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List of largest nebulae

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NGC 604, one of largest nebulae (H II region) is located in the Triangulum Galaxy (viewed by the Hubble Space Telescope).

Below is a list of the largest known nebulae so far discovered, ordered by actual diameter. This list is prone to change because of inconsistencies between studies, the great distances of nebulae from our stellar neighborhood, and the constant refinement of technology and engineering.

Caveats

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Nebulae have no standardized boundaries, so the measurements are subject to revision. Furthermore, scientists are still defining the features and parameters of nebulae. Because of these rapid developments and adjustments, this list may be unreliable.

List

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List of the largest nebulae
Image Nebula Maximum dimension
(in light-years/parsecs) 		Type Notes
NGC 262 Halo Cloud 1,300,000 ly (400,000 pc)[1] H I region Spiral nebula surrounding NGC 262, which is one of the largest known galaxies.
Leo Ring 650,000 ly (200,000 pc)[2] HVC A large ring of cold gas that formed from a collision of two galaxies.[3]
Magellanic Stream 600,000 ly (180,000 pc)[4] complex of HVCs Connects the Large and Small Magellanic clouds; extends across 180° of the sky.
Lyman-alpha blob 1 300,000 ly (92,000 pc)[5] LαB Largest blob in the LAB Giant Concentration[citation needed]
Himiko Gas Cloud 55,000 ly (17,000 pc)[6] Intergalactic cloud
(possible LαB) 		One of the most massive lyman-alpha blobs known
HVC 127-41-330 20,000 ly (6,100 pc)[7] HVC
Smith's Cloud 9,800 ly (3,000 pc)[8] HVC Extends about 20° of the sky
Tarantula Nebula 1,895 ly (581 pc)[9][a] H II region Most active starburst region in the Local Group
NGC 604 1,520 ly (470 pc)[10][11][b] H II region Largest H II region located in the Triangulum Galaxy
N44 1,000 ly (310 pc)[12] Emission nebula Contains a 250 light year wide superbubble that was probably formed from stellar winds.[13]
N11 1,000 ly (310 pc)[14] H II region N11 is the second largest star formation region in the Large Magellanic Cloud galaxy.
NGC 2404 940 ly (290 pc) H II region Largest H II region located in the spiral galaxy NGC 2403
NGC 595 880 ly (270 pc)[15] H II region Contains massive stars that have strong stellar winds.
Ring Nebula (NGC 6822) 838 ly (257 pc) H II region The Ring Nebula is located in the lower right of the image
Gum Nebula 809–950 ly (248–291 pc)[16][17] Emission nebula Extends about 36° of the sky
Bubble Nebula (NGC 6822) 758 ly (232 pc)[18][19][20] H II region The Bubble Nebula is located in the upper left of the image
NGC 6188 600 ly (180 pc)[21] Emission nebula
NGC 592 580 ly (180 pc)[22][23] H II region Located in the Triangulum Galaxy
Sh2-310 531–681 ly (163–209 pc)[24][c] H II region Nebula surrounding VY Canis Majoris, which is one of largest known stars.
Carina Nebula 460 ly (140 pc)[25] H II region Nearest giant H II region to Earth
Dragonfish Nebula 450 ly (140 pc)[26] Emission nebula
N119 430–570 ly (131–175 pc)[27] H II region Peculiar S-shape
RCW 49 350 ly (110 pc)[28] H II region
Soul Nebula 330 ly (100 pc)[29] H II region
Heart Nebula 330 ly (100 pc)[30] H II region Has been named the “Heart nebula” because of its resemblance to a human heart.
Henize 70 (N70 or DEM L301)[31] 300 ly (92 pc)[32] H II region The N 70 Nebula, in the Large Magellanic Cloud has a shell structure and is really a bubble in space. It is a "Super Bubble".
Barnard's Loop 300 ly (92 pc)[33][34] H II region Supernova over the last 4 million years probably carved cavities in gas clouds forming the semi circle shape of Barnard’s loop.
Sh2-54 252 ly (77 pc)[35][36] H II region
Prawn Nebula 250 ly (77 pc)[37] H II region
Simeis 147 160 ly (49 pc)[38] Supernova remnant
NGC 7822 150 ly (46 pc)[39] Emission nebula
IC 2944 142 ly (44 pc)[40][41] Emission nebula
Eagle Nebula 140 ly (43 pc)[42] H II region Part of another diffuse nebula IC 4703.
Rosette Nebula 130 ly (40 pc)[43] H II region Only 36 stars were known to be in this nebula but the Chandra telescope increased the number of known stars to 160.
Lagoon Nebula 110 ly (34 pc)[44] H II region
Veil Nebula 100–130 ly (31–40 pc)[45] Supernova remnant Located in the Cygnus Loop
NGC 3576 100 ly (31 pc)[46] Emission nebula
N41 100 ly (31 pc)[47] Emission nebula
The following well-known nebulae are listed for the purpose of comparison.
Orion Nebula 20 ly (6.132 pc)[48] Diffuse Nebula The closest major star formation region to Earth.[49]
Crab Nebula 11 ly (3.4 pc)[50] Supernova remnant The remnant of a supernova that occurred in 1054 AD.[51]
Bubble Nebula 6[52]-10[53][54] ly (1.84-3.066 pc) Emission nebula
Helix Nebula 5.74 ly (1.76 pc)[55] Emission nebula
Eightburst Nebula 0.8 ly (0.2453 pc)[56] Emission nebula
Homunculus Nebula 0.58 ly (0.1778 pc) [57] Emission nebula Surrounds the star system Eta Carinae.
Stingray Nebula 0.16 ly (0.049 pc)[58] Emission nebula One of the smallest nebulae.

