# Markarian 471

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Seyfert 2 galaxy in the constellation Boötes

Markarian 471 SDSS image of Markarian 471. Observation data (J2000 epoch) Constellation Boötes Right ascension 14h 22m 55.33s[1] Declination +32° 51′ 02.43″[1] Redshift 0.034189[1] Heliocentric radial velocity 10,250 km/s ± 2[1] Distance 489 Mly Apparent magnitude (V) 14.42 Apparent magnitude (B) 15.27 Characteristics Type SBa Sy1.8[1] Size ~169,000 ly (51.7 kpc) (estimated)[1] Other designations UGC 9214, CG 0411, CGCG 192-009, MCG +06-32-014, IRAS 14207+3304, PGC 51371, NSA 081577[1]

**Markarian 471** also known as **MRK 471**, is a Type 1 [Seyfert galaxy](/source/Seyfert_galaxy)[2] located in the constellation of [Boötes](/source/Bo%C3%B6tes). The [redshift](/source/Redshift) of the galaxy is (z) 0.0341[1] and it was first discovered by Thomas F. Adams from a survey of Seyfert galaxies in January 1977.[3]

## Description

Markarian 471 is classified as a type SBa [barred spiral galaxy](/source/Barred_spiral_galaxy) or a theta-shaped spiral.[4][5][6] The circumnuclear region of the galaxy is found to have a [dust](/source/Cosmic_dust) obscured appearance with ultraviolet imaging showing a nucleus that is point-like and [star forming](/source/Star_formation) blob regions that are scattered in all directions with many [star clusters](/source/Star_cluster).[7]

There is also presence of several [dust lanes](/source/Dust_lane) along the direction of the galaxy's galactic bar, which in turn enters into the circumnuclear region of the galaxy. The [spiral arms](/source/Spiral_arm) are suggested to curve in an inwards direction.[8] Dust structures within the stellar bar region are shown to connect together and subsequently going towards the center in a curve formation forming a type GD structure.[9] There is also a nuclear spiral region present with an approximate mass [surface density](/source/Area_density) of 16 M☉ pc−2.[10]

A multi-wavelength study of the galaxy's [spectrum](/source/Spectrum), has found it is a Type 1.9 Seyfert galaxy with a [narrow-line region](/source/Active_galactic_nucleus) that is extremely reddened. However, there are no signs of any board components that are classified as very variable.[11]

## Supernova

One [supernova](/source/Supernova) has been observed in Markarian 471:

- **SN 2026dds** ([Type Ia](/source/Type_Ia_supernova), mag. 19.9161) was discovered by the [Zwicky Transient Facility](/source/Zwicky_Transient_Facility) on 7 February 2026.[12]

## References

1. ^ [***a***](#cite_ref-ned_1-0) [***b***](#cite_ref-ned_1-1) [***c***](#cite_ref-ned_1-2) [***d***](#cite_ref-ned_1-3) [***e***](#cite_ref-ned_1-4) [***f***](#cite_ref-ned_1-5) [***g***](#cite_ref-ned_1-6) [***h***](#cite_ref-ned_1-7) ["NED Search results for Markarian 471"](https://ned.ipac.caltech.edu/byname?objname=UGC+9214&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1). *NASA/IPAC Extragalactic Database*. Retrieved 2025-12-21.

1. **[^](#cite_ref-2)** de Vaucouleurs, G.; de Vaucouleurs, A.; Corwin, J. R. (1976). ["Second reference catalogue of bright galaxies"](https://ui.adsabs.harvard.edu/abs/1976RC2...C......0D/abstract). *Second reference catalogue of bright galaxies*. **1976**: 0.

1. **[^](#cite_ref-3)** Adams, Thomas F. (January 1977). ["A Survey of the Seyfert Galaxies Based on Large-Scale Image-Tube Plates"](https://articles.adsabs.harvard.edu/pdf/1977ApJS...33...19A). *The Astrophysical Journal Supplement Series*. **33**: 19. [doi](/source/Doi_(identifier)):[10.1086/190416](https://doi.org/10.1086%2F190416). [ISSN](/source/ISSN_(identifier)) [0067-0049](https://search.worldcat.org/issn/0067-0049).

1. **[^](#cite_ref-4)** Martini, Paul; Pogge, Richard W. (December 1999). ["Hubble Space Telescope Observations of the CFA Seyfert 2 Galaxies: The Fueling of Active Galactic Nuclei"](https://arxiv.org/pdf/astro-ph/9909032). *The Astronomical Journal*. **118** (6): 2646–2657. [arXiv](/source/ArXiv_(identifier)):[astro-ph/9909032](https://arxiv.org/abs/astro-ph/9909032). [doi](/source/Doi_(identifier)):[10.1086/301140](https://doi.org/10.1086%2F301140). [ISSN](/source/ISSN_(identifier)) [0004-6256](https://search.worldcat.org/issn/0004-6256).

