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{{Use dmy dates|date=June 2017}} | discovered=30 April 2005 ...

{{Short description|Elliptical galaxy in the constellation Cetus}} | access-date=2017-05-16 }}</ref> ...

| discovered = 18 July 1999 | aphelion = 39.013 [[Astronomical unit|AU]] ...

...body's path. It is usually given in days or years. The term is mostly used in the discovery and tracking of [[asteroids]] and [[comets]]. Arc length has ...to determine if the object was in orbit around the Earth, or orbiting out in the [[asteroid belt]]. With a 1-day observation arc, {{mpl|2004 PR|107}} wa ...

| discovered = 17 September 2010 | epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5) ...

{{Short description|Triplet of galaxies in the constellation Virgo}} ...54}}<ref name=simbad2>{{cite simbad|title=NGC 5679A|access-date=15 January 2017}}</ref> ...

...com/technology/archive/2011/06/early-quasar-is-brightest-object-ever-found-in-the-universe/241294/|access-date=30 June 2011|quote=ULAS J1120+0641 took th ..., with shorter wavelength and higher energy than visible light. The change in energy and wavelength of the light is due to the [[expanding universe]], wh ...

| discovered = 5 April 2000 | epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5) ...

| perihelion = 3.3639&nbsp;[[Astronomical unit|AU]] ...a close approach to Jupiter. In the 43 years since its discovery only two objects with higher eccentricities have been identified, [[1I/ʻOumuamua]] (1.2) and ...

| discovered = 6 July 2017 ...existing models of planet formation|website=www.sphere.osug.fr|access-date=2017-07-06}}</ref> ...

{{Short description|Variable star in the constellation Orion}} ...msu.su/groups/cluster/gcvs/gcvs/iii/iii.dat |date=2017-06-20 }}, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line December 8, 2008.</ref> ...

{{Short description|Carbon star in the constellation Volans}} ...pparent magnitude]] of around 8.7 at its maxima, making it readily visible in amateur telescopes but not to the [[naked eye]]. At its minimum brightness, ...

...|title=A large arc in the gravitational lens system 0957 + 561|journal=The Astronomical Journal|volume=105|year=1993|pages=816|issn=0004-6256|doi=10.1086/116474|bi ...thumb|A light source passes behind a gravitational lens (point mass placed in the center of the image). The aqua circle is a source as it would be seen i ...

| discovered = 4 October 2012 | epoch = 1 October 2017 ([[Julian day|JD]]&nbsp;2458027.5) ...

| discovered = 27 April 2015 ...f name="PlanetarySociety"/> Observations leading to its discovery occurred in April 2015, using the [[Hubble Space Telescope]]'s [[Wide Field Camera 3]], ...

...asurement indicates the log₁₀ of the relative abundance of iron in the measured star to that of the Sun.</ref> '''Kepler-46''', previously designated '''KOI-872''', is a [[star]] located in the constellation [[Lyra]]. Observed since 2009 by the [[Kepler (spacecraft ...

{{Short description|Small temporary satellite of Earth that impacted in 2015}} | discovered = {{Ubl ...

| discovered = March 3, 2014 (candidate)<br>December 3, 2017 (confirmed)<ref name=Garai2018/> ...ght into the composition and formation of exoplanets.<ref name=Booth2022/> In the case of KOI-2700b, the tail most likely consists of [[fayalite]] (Fe<su ...

| discovered = 3 August 1998 | epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5) ...

| caption = {{mp|2020 CD|3}} imaged in colour by [[Gemini North]] | discovered = 15 February 2020 ...