NGC 342

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

{{Use mdy dates|date=November 2016}}

{{Infobox galaxy

| name = NGC 342

| image = NGC342 - SDSS DR14.jpg

| caption = SDSS image of NGC 342

| epoch = J2000

| ra = {{RA|01|00|49.8}}{{cite web

| title=NASA/IPAC Extragalactic Database

| work=Results for NGC 0342

| url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+342&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=September 2, 2016}}

| dec = {{DEC|-06|46|21}}

| constellation name = Cetus

| z = 0.019403

| h_radial_v = 5,817 km/s

| type = S0

| appmag_v = 15.41

| size_v = 0.6' × 0.3'

| notes =

| names = MCG -01-03-058, 2MASX J01004985-0646207, 2MASXi J0100498-064620, 6dF J0100499-064621, PGC 3631.

}}

NGC 342 is a lenticular galaxy in the constellation Cetus. It was discovered on September 27, 1864 by Albert Marth. It was described by Dreyer as "very faint, very small."{{cite web|title=New General Catalog Objects: NGC 300 - 349|url=http://cseligman.com/text/atlas/ngc3.htm#342|publisher=Cseligman|access-date=November 6, 2016}}