# IC 831

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Galaxy in the constellation Coma Berenices

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IC 831 Sloan Digital Sky Survey of IC 831 Observation data (J2000 epoch) Constellation Coma Berenices Right ascension 12h 52m 44.10s[1] Declination +26° 28′ 13.8″[1] Redshift 0.02129 Heliocentric radial velocity 6,406 km/s Distance 300 Mly (92 Mpc) Apparent magnitude (V) 17.93 Characteristics Type E Size 60,000 ly Notable features Galaxy host of supernova iPTF14atg Other designations PGC 43708, 2MASX J12524408+2628135, MCG+05-30-113, AGC 221803, CAIRNS J125244.02+262813.6, SDSS J125244.06+262813.4, [DFO95] 113, LEDA 43708

**IC 831** is a type E-S0[1] [elliptical galaxy](/source/Elliptical_galaxy) located 300 million [light-years](/source/Light-year) away from the [Solar System](/source/Solar_System) in the constellation of [Coma Berenices](/source/Coma_Berenices).[2][3] It is estimated to be 60,000 light-years in diameter[2] and was first discovered on 25 February 1892 by [Rudolf Spitaler](/source/Rudolf_Ferdinand_Spitaler), an Austrian astronomer.[4] It is not known whether it has an [active galactic nucleus](/source/Active_galactic_nucleus).

## Supernova

[Type Ia supernova](/source/Type_Ia_supernova), [iPTF14atg](/source/IPTF14atg) was discovered in IC 831 on May 3, 2015, which was similar to [SN 2002es](https://en.wikipedia.org/w/index.php?title=SN_2002es&action=edit&redlink=1) that exploded prior to that, in [UGC 2708](https://en.wikipedia.org/w/index.php?title=UGC_2708&action=edit&redlink=1), a [lenticular galaxy](/source/Lenticular_galaxy).[5][6] The progenitor type was a [white dwarf](/source/White_dwarf), in which when it exploded, some of the shockwaves impacted its companion star.[7] It was discovered by [Intermediate Palomar Transient Factory](/source/Palomar_Transient_Factory) in California.

## References

1. ^ [***a***](#cite_ref-LEDA_1-0) [***b***](#cite_ref-LEDA_1-1) [***c***](#cite_ref-LEDA_1-2) ["HyperLeda -object description"](http://atlas.obs-hp.fr/hyperleda/ledacat.cgi?o=IC%20831). *atlas.obs-hp.fr*. Retrieved 2024-04-22.

1. ^ [***a***](#cite_ref-:0_2-0) [***b***](#cite_ref-:0_2-1) ["Your NED Search Results"](https://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=32050&objname=1&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1). *ned.ipac.caltech.edu*. Retrieved 2024-04-22.

1. **[^](#cite_ref-3)** Ford, Dominic. ["IC831 (Galaxy)"](https://in-the-sky.org//data/object.php?id=IC831). *In-The-Sky.org*. Retrieved 2024-04-22.

1. **[^](#cite_ref-4)** ["Index Catalog Objects: IC 800 - 849"](https://cseligman.com/text/atlas/ic8.htm#ic831). *cseligman.com*. Retrieved 2024-04-22.

1. **[^](#cite_ref-5)** ["Supernova hits star, results shocking"](https://www.spacedaily.com/reports/Supernova_hits_star_results_shocking_999.html). *spacedaily.com*. Retrieved 2024-04-22.

1. **[^](#cite_ref-6)** Kromer, M.; Fremling, C.; Pakmor, R.; Taubenberger, S.; Amanullah, R.; Cenko, S. B.; Fransson, C.; Goobar, A.; Leloudas, G.; Taddia, F.; Roepke, F. K.; Seitenzahl, I. R.; Sim, S. A.; Sollerman, J. (2016-07-11). ["The peculiar Type Ia supernova iPTF14atg: Chandrasekhar-mass explosion or violent merger?"](https://doi.org/10.1093%2Fmnras%2Fstw962). *Monthly Notices of the Royal Astronomical Society*. **459** (4): 4428–4439. [arXiv](/source/ArXiv_(identifier)):[1604.05730](https://arxiv.org/abs/1604.05730). [doi](/source/Doi_(identifier)):[10.1093/mnras/stw962](https://doi.org/10.1093%2Fmnras%2Fstw962). [ISSN](/source/ISSN_(identifier)) [0035-8711](https://search.worldcat.org/issn/0035-8711).

1. **[^](#cite_ref-7)** ["Supernova collides with its companion star"](https://www.sciencedaily.com/releases/2015/05/150520133557.htm). *ScienceDaily*. Retrieved 2024-04-22.

v t e Constellation of Coma Berenices List of stars in Coma Berenices Coma Berenices in Chinese astronomy Stars Bayer α (Diadem) β γ Flamsteed 7 11 12 13 14 16 17 21 23 (Phyllon Kissinou) 24 31 35 36 37 41 Variable FK GP IN LW HR 4668 HD 107146 108863 108874 110067 114762 b 115404 116029 Other 2MASS J12195156+3128497 KELT-6 WASP-56 WISE 1217+1626 Exoplanets HD 108874 b c KELT-6b Star clusters Coma Star Cluster Messier 53 NGC 4147 NGC 5053 Nebulae LoTr 5 Galaxies Messier 64 (Black Eye Galaxy) 85 88 91 98 99 100 NGC 4014 4015 4017 4053 4056 4060 4061 4065 4066 4070 4072 4074 4076 4084 4086 4089 4090 4091 4092 4093 4095 4098 4136 4146 4150 4162 4185 4189 4203 4211 4212 4213 4222 4237 4245 4253 4262 4274 4278 4293 4298 4302 4308 4310 4312 4314 4323 4328 4340 4359 4375 4383 4393 4394 4414 4419 4448 4450 4455 4459 4468 4473 4474 4475 4477 4479 4489 4494 4495 4498 4502 4506 4515 4516 4523 4525 4540 4555 4556 4558 4559 4561 4565 4571 4585 4595 4611 4614 4615 4633 4634 4651 4659 4670 4673 4676 (Mice Galaxies) 4689 4692 4710 4712 4725 4747 4839 4848 4860 4869 4871 4872 4873 4874 4875 4876 4881 4883 4886 4889 4892 4895 4907 4911 4919 4921 4944 5000 5004 5012 5032 5056 5172 Other 3C 275.1 3C 287 Arp 60 Coma Berenices Dragonfly 44 IC 755 (NGC 4019) IC 831 IC 860 IC 3505 IC 3528 IC 4040 IC 4051 IOK-1 IRAS F12032+1707 LEDA 83677 M85-HCC1 Malin 1 PGC 44691 PKS 1155+251 PKS 1222+216 VIRGOHI21 ZwCl 1305.4+2941 BCG Galaxy clusters Abell 1413 Coma I Coma Cluster Coma Supercluster M94 Group NGC 4065 Group NGC 4631 Group Astronomical events GRB 050509B iPTF14atg SN 1940B SN 1979C SN 2005ap SN 2006X SN 2020oi Category

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