# NGC 5523

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Galaxy in the constellation of Bootes

NGC 5523 SDSS image of NGC 5523 Observation data (J2000 epoch) Constellation Boötes Right ascension 14h 14m 52.31s[1] Declination +25° 19′ 3.41″[1] Redshift 0.003488[1] Heliocentric radial velocity 1044 km/s[1] Galactocentric velocity 1093 km/s[2] Distance 49 ± 3 Mly (15.0 ± 1.0 Mpc)[2] Apparent magnitude (V) 12.75[2] Absolute magnitude (V) -18.1[nb 1] Characteristics Type SA(s)cd[3] Apparent size (V) 4.6' x 1.3'[2] Other designations UGC 9119, MCG +04-34-008, PGC 50895[1]

**NGC 5523** is an unbarred [spiral galaxy](/source/Spiral_galaxy) in the constellation of [Boötes](/source/Bo%C3%B6tes), registered in [New General Catalogue](/source/New_General_Catalogue) (NGC).[1] The galaxy forms an equilateral triangle with [NGC 5641](/source/NGC_5641) and [NGC 5466](/source/NGC_5466) when observed using a telescope from the ground.[4]

## Observation history

NGC 5523 was discovered by [William Herschel](/source/William_Herschel) on 19 May 1784 using 18.7-inch [f/13](/source/F-number) speculum telescope.[5][6] [John Louis Emil Dreyer](/source/John_Louis_Emil_Dreyer) inside the New General Catalogue, described it as "faint, pretty large, pretty much extended 90°, 10th magnitude star to northwest".[5] It was described in [Burnham's Celestial Handbook](/source/Robert_Burnham_Jr.) as "faint, pretty large (5.0'x0.8'), much elongated, nearly edge-on". Steve Coe, an American astronomer, described it as "faint, pretty large, much elongated (3 X 1) in PA 90 and brighter in the middle at 100X."[6]

## General

The galaxy was originally thought to be isolated due to its lack of interaction with other galaxies in the past 1 to 3 [billion years](/source/Billion_years). However, a 2016 study reported that some irregularities of the contour of the discs and nucleated bulge at the center of the galaxy suggested that the galaxy previously had soft collisions with other galaxies.[3]

## Notes

1. **[^](#cite_ref-3)** Calculated from Galactocentric GSR Distance modulus[2]

## References

1. ^ [***a***](#cite_ref-SIMBAD_1-0) [***b***](#cite_ref-SIMBAD_1-1) [***c***](#cite_ref-SIMBAD_1-2) [***d***](#cite_ref-SIMBAD_1-3) [***e***](#cite_ref-SIMBAD_1-4) [***f***](#cite_ref-SIMBAD_1-5) ["NGC 5523"](https://web.archive.org/web/20200722050827/http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC%205523). SIMBAD. Archived from [the original](http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC%205523) on 22 July 2020. Retrieved 14 August 2022.

1. ^ [***a***](#cite_ref-NASA/IPAC_2-0) [***b***](#cite_ref-NASA/IPAC_2-1) [***c***](#cite_ref-NASA/IPAC_2-2) [***d***](#cite_ref-NASA/IPAC_2-3) [***e***](#cite_ref-NASA/IPAC_2-4) ["Results for object NGC 5523"](https://web.archive.org/web/20220815145427/https://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=37359&objname=1&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1). NASA/IPAC Extragalactic Database. Archived from [the original](https://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=37359&objname=1&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1) on 15 August 2022. Retrieved 15 August 2022.

1. ^ [***a***](#cite_ref-Fulmer_4-0) [***b***](#cite_ref-Fulmer_4-1) Fulmer, Leah M; Gallagher III, John S.; Kotulla, Ralf (2017). "NGC 5523: An isolated product of soft galaxy mergers?". *Astronomy & Astrophysics*. **598**: A119. [arXiv](/source/ArXiv_(identifier)):[1611.05968](https://arxiv.org/abs/1611.05968). [Bibcode](/source/Bibcode_(identifier)):[2017A&A...598A.119F](https://ui.adsabs.harvard.edu/abs/2017A&A...598A.119F). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201628070](https://doi.org/10.1051%2F0004-6361%2F201628070). [S2CID](/source/S2CID_(identifier)) [119217039](https://api.semanticscholar.org/CorpusID:119217039).