1. **[^](#cite_ref-5)** McLeod, K. K.; Rieke, G. H. (March 1995). ["Near-Infrared Imaging of CfA Seyfert Galaxies"](https://articles.adsabs.harvard.edu//full/1995ApJ...441...96M/0000098.000.html). *The Astrophysical Journal*. **441**: 96. [doi](/source/Doi_(identifier)):[10.1086/175339](https://doi.org/10.1086%2F175339). [ISSN](/source/ISSN_(identifier)) [0004-637X](https://search.worldcat.org/issn/0004-637X).

1. **[^](#cite_ref-6)** Takase, B.; Miyauchi-Isobe, N. (1984). ["Kiso survey for ultraviolet-excess galaxies. I."](https://ui.adsabs.harvard.edu/abs/1984AnTok..19..595T/abstract) *Annals of the Tokyo Astronomical Observatory*. **19**: 595–638. [ISSN](/source/ISSN_(identifier)) [0082-4704](https://search.worldcat.org/issn/0082-4704).

1. **[^](#cite_ref-7)** Muñoz Marín, VÍctor M.; González Delgado, Rosa M.; Schmitt, Henrique R.; Cid Fernandes, Roberto; Pérez, Enrique; Storchi-Bergmann, Thaisa; Heckman, Tim; Leitherer, Claus (August 2007). ["An Atlas of the Circumnuclear Regions of 75 Seyfert Galaxies in the Near-Ultraviolet with the Hubble Space Telescope Advanced Camera for Surveys"](https://arxiv.org/pdf/0704.3617). *The Astronomical Journal*. **134** (2): 648–667. [arXiv](/source/ArXiv_(identifier)):[0704.3617](https://arxiv.org/abs/0704.3617). [doi](/source/Doi_(identifier)):[10.1086/519448](https://doi.org/10.1086%2F519448). [ISSN](/source/ISSN_(identifier)) [0004-6256](https://search.worldcat.org/issn/0004-6256).

1. **[^](#cite_ref-8)** Martini, Paul; Regan, Michael W.; Mulchaey, John S.; Pogge, Richard W. (June 2003). ["Circumnuclear Dust in Nearby Active and Inactive Galaxies. I. Data"](https://iopscience.iop.org/article/10.1086/367817/pdf). *The Astrophysical Journal Supplement Series*. **146** (2): 353–406. [arXiv](/source/ArXiv_(identifier)):[astro-ph/0212396](https://arxiv.org/abs/astro-ph/0212396). [doi](/source/Doi_(identifier)):[10.1086/367817](https://doi.org/10.1086%2F367817). [ISSN](/source/ISSN_(identifier)) [0067-0049](https://search.worldcat.org/issn/0067-0049).

1. **[^](#cite_ref-9)** Deo, R. P.; Crenshaw, D. M.; Kraemer, S. B. (July 2006). ["The Host Galaxies of Narrow-Line Seyfert 1 Galaxies: Nuclear Dust Morphology and Starburst Rings"](https://arxiv.org/pdf/astro-ph/0603806). *The Astronomical Journal*. **132** (1): 321–346. [arXiv](/source/ArXiv_(identifier)):[astro-ph/0603806](https://arxiv.org/abs/astro-ph/0603806). [doi](/source/Doi_(identifier)):[10.1086/504894](https://doi.org/10.1086%2F504894). [ISSN](/source/ISSN_(identifier)) [0004-6256](https://search.worldcat.org/issn/0004-6256).

1. **[^](#cite_ref-10)** Martini, Paul; Pogge, Richard W. (December 1999). ["Hubble Space Telescope Observations of the CFA Seyfert 2 Galaxies: The Fueling of Active Galactic Nuclei"](https://arxiv.org/pdf/astro-ph/9909032). *The Astronomical Journal*. **118** (6): 2646–2657. [arXiv](/source/ArXiv_(identifier)):[astro-ph/9909032](https://arxiv.org/abs/astro-ph/9909032). [doi](/source/Doi_(identifier)):[10.1086/301140](https://doi.org/10.1086%2F301140). [ISSN](/source/ISSN_(identifier)) [0004-6256](https://search.worldcat.org/issn/0004-6256).

1. **[^](#cite_ref-11)** Trippe, M. L.; Crenshaw, D. M.; Deo, R. P.; Dietrich, M.; Kraemer, S. B.; Rafter, S. E.; Turner, T. J. (December 2010). ["A Multi-wavelength Study of the Nature of Type 1.8/1.9 Seyfert Galaxies"](https://arxiv.org/pdf/1010.2750). *The Astrophysical Journal*. **725** (2): 1749–1767. [arXiv](/source/ArXiv_(identifier)):[1010.2750](https://arxiv.org/abs/1010.2750). [doi](/source/Doi_(identifier)):[10.1088/0004-637X/725/2/1749](https://doi.org/10.1088%2F0004-637X%2F725%2F2%2F1749). [ISSN](/source/ISSN_(identifier)) [0004-637X](https://search.worldcat.org/issn/0004-637X).

1. **[^](#cite_ref-TNS-2026dds_12-0)** ["SN 2026dds"](https://www.wis-tns.org/object/2026dds). *Transient Name Server*. [IAU](/source/International_Astronomical_Union). Retrieved 20 February 2026.