See also

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Notes

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  1. ^ distance × sin( diameter_angle ) = 1,895 ly
  2. ^ distance × sin( diameter_angle ) = 1,520 ly
  3. ^ Those measurements are based on an apparent diameter of 480 arcminutes (') plus an assumed distance of 1.5 kpc and the current distance of VY CMa which is about 1.17 kpc as the nebula is sometimes found to have the same distance as VY CMa.

References

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  1. ^ "The New York Times". Distant galaxy found to be largest known. 1987-03-13. Archived from the original on 2019-05-17. Retrieved 2019-05-17.
  2. ^ Léo Michel-Dansa; Pierre-Alain Duc (2010). "The mysterious Leo giant gas ring explained by a billion year old collision between two galaxies". Canada France Hawaii Telescope. Archived from the original on 2013-10-10. Retrieved 2016-12-18.
  3. ^ "News CFHT - Leo Ring is a remnant of an old galaxy collision". www.cfht.hawaii.edu. Retrieved 2024-05-09.
  4. ^ "Magellanic Stream". COSMOS - The SAO Encyclopedia of Astronomy. Swinburne University of Technology. Archived from the original on October 21, 2018. Retrieved November 26, 2018.
  5. ^ "Giant Space Blob Glows from Within". ESO Press Release. 17 August 2011. Archived from the original on 28 September 2011. Retrieved 18 August 2011.
  6. ^ Hsu, Jeremy (2009-04-22). "Giant Mystery Blob Discovered Near Dawn of Time". SPACE.com. Archived from the original on 2009-04-23. Retrieved 2009-04-24.
  7. ^ Josh Simon (Spring 2005). Dark Matter in Dwarf Galaxies: Observational Tests of the Cold Dark Matter Paradigm on Small Scales (PDF) (PhD thesis). University of California, Berkeley. Bibcode:2005PhDT.........2S. Archived from the original (PDF) on September 13, 2006.
  8. ^ Lockman, Felix J.; Benjamin, Robert A.; Heroux, A. J.; Langston, Glen I. (May 2008). "The Smith Cloud: A High-Velocity Cloud Colliding with the Milky Way". The Astrophysical Journal. 679 (1): L21. arXiv:0804.4155. Bibcode:2008ApJ...679L..21L. doi:10.1086/588838. S2CID 118393177.
  9. ^ "Results for Tarantula Nebula". SEDS Students for the Exploration and Development of Space. Archived from the original on 2011-10-08. Retrieved 2007-05-08. 30 Doradus .. 49 kpc +- 3 kpc
  10. ^ Barba, Rodolfo (2004). "An in-depth analysis of a prototypical giant H II region: NGC 604". HST Proposal ID #10419: 10419. Bibcode:2004hst..prop10419B.
  11. ^ "NASA/IPAC Extragalactic Database". Results for NGC 604. Archived from the original on 2011-08-14. Retrieved 2006-09-03.
  12. ^ "Roses in the Southern Sky". ESO. 3 November 2003. Archived from the original on 3 February 2013. Retrieved 7 May 2012.
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  14. ^ "N11 complex in LMC". astronomy and observation. Archived from the original on 11 November 2017. Retrieved 5 November 2017.
