physical characteristics

NGC 1163 is classified as a barred spiral galaxy (SBc type) under the Hubble Sequence. The prominent bar structure at its center channels gas and dust toward the galaxy’s nucleus, fueling star formation. Its spiral arms are moderately tightly wound and exhibit regions of active star formation.

The galaxy spans an apparent size of about 1.2 by 0.9 arcminutes and shines with an apparent magnitude of 13.5, making it observable with mid-sized telescopes under dark-sky conditions. [2]

Location and observation

NGC 1163 is located in the constellation Perseus, which is best observed during winter in the Northern Hemisphere. The galaxy lies roughly 205 million light-years from Earth, as determined by its redshift (z = 0.0151). Amateur astronomers can observe NGC 1163 with mid-to-large aperture telescopes, and long-exposure astrophotography can reveal its bar structure and faint spiral arms. [3]

Environment and galaxy group

NGC 1163 is part of a loose galaxy group in the Perseus constellation. It interacts gravitationally with neighboring galaxies, which may have influenced its structure and bar formation. These gravitational interactions are thought to play a key role in redistributing gas and triggering star formation in the galaxy's arms. [4]

Scientific importance

NGC 1163 is of interest to astronomers studying barred spiral galaxies and their star formation dynamics. The bar structure acts as a mechanism for funneling material toward the galactic core, potentially fueling an active galactic nucleus (AGN). However, current observations suggest a relatively low AGN activity in NGC 1163.

Research into NGC 1163 also contributes to the broader understanding of galaxy evolution and the role of bars in galaxy morphology. [5]

Related Research Articles

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<span class="mw-page-title-main">NGC 1512</span> Galaxy in the constellation Horologium

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<span class="mw-page-title-main">NGC 4314</span> Galaxy in the constellation Coma Berenices

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<span class="mw-page-title-main">NGC 1672</span> Galaxy in the constellation Dorado

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<span class="mw-page-title-main">NGC 5665</span> Galaxy in the constellation Boötes

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<span class="mw-page-title-main">NGC 925</span> Galaxy in the constellation Triangulum

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<span class="mw-page-title-main">NGC 1433</span> Galaxy in the constellation Horologium

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<span class="mw-page-title-main">NGC 4102</span> Galaxy in the constellation Ursa Major

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<span class="mw-page-title-main">NGC 5949</span> Galaxy in the constellation Draco

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<span class="mw-page-title-main">NGC 4999</span> Galaxy in the constellation Virgo

NGC 4999 is a barred spiral galaxy located in the constellation Virgo, first discovered February 24, 1786 by astronomer William Herschel. The galaxy is noted as a particularly bright ultraviolet light source – it is believed that its notable bar structure suppresses star formation, indicating this ultraviolet light may possibly be due to a quasi-stellar object.

<span class="mw-page-title-main">NGC 1376</span> Galaxy in the constellation Eridanus

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<span class="mw-page-title-main">NGC 1167</span> Galaxy in the constellation Perseus

NGC 1167 is a late type, lenticular, nonbarred galaxy in the Perseus constellation. It was first observed and catalogued in 1784 by the astronomer William Herschel.

<span class="mw-page-title-main">NGC 1385</span> Galaxy in the constellation Fornax

NGC 1385 is a barred spiral galaxy in the constellation of Fornax. Its velocity with respect to the cosmic microwave background is 1381 ± 9 km/s, which corresponds to a Hubble distance of 20.37 ± 1.43 Mpc. In addition, 30 non redshift measurements give a distance of 15.999 ± 12.131 Mpc. The galaxy was discovered by German-British astronomer William Herschel on 17 November 1784.

<span class="mw-page-title-main">NGC 1162</span> Lenticular galaxy in the constellation Perseus

NGC 1162 is a lenticular galaxy located in the constellation Perseus. It was discovered by astronomer William Herschel on October 14, 1784. The galaxy lies approximately 200 million light-years away from Earth and is classified as a type SA0^−^ galaxy, indicating a smooth structure with little to no spiral features.

<span class="mw-page-title-main">NGC 1164</span>

NGC 1164 is a barred spiral galaxy located in the constellation Eridanus, approximately 60 million light-years from Earth. It was discovered by the astronomer John Herschel in 1834. NGC 1164 is classified as a (R')SAB(rs)b type spiral galaxy, with a prominent central bar structure and well-defined spiral arms.

<span class="mw-page-title-main">NGC 1165</span> Barred spiral galaxy in the constellation Fornax

NGC 1165 is a barred spiral galaxy located in the constellation Fornax. It lies approximately 230 million light-years away from Earth and was discovered by astronomer John Herschel in 1835.

<span class="mw-page-title-main">NGC 1166</span> Barred spiral galaxy in the constellation Eridanus

NGC 1166 is a barred spiral galaxy located in the constellation Eridanus. It is situated approximately 53 million light-years away from Earth and was discovered by the British astronomer John Herschel on November 17, 1834.

References

  1. ↑ "NASA/IPAC Extragalactic Database (NED) - NGC 1163". NASA/IPAC Extragalactic Database. Retrieved 2024-06-19.
  2. ↑ Clark, D. (2019). "Barred Spiral Galaxies and Their Star Formation Rates". Monthly Notices of the Royal Astronomical Society. 485 (3): 2345–2359. doi: 10.1093/mnras/stz084 .
  3. ↑ Johnson, R.K. (2017). Observing Spiral Galaxies. Cambridge University Press. pp. 89–92.
  4. ↑ "Galaxy Interactions and Structures: NGC 1163". Sloan Digital Sky Survey. Retrieved 2024-06-19.
  5. ↑ Smith, J.L. (2020). "Star Formation Patterns in Barred Spiral Galaxies". Astrophysical Journal. 895 (2): 120–133. doi: 10.3847/1538-4357/ab9234 (inactive 23 December 2024).{{cite journal}}: CS1 maint: DOI inactive as of December 2024 (link)
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