NGC 173

{{Short description|Spiral galaxy in the constellation Cetus}}

{{Infobox galaxy

| name = NGC 173

| image = File:NGC173 - SDSS DR14.jpg

| caption = SDSS image of NGC 173

| epoch = J2000

| ra = {{RA|00|37|12.5}}{{cite web|title=NASA/IPAC Extragalactic Database|work=Results for NGC 0173|url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+173&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|+01|56|32}}

| constellation name = Cetus

| z = 0.014563

| dist_ly =

| type = SA(rs)c

| appmag_v = 13.7

| size_v = 3.2' × 2.6'

| notes =

| names = {{odlist|UGC=369|CGCG=383-043|MCG=+00-02-092|2MASX=J00371247+0156321|IRAS=F00346+0140|PGC=2223}}

}}

NGC 173 is an unbarred spiral galaxy located approximately 3.8 million light-years away in the constellation Cetus.