  15. ^ "NGC 595: A Great Diffuse Nebula in M33". Archived from the original on 28 January 2013. Retrieved 13 Jan 2013.
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  19. ^ Karachentsev & Kashibadze 2006
  20. ^ Cannon et al. 2006
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  23. ^ "Site of Professor C. Seligman: NGC 550 - 599". cseligman.com. Archived from the original on 2015-09-10. Retrieved 2018-10-31.
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  25. ^ "NGC 3372 - The Eta Carinae Nebula". Atlas of the Universe. Archived from the original on 2013-05-12. Retrieved 2013-10-01.
  26. ^ "Dragonfish Coming at You in Infrared". NASA. Archived from the original on 2016-03-04. Retrieved 28 April 2017.
  27. ^ Ambrocio-Cruz, P.; Rosado, M.; Laval, A.; Le Coarer, E.; Russeil, D.; Amram, P. (July 22, 2008). "Kinematic field of the S-shaped nebula N119 in the LMC" (PDF). Revista Mexicana de Astronomía y Astrofísica. 44: 355. Bibcode:2008RMxAA..44..355A.
  28. ^ NASA Astronomy Picture of the Day: Cosmic Construction Zone RCW 49 (3 June 2004)
  29. ^ NASA Astronomy Picture of the Day: Deep Field: W5: The Soul Nebula (14 March 2023)
  30. ^ NASA Astronomy Picture of the Day: Deep Field: The Heart Nebula (13 December 2023)
  31. ^ "N70. HENIZE 70 – Astrodrudis". Archived from the original on 2019-05-17. Retrieved 2019-05-17.
  32. ^ "N70 Nebula in the Large Magellanic Cloud". www.eso.org. Archived from the original on 15 November 2018. Retrieved 15 November 2018.
  33. ^ Wilson, B.A.; Dame, T.M.; Masheder, M.R.W.; Thaddeus, P. (2005). "A uniform CO survey of the molecular clouds in Orion and Monoceros". Astronomy and Astrophysics. 430 (2): 523–539. arXiv:astro-ph/0411089. Bibcode:2005A&A...430..523W. doi:10.1051/0004-6361:20035943. S2CID 13916583. Archived from the original on 2018-12-12. Retrieved 2018-11-15.
  34. ^ O'Dell, C.R.; Ferland, G.J.; Porter, R.L.; van Hoof, P.A.M. (2011). "Physical Conditions in Barnard's Loop, Components of the Orion-eridanus Bubble, and Implications for the Warm Ionized Medium Component of the Interstellar Medium". The Astrophysical Journal. 733 (1): 9. arXiv:1103.2789. Bibcode:2011ApJ...733....9O. doi:10.1088/0004-637X/733/1/9. S2CID 5019523.
  35. ^ Sharpless, Stewart (December 1959). "A Catalogue of H II Regions". Astrophysical Journal Supplement. 4: 257. Bibcode:1959ApJS....4..257S. doi:10.1086/190049.
  36. ^ Reipurth, B. (December 2008). "The Young Cluster NGC 6604 and the Serpens OB2 Association". Handbook of Star Forming Regions, Volume II: The Southern Sky. 5: 590. Bibcode:2008hsf2.book..590R.
  37. ^ "Cosmic Recycling". Archived from the original on 7 September 2015. Retrieved 2 September 2015.
  38. ^ NASA Astronomy Picture of the Day: Supernova Remnant Simeis 147 (13 January 2022)