## External links

- Markarian 471 on [WikiSky](/source/WikiSky): [DSS2](http://www.wikisky.org/?object=Markarian+471&img_source=DSS2), [SDSS](http://www.wikisky.org/?object=Markarian+471&img_source=SDSS), [GALEX](http://www.wikisky.org/?object=Markarian+471&img_source=GALEX), [IRAS](http://www.wikisky.org/?object=Markarian+471&img_source=IRAS), [Hydrogen α](http://www.wikisky.org/?object=Markarian+471&img_source=HALPHA), [X-Ray](http://www.wikisky.org/?object=Markarian+471&img_source=RASS), [Astrophoto](http://www.wikisky.org/?object=Markarian+471&img_source=IMG_all), [Sky Map](http://www.wikisky.org/?object=Markarian+471), [Articles and images](http://www.wikisky.org/starview?object=Markarian+471)

- [Markarian 471 on SIMBAD](https://simbad.cds.unistra.fr/simbad/sim-id?bibyear1=1850&bibyear2=%24currentYear&submit=Display&Ident=%402249118&Name=Z+192-9&bibdisplay=refsum&bibyear1=1850&bibyear2=%24currentYear#lab_bib)

v t e Constellation of Boötes Boötes in Chinese astronomy Boötes Void List of stars in Boötes Stars Bayer α (Arcturus) β (Nekkar) γ (Seginus) δ (Qigong) ε (Izar, Pulcherrima) ζ η (Muphrid) θ ι κ λ (Xuange) μ1 (Alkalurops) μ2 ν1 ν2 ξ ο π ρ (Kalasungsang) σ (Genghe) τ (Tepiamenit) υ φ χ ψ ω Flamsteed 1 2 3 6 (e) 7 9 10 11 12 (d) 13 14 15 18 20 22 (f) 24 (g) 26 31 32 33 34 (Alrumh) 38 (Merga) 39 40 44 (Quadrans) 45 (c) 46 (b) 47 (k) 50 Variable R S T RX ZZ AB BL BP BX BY CE CH CI CN CP CR CX CY (101 Vir) DE EK HN HP HD 118508 118889 122563 125040 125351 (A) 125658 126128 126129 126141 126200 126271 127304 127334 127726 128093 128198 129132 129357 130084 130603 130917 131040 131473 131496 (Arcalís) 132029 132406 132563 134064 134335 135438 135530 135944 141399 Other 2MASS J15031961+2525196 CFBDSIR 1458+10 Gliese 526 HAT-P-4 LHS 2924 PSR J1544+4937 SDSS J1416+1348 SDSS J1433+1011 TVLM 513-46546 WASP-14 WD 1425+540 ZTF J153932.16+502738.8 Exoplanets HAT-P-4b HD 128311 b c HD 132406 b HD 136418 b (Awasis) τ Boötis b TOI-1853 b WASP-14b Star clusters NGC 5466 Galaxies NGC 5008 5248 5251 5416 5490 5500 5504 5508 5514 5523 5529 5532 5533 5535 5539 5541 5544 5545 5548 5557 5559 5562 5579 5582 5591 5601 5603 5609 5613 5614 5615 5624 5629 5630 5641 5642 5653 5665 5676 5681 5682 5683 5698 5714 5722 5752 5753 5754 5755 5772 5778 5784 5790 5820 5821 5829 5837 5857 5875 5876 5886 5888 5896 5929 5930 5966 Numbered I II III Other 3C 295 3C 299 3C 300 3C 303 3C 315 4C 19.44 4C +26.42 7C 1354+2552 Abell 2009 BCG Arp 302 B2 1420+32 B2 1441+26 CEERS-2112 CEERS-93316 CEERS2-588 CLASS B1359+154 Cloverleaf quasar DDO 190 EGS-zs8-1 EGS-z11-R0 EGSY8p7 H1426+428 IC 4397 IC 4461 IC 4462 IC 4481 IC 4516 IRAS 13349+2438 IRAS 14394+5332 IRAS 15206+3342 LEDA 2108986 MACS 1423-z7p64 MACS J1447.4+0827 BCG Maisie's Galaxy Markarian 463 Markarian 471 Markarian 478 MS 1455.0+2232 BCG MS 1512-cB58 NVSS J141343+433945 OQ 172 OQ 530 PG 1411+442 PG 1543+489 PGC 93125 PGC 1470080 PKS 1345+125 PKS 1413+135 QSO B1422+202 RBS 1467 RGZ J145001.5+144747 RGZ J145039.8+441829 SBS 1415+437 SDSS J135646.10+102609.0 SDSS J1430+2303 Teacup galaxy UGC 8669 UGC 9128 UGC 9425 UGC 9684 UGC 9796 ULAS J1342+0928 VV 191 Galaxy clusters Abell 1795 Abell 1991 BoRG-58 IDCS J1426.5+3508 Astronomical events GRB 990123 GRB 080319B SCP 06F6 SN 2003fg SN 2005bc SN 2020tlf Category

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Adapted from the Wikipedia article [Markarian 471](https://en.wikipedia.org/wiki/Markarian_471) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Markarian_471?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.