NGC 171

{{Short description|Barred spiral galaxy in the constellation Cetus}}

{{Infobox galaxy

| name = NGC 171

| image = NGC 0171 SDSS.jpg

| upright = 1.35

| alt = NGC 171

| caption = NGC 171 as seen on SDSS

| epoch = J2000

| ra = {{RA|00|37|21.5}}{{cite web

| title=NASA/IPAC Extragalactic Database

| work=Results for NGC 0171

| url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+171&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES

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

| dec = {{DEC|-19|56|03}}

| constellation name = Cetus

| z = 0.013043

| dist_ly =

| type = SBb{{cite simbad|title=NGC 171|access-date=2016-12-31}}

| appmag_v = 12.90

| size_v = 2.1' × 1.9'

| notes =

| names = ESO 540- G 006, MCG -03-02-024, 2MASX J00372152-1956032, 2MASXi J0037129-195609, IRAS 00348-2012, IRAS F00348-2012, ESO-LV 5400060, 6dF J0037125-195603, PGC 2232.

}}

NGC 171 is a barred spiral galaxy with an apparent magnitude of 12, located around 200 million light-years away in the constellation Cetus. The galaxy has two main medium-wound arms, with a few minor arms, and a fairly bright nucleus and bulge. It was discovered on 20 October 1784 by William Herschel.{{Cite web|url=http://cseligman.com/text/atlas/ngc1a.htm#171|title=New General Catalog Objects: NGC 150 - 199|website=cseligman.com|language=en-US|access-date=2018-02-08}} It is also known as NGC 175.