  39. ^ Seligman, Courtney. "New General Catalogue objects: NGC 7800 - 7840". cseligman.com. Archived from the original on 19 February 2017. Retrieved 14 March 2017.
  40. ^ Thackeray, A. D.; Wesselink, A. J. (1965). "A photometric and spectroscopic study of the cluster IC 2944". Monthly Notices of the Royal Astronomical Society. 131: 121–135. Bibcode:1965MNRAS.131..121T. doi:10.1093/mnras/131.1.121.
  41. ^ SEDS: IC 2944
  42. ^ "Messier 16". Archived from the original on 2018-10-04. Retrieved 2018-11-15.
  43. ^ NASA Astronomy Picture of the Day: The Rosette Nebula (14 February 2012)
  44. ^ NASA Astronomy Picture of the Day: The Lagoon Nebula without Stars (8 August 2022)
  45. ^ NASA Astronomy Picture of the Day: Western Veil Nebula without Stars (18 October 2023)
  46. ^ NASA Astronomy Picture of the Day: NGC 3576: The Statue of Liberty Nebula (28 September 2016)
  47. ^ Henize, Karl G. (September 1956). "Catalogues of Hα-emission Stars and Nebulae in the Magellanic Clouds". The Astrophysical Journal Supplement Series. 2: 315. Bibcode:1956ApJS....2..315H. doi:10.1086/190025. ISSN 0067-0049. S2CID 122024157.
  48. ^ Hillenbrand, Lynne A.; Hartmann, Lee W. (1998-01-10). "A Preliminary Study of the Orion Nebula Cluster Structure and Dynamics". The Astrophysical Journal. 492 (2): 540–553. Bibcode:1998ApJ...492..540H. doi:10.1086/305076. ISSN 0004-637X. S2CID 43038127.
  49. ^ "Messier 42 (The Orion Nebula) - NASA Science". science.nasa.gov. Retrieved 2024-05-09.
  50. ^ Hester, J. Jeff (2008-09-01). "The Crab Nebula: An Astrophysical Chimera". Annual Review of Astronomy and Astrophysics. 46 (1): 127–155. Bibcode:2008ARA&A..46..127H. doi:10.1146/annurev.astro.45.051806.110608. ISSN 0066-4146.
  51. ^ "Messier 1 (The Crab Nebula) - NASA Science". science.nasa.gov. Retrieved 2024-05-09.
  52. ^ HubbleSite 2000.
  53. ^ Nemiroff & Bonnell 2005.
  54. ^ Nemiroff & Bonnell 2006.
  55. ^ O'Dell, C. R.; McCullough, Peter R.; Meixner, Margaret (2004). "Unraveling the Helix Nebula: Its Structure and Knots". The Astronomical Journal. 128 (5): 2339–2356. arXiv:astro-ph/0407556. Bibcode:2004AJ....128.2339O. doi:10.1086/424621. S2CID 119507454.
  56. ^ Belland, Brent; Kirby, Evan; Boylan-Kolchin, Michael; Wheeler, Coral (2020-10-26). "NGC 6822 as a Probe of Dwarf Galactic Evolution". The Astrophysical Journal. 903 (1): 10. arXiv:2009.04555. Bibcode:2020ApJ...903...10B. doi:10.3847/1538-4357/abb5f4. ISSN 1538-4357.
  57. ^ Abraham, Zulema; Falceta-Gonçalves, Diego; Beaklini, Pedro P. B. (2014). "Η Carinae Baby Homunculus Uncovered by A/km/kmLMA". The Astrophysical Journal. 791 (2): 95. arXiv:1406.6297. Bibcode:2014ApJ...791...95A. doi:10.1088/0004-637X/791/2/95. S2CID 62893264.
  58. ^ Bobrowsky, M. (1994). "Narrowband HST imagery of the young planetary nebula Henize 1357". The Astrophysical Journal. 426: L47–L50. Bibcode:1994ApJ...426L..47B. doi:10.1086/187336.

Sources

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