NGC 7098

Last updated
NGC 7098
NGC 7098 ESO.jpg
NGC 7098 by the Very Large Telescope.
Observation data (J2000 epoch)
Constellation Octans
Right ascension 21h 44m 16.1s [1]
Declination −75° 06′ 41″ [1]
Redshift 0.007942 [1]
Heliocentric radial velocity 2,381 km/s [1]
Distance 95 Mly
Apparent magnitude  (V)11.3 [1]
Characteristics
Type (R)SAB(rs)a [1]
Size~152,400.64 ly (estimated) [1]
Apparent size  (V)4' x 2.6' [1]
Other designations
ESO 48-5, IRAS 21393-7520, PGC 67266 [1]

NGC 7098 is a doubled barred spiral galaxy [2] located about 95 million light-years [3] away from Earth in the constellation of Octans. [4] [5] NGC 7098 has an estimated diameter of 152,400 light-years. [4] NGC 7098 was discovered by astronomer John Herschel on September 22, 1835. [6]

Contents

Characteristics

NGC 7098 has a very prominent bar that is shaped like a broad oval with very prominent, nearly straight ansae. Surrounding the bar, an inner ring made of four tightly wrapped spiral arms is found. Located outside of the inner ring, a well-defined outer ring surrounding the inner region appears to have formed due to the wrapping of two spiral arms. It appears that both rings are being affected by new star formation. However, there is no star formation in the core of NGC 7098 as shown by the absence of dust lanes. [2]

See also

Related Research Articles

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<span class="mw-page-title-main">NGC 7816</span> Galaxy in the constellation Pisces

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<span class="mw-page-title-main">NGC 4689</span> Galaxy in the constellation Coma Berenices

NGC 4689 is a spiral galaxy located about 54 million light-years away in the constellation of Coma Berenices. NGC 4689 is also classified as a LINER galaxy. NGC 4689 is inclined at an angle of about 36° which means that the galaxy is seen almost face-on to the Earth's line of sight. NGC 4689 was discovered by astronomer William Herschel on April 12, 1784. The galaxy is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4440</span> Galaxy in the constellation Virgo

NGC 4440 is a barred spiral galaxy located about 55 million light-years away in the constellation of Virgo. NGC 4440 was discovered by astronomer William Herschel on April 17, 1784. It is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4491</span> Galaxy in the constellation of Virgo

NGC 4491 is a dwarf barred spiral galaxy located about 55 million light-years away in the constellation Virgo. NGC 4491 was discovered by astronomer William Herschel on March 15, 1784. NGC 4491 is located in a subgroup of the Virgo Cluster centered on Messier 87 known as the Virgo A subgroup.

<span class="mw-page-title-main">NGC 3313</span> Galaxy in the constellation Hydra

NGC 3313 is a large barred spiral galaxy located about 55 megaparsecs away in the constellation Hydra. It was discovered by astronomer Ormond Stone in 1886 and is an outlying member of the Hydra Cluster.

References

  1. 1 2 3 4 5 6 7 8 9 "NASA/IPAC Extragalactic Database". Results for NGC 7098. Retrieved 2017-06-12.
  2. 1 2 "NGC 7098 – (R1R2')SAB(rs)ab". The de Vaucouleurs Atlas of Galaxies. Archived from the original on 2018-10-11. Retrieved 2017-06-28.
  3. ↑ "Seeing double". www.eso.org. Retrieved 2017-07-24.
  4. 1 2 "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-06-13.
  5. ↑ Rojas, Sebastián García. "Galaxy NGC 7098 – Galaxy in Octans Constellation · Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-08-08. Retrieved 2017-06-13.
  6. ↑ "New General Catalog Objects: NGC 7050 – 7099". cseligman.com. Retrieved 2017-06-13.


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