NGC 233

{{short description|Galaxy in the constellation Andromeda}}

{{Infobox galaxy

| name = NGC 233

| image = File:NGC233 - SDSS DR14.jpg

| alt = NGC 233

| caption = SDSS image of NGC 233

| epoch = J2000

| ra = {{RA|00|43|36.5}}{{cite web

| title=NASA/IPAC Extragalactic Database

| work=Results for NGC 0233

| url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+233

| access-date=2016-09-02}}

| dec = {{DEC|+30|35|13}}

| constellation name = Andromeda

| z = 0.018086

| dist_ly =

| type = E:

| appmag_v = 13.44

| size_v = 1.7' × 1.5'

| notes =

| names = UGC 00464, CGCG 500-078, MCG +05-02-041, 2MASX J00433654+3035132, 2MASXi J0043365+303513, PGC 2604.

}}

NGC 233 is an elliptical galaxy located in the constellation Andromeda. It was discovered on September 11, 1784 by William Herschel.{{cite web|title=New General Catalog Objects: NGC 200 - 249|url=http://cseligman.com/text/atlas/ngc2.htm#233|publisher=Cseligman|access-date=September 15, 2016}}

One supernova has been observed in NGC 233: SN{{nbsp}}2021abzd (type{{nbsp}}Ia-91bg-like, mag. 17.3).{{cite web | website=Transient Name Server | title=SN{{nbsp}}2021abzd | url=https://www.wis-tns.org/object/2021abzd | publisher = IAU | access-date=4 September 2024}}