NGC 5861

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NGC 5861
NGC 5861 PanSTARRS1 i.r.g.jpg
NGC 5861 by PanSTARRS
Observation data (J2000 epoch)
Constellation Libra
Right ascension 15h 09m 16.1s [1]
Declination −11° 19′ 18″ [1]
Redshift 1851 ± 1 km/s [1]
Distance 84 Mly (25.9 Mpc) [1]
Apparent magnitude  (V)11.6
Characteristics
Type SAB(rs)c [1]
Apparent size  (V)3.0′ × 1.7′ [1]
Other designations
MCG -02-39-003, IRAS 15065-1107, PGC 54097 [1]

NGC 5861 is an intermediate spiral galaxy in constellation Libra. It is located at a distance of about 85 million light years from Earth, which, given its apparent dimensions, means that NGC 5861 is about 80,000 light years across.

Center image by Hubble Space Telescope NGC5861 - HST - Potw2019a.tif
Center image by Hubble Space Telescope

The galaxy features two long spiral arms that dominate the optical disk. [2] The one arm can be traced from its beginning at the center for nearly one and a half revolutions without branching, whereas the other starts to form fragments after one revolution, forming a moderately chaotic pattern. [3] The galaxy hosts a hydroxyl megamaser. [4]

Two supernovae have been observed in NGC 5861: SN 1971D (type unknown, mag. 15.5) [5] and SN 2017erp (type Ia, mag. 16.8). [6] Observations by Hubble Space Telescope indicate that possibly there is a light echo created by SN 1971D. [7]

NGC 5861 is the foremost member of a small galaxy group that also includes NGC 5858, which lies 9.6 arcmin north, forming a non-interactive pair. [8] It is located within the same galaxy cloud with NGC 5878. [9]

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<span class="mw-page-title-main">NGC 3367</span> Spiral galaxy in the constellation Leo

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<span class="mw-page-title-main">NGC 7130</span> Galaxy in the constellation Piscis Austrinus

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<span class="mw-page-title-main">NGC 7418</span> Galaxy in the constellation Grus

NGC 7418 is an intermediate spiral galaxy located in the constellation Grus. It is located at a distance of circa 60 million light-years from Earth, which, given its apparent dimensions, means that NGC 7418 is about 60,000 light-years across. It was discovered by John Herschel on August 30, 1834.

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 5861. Retrieved 2016-01-18.
  2. ↑ edited by David L. Block, Ivânio Puerari, Alan Stockton, Dewet Ferreira (2000). Toward a New Millennium in Galaxy Morphology. Dordrecht: Springer Netherlands. p. 16. ISBN   978-9401141147.{{cite book}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
  3. ↑ Sandage, A.; Bedke, J. (1994). The Carnegie Atlas of Galaxies. Volume I. Carnegie Institution of Washington.
  4. ↑ Darling, Jeremy; Giovanelli, Riccardo (July 2002). "A Search for OH Megamasers at z > 0.1. III. The Complete Survey". The Astrophysical Journal. 124 (1): 100–126. arXiv: astro-ph/0205185 . Bibcode:2002AJ....124..100D. doi:10.1086/341166. S2CID   7340232.
  5. ↑ Transient Name Server entry for SN 1971D. Retrieved 29 July 2024.
  6. ↑ Transient Name Server entry for SN 2017erp. Retrieved 29 July 2024.
  7. ↑ Boffi, F. R.; Sparks, W. B.; Macchetto, F. D. (15 August 1999). "A search for candidate light echoes: Photometry ofsupernova environments". Astronomy and Astrophysics Supplement Series. 138 (2): 253–266. arXiv: astro-ph/9906206 . Bibcode:1999A&AS..138..253B. doi:10.1051/aas:1999274. S2CID   17688690 . Retrieved 29 June 2017.
  8. ↑ de Vaucouleurs, G., de Vaucouleurs, A., and Corwin, H.G. (1976). Second Reference Catalogue of Bright Galaxies. Austin: University of Texas Press.{{cite book}}: CS1 maint: multiple names: authors list (link)
  9. ↑ 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.


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