Editing Apus (section)

===Deep-sky objects===
[[File:Potw1431a.jpg|thumb|[[Globular cluster]] [[IC 4499]] taken by [[Hubble Space Telescope]].<ref>{{cite news|title=IC 4499: A globular cluster's age revisited|url=http://www.spacetelescope.org/images/potw1431a/|access-date=5 August 2014|work=ESA/Hubble Picture of the Week}}</ref>|alt=A spherical shaped group of a multitude of stars]]

The [[Milky Way]] covers much of the constellation's area.<ref name="Inglis04">{{Cite book |last = Inglis |first = Mike |title = Astronomy of the Milky Way: The observer's guide to the southern Milky Way |publisher = Springer |location=New York, New York |date = 2004 |pages = 124–27 |url = https://books.google.com/books?id=1r0qvMjSCGAC&pg=SA3-PA53 |isbn = 978-1-85233-709-4}}</ref> Of the deep-sky objects in Apus, there are two prominent [[globular cluster]]s—[[NGC 6101]] and [[IC 4499]]—and a large faint [[nebula]] that covers several degrees east of Beta and Gamma Apodis.<ref name=hartungs>{{cite book |author1=Malin, David |author2=Frew, David J. | title = Hartung's Astronomical Objects for Southern Telescopes, with an Addendum for Northern Observatories: A Handbook for Amateur Observers |publisher = Melbourne University Publishing |year=1995 |location= Melbourne, Victoria | url=https://books.google.com/books?id=FTsDDQAAQBAJ&pg=PT216 |isbn=978-0-522-87124-1}}</ref> NGC 6101 is a globular cluster of apparent magnitude 9.2 located around 50,000 light-years distant from Earth,<ref name=imaging>{{cite book |title=Imaging the Southern Sky: An Amateur Astronomer's Guide |first1=Stephen |last1=Chadwick |first2=Ian |last2=Cooper |page=240 |isbn=978-1-4614-4750-4 |year=2012|publisher=Springer }}</ref> which is around 160 light-years across. Around 13 billion years old, it contains a high concentration of massive bright stars known as [[blue straggler]]s, thought to be the result of two stars merging.<ref name="O'Meara">{{cite book |last=O'Meara |first= Stephen James |title= Deep Sky Companions: The Caldwell Objects |date=2003 |publisher= Cambridge University Press |location= Cambridge, United Kingdom |isbn= 978-0-521-82796-6 |pages= 409–412}}</ref> IC 4499 is a loose globular cluster in the medium-far [[galactic halo]];<ref name=ferraro>{{cite journal |last1= Ferraro |first1=I. |last2=Ferraro |first2=F.R. |last3=Pecci |first3=F. Fusi |last4=Corsi |first4 = C.E. |last5=Buonanno |first5 = R. |date= August 1995 |title= Young globular clusters in the Milky Way: IC 4499 |journal= [[Monthly Notices of the Royal Astronomical Society]] |volume=275 |issue=4 |pages=1057–1076 |bibcode = 1995MNRAS.275.1057F |doi= 10.1093/mnras/275.4.1057|doi-access=free }}</ref> its apparent magnitude is 10.6.<ref name=seds>{{cite web |url = http://spider.seds.org/ngc/ngc.cgi?I4499 |title = IC 4499 |publisher = Students for the Exploration and Development of Space |access-date = 22 April 2012 |last = Frommert |first = Hartmut}}</ref>

The galaxies in the constellation are faint.<ref name=hartungs/> IC 4633 is a very faint spiral galaxy surrounded by a vast amount of Milky Way line-of-sight [[integrated flux nebula]]e—large faint clouds thought to be lit by large numbers of stars.<ref name=imaging/>