1. **[^](#cite_ref-5)** Gilmour, Jess K. (2003). ["Bootes"](http://link.springer.com/10.1007/978-1-4471-0071-3_6). *The Practical Astronomer's Deep-sky Companion*. London: Springer London. pp. 16–18. [doi](/source/Doi_(identifier)):[10.1007/978-1-4471-0071-3_6](https://doi.org/10.1007%2F978-1-4471-0071-3_6). [ISBN](/source/ISBN_(identifier)) [978-1-85233-474-1](https://en.wikipedia.org/wiki/Special:BookSources/978-1-85233-474-1).

1. ^ [***a***](#cite_ref-Seligman_6-0) [***b***](#cite_ref-Seligman_6-1) Seligman, Courtney. ["NGC 5523 (= PGC 50895)"](https://cseligman.com/text/atlas/ngc55.htm#5523). Seligman website. Retrieved 14 August 2022.

1. ^ [***a***](#cite_ref-docdb_7-0) [***b***](#cite_ref-docdb_7-1) ["NGC 5523"](https://web.archive.org/web/20170903015928/http://www.docdb.net/show_object.php?id=ngc_5523). Deep Sky Observer's Companion – the online database. Archived from [the original](http://www.docdb.net/show_object.php?id=ngc_5523) on 3 September 2017. Retrieved 14 August 2022.

v t e Astronomical catalogs NGC NGC 5518 NGC 5519 NGC 5520 NGC 5521 NGC 5522 NGC 5523 NGC 5524 NGC 5525 NGC 5526 NGC 5527 NGC 5528 PGC PGC 50891 PGC 50892 PGC 50893 PGC 50894 PGC 50895 PGC 50896 PGC 50897 PGC 50898 PGC 50899 UGC UGC 9115 UGC 9116 UGC 9117 UGC 9118 UGC 9119 UGC 9120 UGC 9121 UGC 9122 UGC 9123

v t e New General Catalogue 5001 to 6000 5001 to 5100 5001 5002 5003 5004 5005 5008 5010 5011 5018 5020 5023 5024 5026 5030 5032 5033 5034 5042 5050 5053 5054 5055 5068 5078 5084 5085 5087 5090 5091 5098 5101 to 5200 5101 5102 5112 5114 5121 5128 5135 5139 5144 5161 5162/5174 5164 5170 5177 5185 5189 5194 5195 5198 5201 to 5300 5201 5204 5221 5223 5229 5235 5236 5238 5247 5248 5251 5252 5253 5256 5257 5258 5260 5264 5272 5273 5278 5279 5281 5286 5291 5300 5301 to 5400 5307 5308 5314 5315 5316 5322 5331 5334 5335 5343 5363 5364/5317 5371 5377 5384 5390 5394 5395 5398 5401 to 5500 5406 5408 5410 5416 5419 5422 5426 and 5427 5448 5455 5457 5460 5461 5466 5468 5470 5471 5473 5474 5475 5477 5483 5485 5486 5490 5493 5495 5500 5501 to 5600 5501 5502/5503 5504 5506 5508 5514 5516 5523 5529 5530 5532 5533 5535 5539 5541 5544 5545 5548 5557 5559 5566 5575/5578 5579 5582 5584 5585 5591 5597 5601 to 5700 5601 5605 5609 5613 5614 5615 5617 5619 5626 5629 5630 5634 5640 5641 5643 5653 5662 5665 5668 5676 5678 5679 5682 5683 5694 5701 to 5800 5701 5705 5713 5714 5719/5658 5722 5728 5746 5749 5750 5752 5753 5754 5755 5765 5772 5774 5775 5777 5778 5784 5790 5792 5793 5801 to 5900 5806 5820 5821 5822 5823 5824 5829 5837 5838 5844 5846 5850 5854 5856 5857 5861 5866 5875 5876 5879 5882 5885 5886 5890 5896 5897 5898 5901 to 6000 5904 5906 5907 5910 5915 5917 5920 5921 5925 5927 5928 5929 5930 5936 5939 5940 5949 5953 5957 5962 5963 5964 5965 5966 5970 5979 5980 5982 5985 5986 5988 5996 5999 6000 Astronomical catalog List of NGC objects 5001–6000

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 [NGC 5523](https://en.wikipedia.org/wiki/NGC_5523) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/NGC_5523?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.