# SN 2005bc

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Supernova in the constellation Boötes

SN 2005bc SN 2005bc just over a week after peak brightness Event type Supernova Type Ia[1] Discovered c. 129.3 million years ago (detected 2 April 2005 by Tim Puckett and L. Cox[1]) Constellation Boötes Right ascension 14h 37m 14.78s[1] Declination +38° 27′ 23.1″[1] Epoch J2000.0 Galactic coordinates Long 66.76° Lat 65.17° Distance 129.3 Mly (39.63 Mpc)[2] Redshift 0.0132, 0.0122 Host NGC 5698[1] Progenitor type white dwarf Peak apparent magnitude +16.6[1] Other designations SN 2005bc [edit on Wikidata]

**SN 2005bc** was a [Type Ia supernova](/source/Type_Ia_supernova)[3] occurring in the [barred spiral galaxy](/source/Barred_spiral_galaxy) [NGC 5698](/source/NGC_5698),[1] located in the northern [constellation](/source/Constellation) of [Boötes](/source/Bo%C3%B6tes). SN 2005bc was discovered on 2 April 2005 by LOSS and independently by Tim Puckett and L. Cox.[4] It was positioned at an offset of 4.6[″](/source/Second_of_arc) east and 7.5″ north of the galactic nucleus.[1] The [supernova](/source/Supernova) was at [magnitude](/source/Apparent_magnitude) 16.4 at discovery, and quickly rose to a peak magnitude of around 15.3 (in visible light) just over a week after discovery. It showed an expansion velocity of 12,000 km/s.[3] By mid-May, the supernova had faded to 17th magnitude.

The host galaxy, NGC 5698, along with the supernova lie approximately 129 million [light-years](/source/Light-year) (~40 million [parsecs](/source/Parsec)) from Earth.[2] As the supernova was of Type Ia, its progenitor star was a [compact](/source/Compact_star) [white dwarf](/source/White_dwarf) star that exceeded the [Chandrasekhar limit](/source/Chandrasekhar_limit).

## References

1. ^ [***a***](#cite_ref-Barbon_et_al_2008_1-0) [***b***](#cite_ref-Barbon_et_al_2008_1-1) [***c***](#cite_ref-Barbon_et_al_2008_1-2) [***d***](#cite_ref-Barbon_et_al_2008_1-3) [***e***](#cite_ref-Barbon_et_al_2008_1-4) [***f***](#cite_ref-Barbon_et_al_2008_1-5) [***g***](#cite_ref-Barbon_et_al_2008_1-6) [***h***](#cite_ref-Barbon_et_al_2008_1-7) Barbon, R.; et al. (2008), "Asiago Supernova Catalogue", *CDS/ADC Collection of Electronic Catalogues*, vol. 1, [Bibcode](/source/Bibcode_(identifier)):[2008yCat....1.2024B](https://ui.adsabs.harvard.edu/abs/2008yCat....1.2024B).

1. ^ [***a***](#cite_ref-Tully_et_al_2016_2-0) [***b***](#cite_ref-Tully_et_al_2016_2-1) Tully, R. Brent; et al. (August 2016), "Cosmicflows-3", *The Astronomical Journal*, **152** (2): 21, [arXiv](/source/ArXiv_(identifier)):[1605.01765](https://arxiv.org/abs/1605.01765), [Bibcode](/source/Bibcode_(identifier)):[2016AJ....152...50T](https://ui.adsabs.harvard.edu/abs/2016AJ....152...50T), [doi](/source/Doi_(identifier)):[10.3847/0004-6256/152/2/50](https://doi.org/10.3847%2F0004-6256%2F152%2F2%2F50), [S2CID](/source/S2CID_(identifier)) [250737862](https://api.semanticscholar.org/CorpusID:250737862), 50.

1. ^ [***a***](#cite_ref-Modjaz_et_al_2005_3-0) [***b***](#cite_ref-Modjaz_et_al_2005_3-1) Modjaz, M.; Kirshner, R.; Challis, P.; Nutzman, P. (April 2005), Green, D. W. E. (ed.), "Supernova 2005bc in NGC 5698", *Central Bureau Electronic Telegrams*, **132** (1): 1, [Bibcode](/source/Bibcode_(identifier)):[2005CBET..132....1M](https://ui.adsabs.harvard.edu/abs/2005CBET..132....1M).

1. **[^](#cite_ref-Burket_et_al_2005_4-0)** Burket, J.; et al. (April 2005), Green, D. W. E. (ed.), "Supernovae 2005az, 2005bb, and 2005bc", *IAU Circular*, **8504** (2): 2, [Bibcode](/source/Bibcode_(identifier)):[2005IAUC.8504....2B](https://ui.adsabs.harvard.edu/abs/2005IAUC.8504....2B).

## External links

- [IAUC 8504](http://cbat.eps.harvard.edu/iauc/08500/08504.html#Item2)

v t e Supernovae Classes Type Ia Iax Type Ib and Ic Type II Hypernova Superluminous Pair-instability Calcium-rich Common envelope jets Physics of Carbon detonation Foe/Bethe Near-Earth Phillips relationship Nucleosynthesis p-process r-process γ-process Neutrinos Related Failed Fast blue optical transient Fast radio burst Gamma-ray burst Gravitational wave Kilonova Luminous red nova Micronova Nova Pulsar kick Quark-nova Soft gamma repeater Imposter pulsational pair-instability Symbiotic nova Progenitors Hypergiant yellow Luminous blue variable Supergiant blue red yellow White dwarf Wolf–Rayet star Super-AGB star Population III star Remnants Supernova remnant Pulsar wind nebula Neutron star pulsar magnetar Stellar black hole Compact star electroweak exotic quark Zombie star Local Bubble Superbubble Orion–Eridanus Discovery Guest star History of supernova observation Timeline of white dwarfs, neutron stars, and supernovae Lists Candidates Notable Massive stars Most distant Remnants In fiction Notable Barnard's Loop Cassiopeia A SN 1054 Crab Nebula iPTF14hls SN 1000+0216 Tycho's Kepler's SN 1885A SN 1987A SN 1994D SN 185 SN 1006 SN 2003fg Remnant G1.9+0.3 SN 2007bi SN 2011fe SN 2014J SN Eos SN Refsdal Vela Remnant SN 2006gy ASASSN-15lh SN 2016aps SN 2018cow SN 2022jli SN H0pe Research ASAS-SN Calán/Tololo Survey High-Z Supernova Search Team Katzman Automatic Imaging Telescope Monte Agliale Supernovae and Asteroid Survey Nearby Supernova Factory Sloan Supernova Survey Supernova/Acceleration Probe Supernova Cosmology Project SuperNova Early Warning System Supernova Legacy Survey Texas Supernova Search Category:Supernovae Commons:Supernovae

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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