Z8 GND 5296

{{Short description|Dwarf galaxy}}

{{DISPLAYTITLE:z8_GND_5296}}

{{Infobox galaxy

| name = z8_GND_5296

| image = Z8 GND 5296.jpg

| caption = z8_GND_5296 image from the NASA/ESA Hubble Space Telescope in 2013

| epoch = J2000

| constellation name = Ursa Major

| ra = {{RA|12|36|37.892}}

| dec = {{DEC|+62|18|08.54}}

| z = {{val|7.5078|0.0004}}

| h_radial_v = {{val|291622|120|ul=km/s}}

| gal_v =

| dist_ly = {{nowrap| {{convert|13.1|e9ly|e9pc|abbr=unit|lk=on}} }}
(light travel distance)
≈{{convert|30|e9ly|e9pc|abbr=unit}}
{{nowrap|(present comoving distance)}}

| type = Dwarf

| mass = {{val|1.0|0.2|0.1|e=9}}

| size =

| stars =

| appmag_v = 25.6 (F160W)

| appmag_b =

| absmag_v =

| names = {{nowrap|FIGS GN1 1292}}, {{nowrap|J123637.89+621808.5}}, {{nowrap|z7 GND 42912}}

| references = {{cite journal |title=A galaxy rapidly forming stars 700 million years after the Big Bang at redshift 7.51 |journal=Nature |first1=S. L. |last1=Finkelstein |first2=C. |last2=Papovich |first3=M. |last3=Dickinson |first4=M. |last4=Song |first5=V. |last5=Tilvi |first6=A. M. |last6=Koekemoer |first7=K. D. |last7=Finkelstein |first8=B. |last8=Mobasher |first9=H. C. |last9=Ferguson |first10=M. |last10=Giavalisco |first11=N. |last11=Reddy |first12=M. L. N. |last12=Ashby |first13=A. |last13=Dekel |first14=G. G. |last14=Fazio |first15=A. |last15=Fontana |first16=N. A. |last16=Grogin |first17=J.-S. |last17=Huang |first18=D. |last18=Kocevski |first19=M. |last19=Rafelski |first20=B. J. |last20=Weiner |first21=S. P. |last21=Willner |display-authors=5 |volume=502 |issue=7472 |pages=524–527 |year=2013 |arxiv=1310.6031 |doi=10.1038/nature12657|bibcode = 2013Natur.502..524F |pmid=24153304|s2cid=4448085 }}{{cite simbad |title=NAME FIGS GN1 1292 |access-date=6 October 2016}}

}}

z8_GND_5296 is a dwarf galaxy{{cite news |url=https://www.washingtonpost.com/national/health-science/newly-detected-galaxy-is-the-most-distant-ever/2013/10/23/415ac854-3a78-11e3-b7ba-503fb5822c3e_story.html |title=Newly identified galaxy is the most distant ever confirmed |newspaper=The Washington Post |first=Meeri |last=Kim |date=23 October 2013 |access-date=22 October 2014}} discovered in October 2013 which has the highest redshift that has been confirmed through the Lyman-alpha emission line of hydrogen, placing it among the oldest and most distant known galaxies at approximately {{convert|13.1|e9ly|Gpc|}} from Earth.{{cite news |url=http://www.readthehorn.com/news/research/85364/farthest_galaxy_ever_seen_discovered_by_ut_researchers |title=Farthest galaxy ever seen discovered by UT researchers |work=The Horn |first=Mihir |last=Shukla |date=26 October 2013 |access-date=30 October 2013 |archive-date=30 October 2013 |archive-url=https://web.archive.org/web/20131030074352/http://www.readthehorn.com/news/research/85364/farthest_galaxy_ever_seen_discovered_by_ut_researchers |url-status=dead }}{{cite news |url=http://www.universetoday.com/105694/taking-measure-a-new-most-distant-galaxy/ |title=Taking Measure: A 'New' Most Distant Galaxy |work=Universe Today |first=Matthew |last=Francis |date=23 October 2013 |access-date=30 October 2013}} It is "seen as it was at a time just 700 million years after the Big Bang [...] when the universe was only about 5 percent of its current age of 13.8 billion years".{{cite press release |url=http://www.utexas.edu/news/2013/10/23/texas-astronomer-discovers-most-distant-known-galaxy/ |title=Texas Astronomer Discovers Most Distant Known Galaxy |publisher=University of Texas at Austin |first=Rebecca |last=Johnson |date=23 October 2013}} The galaxy is at a redshift of 7.51, and it is a neighbour to what was announced then as the second-most distant galaxy with a redshift of 7.2. The galaxy in its observable timeframe was producing stars at a phenomenal rate, equivalent in mass to about 330 Suns per year.

The light reaching Earth from z8_GND_5296 shows its position over 13 billion years ago, having traveled a distance of more than 13 billion light-years. Due to the expansion of the universe, this position is now at about {{convert|30|e9ly|Gpc}} (comoving distance) from Earth.{{cite news |url=https://www.bbc.co.uk/news/science-environment-24637890 |title=New galaxy 'most distant' yet discovered |work=BBC News |first=Rebecca |last=Morelle |author-link=Rebecca Morelle |date=23 October 2013 |access-date=24 October 2013}}