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...le universe|known]] [[Gravitational binding energy|gravitationally bound]] objects to have arisen thus far in the process of cosmic structure formation.<ref>{ ....eso.org/public/announcements/ann13022/|access-date=2 April 2013|newspaper=ESO}}</ref>]] ...

...are above the [[horizon]] and are visible, and the lower hemisphere, where objects are below the horizon and cannot be seen, since the Earth obstructs views o ...the angle between the object and the observer's local horizon. For visible objects, it is an angle between 0° and 90°.{{efn|Alternatively, [[zenith angle]] ma ...

...001|pp=170-171}} T Leporis is also a Mira variable observed in detail by [[ESO]]'s [[Very Large Telescope]] [[Interferometer]].<ref>Unique Details Of Doub ===Deep-sky objects=== ...

=== Deep-sky objects === [[File:An Active Centre ESO 021-G004.jpg|thumb|left|Spiral galaxy ESO 021-G004.<ref>{{cite web |title=An Active Centre |url=https://www.spacetele ...

...o stars brighter than magnitude 1, and a number of the best-known deep-sky objects, although the [[Milky Way]] does not lie within its borders. ...ive-date=2018-07-02 |url-status=live |work=[[European Southern Observatory|ESO]] |access-date=2 July 2018 }}</ref> ...

...d are almost always found within [[spiral arm]]s. They are generally young objects, up to a few tens of millions of years old, with a few rare exceptions as o ...us=live|archive-url=https://web.archive.org/web/20171201042434/https://www.eso.org/public/unitedkingdom/news/eso0510/|archive-date=2017-12-01}}</ref> ...

| [[ESO 540-030|PGC 2881]] ...d in the vicinity of the Sculptor Group, but are now considered background objects.<ref name=Chemin2006>{{cite journal ...

...ion's borders brighter than or equal to [[apparent magnitude]] 6.5.{{efn|1=Objects of magnitude 6.5 are among the faintest visible to the unaided eye in subur ===Deep-sky objects=== ...

...ot until the early 20th century that conclusive detections of astronomical objects other than the [[Sun]] and [[Moon]] were made in infrared light.{{Citation ...w.eso.org/public/announcements/ann14035/|access-date=10 May 2014|newspaper=ESO Announcement}}</ref>]] ...

{{Short description|Binary system where two planetary-mass objects share an orbital axis external to both}} ...astronomical object|objects]] are [[planets]], or [[planemo|planetary-mass objects]], and whose [[barycenter]] is external to both planetary bodies. ...

===Deep-sky objects=== [[File:Hubble Interacting Galaxy ESO 69-6 (2008-04-24).jpg|right|thumb|[[ESO 69-6]], two merging galaxies with prominent long tails, photographed by the ...

{{Short description|Objects that appear to be close in the sky}} ...isual conjunction between the Moon and the planet Venus, the two brightest objects in the night sky|379x379px]] ...

...aterial is then thought to form [[planet]]s and other [[planetary system]] objects. | journal=[[ESO Messenger]] ...

...verse, including [[kilo-|kilo]]<nowiki/>parsecs (kpc) for the more distant objects within and around the Milky Way, [[Mega-|mega]]<nowiki/>parsecs (Mpc) for m ...pes are not limited by this effect and can accurately measure distances to objects beyond the limit of ground-based observations. Between 1989 and 1993, the ' ...

===Deep-sky objects=== | title=The Gaia-ESO Survey: Stellar content and elemental abundances in the massive cluster NGC ...

...ated 7.2 and 5.7 billion light years away respectively, two of the largest objects in the [[visible universe]]. Phoenix is the [[radiant (meteor shower)|radia ...r9= Cochran, W. D. | date=2013|title=The planet search programme at the ESO CES and HARPS. IV. The search for Jupiter analogues around solar-like stars ...

...December 2007}}</ref> {{as of|2020}}, they are the most powerful magnetic objects detected throughout the universe.<ref name="journal2">Kouveliotou, C.; Dunc ...st Explosions in the Universe Powered by Strongest Magnets |url=http://www.eso.org/public/news/eso1527/ |access-date=9 July 2015}}</ref>]] ...

...the tables below are mostly taken from a [[list of gravitationally rounded objects of the Solar System]] and [[planetary-mass moon]]. All distances from the S |+ Densities of some icy geophysical planets<br />(other [[Kuiper Belt Objects|KBO]] densities are poorly known) ...

| names = LMC, ESO 56- G 115, [[Principal Galaxies Catalogue|PGC]] 17223,<ref name="ned"/> Nub ...gellanic Cloud revealed by VISTA.jpg|thumb|[[European Southern Observatory|ESO]]'s [[VISTA (telescope)|VISTA]] image of the LMC]] ...

...over Publications |location=New York, New York |date=1962 |title=Celestial objects for common telescopes |volume=2 |page=[https://archive.org/details/celestia ...42 stars brighter than or equal to [[apparent magnitude]]&nbsp;6.5.{{efn|1=Objects of magnitude 6.5 are among the faintest visible to the unaided eye in subur ...