NGC 7222

Last updated
NGC 7222
NGC7222 - SDSS DR14.jpg
Sloan Digital Sky Survey image of barred spiral galaxy NGC 7222
Observation data (J2000 epoch)
Constellation Aquarius
Right ascension 22h 10m 51.760s
Declination +02d 06m 20.87s
Redshift 0.041195
Heliocentric radial velocity 12,350 km/s
Distance 568 Mly (174.1 Mpc)
Apparent magnitude  (V)14.59
Surface brightness 14.20 mag/am
Characteristics
Size281,000 ly
Apparent size  (V)1.2 x 1.2 arcmin
Other designations
PGC 68224, UGC 11934, CGCG 377-035, MCG +00-56-012, 2MASX J22105172+0206205, NSA 149629, SDSS J221051.74+020620.9, LEDA 68224

NGC 7222 is a large barred spiral galaxy with a ring structure, [1] located in the constellation Aquarius. [2] It is located 570 million light-years away from the Solar System [3] and was discovered by German astronomer, Albert Marth on August 11, 1864. [4]

Contents

NGC 7222 has a luminosity class of II and it has a broad H I line which contains regions of ionized hydrogen. [3] NGC 7222 also has a surface brightness of 14.20 mag/am, which means it is considered a low surface brightness galaxy (LSB). [5] LSBs are diffuse galaxies that have surface brightness one magnitude lower compared to the ambient night sky.

Supernova

One supernova has been discovered in NGC 7222 so far: SN 2008dr.

SN 2008dr

SN 2008dr was discovered by a team of astronomers; J. Leja, D. Madison, W. Li, and A. V. Filippenko from University of California, Berkeley as part of Lick Observatory Supernova Search (LOSS). [6] It had a magnitude of 16.8 and was located 1".3 west and 8".1 north of the nucleus. [7] [8] SN 2008dr was confirmed to be a Type Ia. [9] [10]

Companion galaxy

NGC 7222 with PGC 68229 (left) NGC 7222 pgc SDSS2.jpg
NGC 7222 with PGC 68229 (left)

NGC 7222 has a companion which is a spiral galaxy, PGC 68229, also known as CGCG 377-036. [11] The galaxy is located west of NGC 7222 at close proximity and is 579 million light-years distant. [12] It is possible both galaxies together make up a galactic pair. [4]

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<span class="mw-page-title-main">NGC 3746</span> Galaxy in the constellation Leo

NGC 3746 is a large barred spiral galaxy with a ring structure located in the Leo constellation. It is located 449 million light-years from the Solar System and has an approximate diameter of 165,000 light-years. NGC 3746 was discovered by Ralph Copeland on 9 February 1874 with subsequent observations made by Hermann Kobold, Lawrence Parsons and John Louis Emil Dreyer.

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<span class="mw-page-title-main">NGC 3509</span> Galaxy in the constellation Leo

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<span class="mw-page-title-main">NGC 3200</span> Large galaxy in the constellation Hydra

NGC 3200 is a large spiral galaxy located in the constellation Hydra. Its velocity relative to the cosmic microwave background is 3,877 ± 25 km/s, which corresponds to a Hubble distance of 57.2 ± 4.0 Mpc. NGC 3200 was discovered by American astronomer Edward Singleton Holden in 1882.

<span class="mw-page-title-main">NGC 5504</span> Spiral galaxy in the constellation Boötes

NGC 5504 is an intermediate barred spiral galaxy located in the constellation Boötes. Its speed relative to the cosmic microwave background is 5,482 ± 17 km/s, which corresponds to a Hubble distance of 80.9 ± 5.7 Mpc. NGC 5504 was discovered by French astronomer Édouard Stephan in 1880.

<span class="mw-page-title-main">NGC 3447</span> Barred Magellanic spiral galaxy in the constellation Leo

NGC 3447 is a barred Magellanic spiral galaxy located in the constellation Leo. Its speed relative to the cosmic microwave background is 1,405 ± 34 km/s, which corresponds to a Hubble distance of 20.7 ± 1.5 Mpc. It was discovered by the British astronomer John Herschel in 1836.

References

  1. ↑ "HyperLeda -object description". atlas.obs-hp.fr. Retrieved 2024-05-06.
  2. ↑ "NGC 7222". spider.seds.org. Retrieved 2024-05-10.
  3. 1 2 "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-05-06.
  4. 1 2 "NGC Objects: NGC 7200 - 7249". cseligman.com. Retrieved 2024-05-06.
  5. ↑ "Data from revised NGC and IC catalogue by Wolfgang Steinicke, NGC 7200 to 7299". astrovalleyfield.ca. Retrieved 2024-05-06.
  6. ↑ Leja, J.; Madison, D.; Li, W.; Filippenko, A. V. (2008-06-01). "Supernovae 2008ct, 2008dq, 2008dr, and 2008ds". Central Bureau Electronic Telegrams. 1419: 1. Bibcode:2008CBET.1419....1L.
  7. ↑ "SN 2008dr". w.astro.berkeley.edu. Retrieved 2024-05-06.
  8. ↑ "Bright Supernovae - 2008". www.rochesterastronomy.org. Retrieved 2024-05-06.
  9. ↑ "SN 2008dr | Transient Name Server". www.wis-tns.org. Retrieved 2024-05-06.
  10. ↑ González-Gaitán, S.; Hsiao, E. Y.; Pignata, G.; Förster, F.; Gutiérrez, C. P.; Bufano, F.; Galbany, L.; Folatelli, G.; Phillips, M. M.; Hamuy, M.; Anderson, J. P.; de Jaeger, T. (2014-10-23). "DEFINING PHOTOMETRIC PECULIAR TYPE Ia SUPERNOVAE". The Astrophysical Journal. 795 (2): 142. arXiv: 1409.4811 . Bibcode:2014ApJ...795..142G. doi:10.1088/0004-637x/795/2/142. ISSN   1538-4357.
  11. ↑ "HyperLeda -object description for PGC 68229". atlas.obs-hp.fr. Retrieved 2024-05-06.
  12. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-05-06.
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