NGC 542

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

{{Infobox galaxy

| name = NGC 536

| image = 250px

| caption = NGC 542 (left) in HCG 10

| epoch = J2000

| constellation name = Andromeda

| ra = {{RA|01|26|30.825}}

| dec = {{DEC|+34|40|31.72}}

| z = 0.015531{{cite simbad|title=NGC 536|access-date=2020-03-30}}

| h_radial_v = 4862 km/s

| dist_ly =

| group_cluster =

| type = Scd

| size =

| appmag_v =

| appmag_b = 15.4

| absmag_v =

| notes =

| names = {{odlist|MCG=+06-04-022|PGC=5360}}

}}

NGC 542 is a spiral galaxy in the constellation Andromeda, which is approximately 215 million light years from the Milky Way. Together with the galaxies NGC 529, NGC 531, and NGC 536, it forms the Hickson Compact Group 10, abbreviated HCG 10. It was discovered by Irish astronomer R.J. Mitchell in 1885.{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+542&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|title=Your NED Search Results|website=ned.ipac.caltech.edu|access-date=2020-03-25}}{{Cite web|url=http://spider.seds.org/ngc/revngcic.cgi?NGC542|title=Revised NGC Data for NGC 542|website=spider.seds.org|access-date=2020-03-25}}{{Cite web|url=https://in-the-sky.org/data/object.php?id=612|title=The galaxy NGC 542 - In-The-Sky.org|last=Ford|first=Dominic|website=in-the-sky.org|language=en|access-date=2020-03-25}}