SXDF-NB1006-2

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

{{Infobox Galaxy

| name = SXDF-NB1006-2

| image =

| caption =

| epoch = J2000

| ra = {{RA|02|18|56.5}}

| dec = {{DEC|-05|19|58.9}}

| z = {{val|7.2120|0.0003}}{{cite journal|title=Detection of an oxygen emission line from a high redshift galaxy in the reionization epoch|url=https://www.eso.org/public/archives/releases/sciencepapers/eso1620/eso1620a.pdf|first1=Akio K.|last1=Inoue|display-authors=etal|journal=Science|volume=352|issue=6293|pages=1559–1562|doi=10.1126/science.aaf0714|arxiv=1606.04989|bibcode=2016Sci...352.1559I|date=June 2016|pmid=27312046 |s2cid=206646433 }}

| h_radial_v =

| dist_ly = 12.9 billion light-years
(light travel distance)
29 billion light-years
(proper distance)

| type =

| mass =

| appmag_v =

| size =

| size_v =

| constellation name = Cetus

| notes =

| names = SKO2012 SXDF-NB1006-2

}}

SXDF-NB1006-2 is a distant galaxy located in the Cetus constellation, with a spectroscopic redshift of z = 7.213 or 12.91 billion light-years away.Thirty Meter Telescope, [http://www.tmt.org/gallery/miscellaneous/sxdf-nb1006-2 TMT - SXDF-NB1006-2] {{webarchive|url=https://web.archive.org/web/20130524151017/http://www.tmt.org/gallery/miscellaneous/sxdf-nb1006-2 |date=2013-05-24 }}, NAOJ (accessed 16 November 2012) It was discovered by the Subaru XMM-Newton Deep Survey Field. The galaxy was claimed to be the most distant galaxy at announcement in June 2012, as the more distant claimants were not confirmed spectroscopically at the time. It exceeded the previous confirmed distance holder, GN-108036, also discovered by the Subaru.SPACE.com, [http://www.space.com/16135-distant-galaxy.html "Newfound Galaxy May Be Most Distant Ever Seen"], 14 June 2012 (accessed 18 December 2012) Oxygen emission lines have been detected in its spectrum.{{Cite journal|doi=10.1126/science.aag0615|url=https://www.science.org/content/article/ancient-galaxy-holds-oldest-oxygen-universe?et_rid=33785738&et_cid=567570|title=Ancient galaxy holds oldest oxygen in universe / Science / AAAS|journal=Science|date=2016-06-16|last1=Perkins|first1=Sid}}