Editing Deep-sky object (section)

==List of deep-sky object types==
There are many astronomical object types that come under the description of ''deep-sky objects''. Since the definition is objects that are not [[Solar System]] objects or individual stars, examples include:<ref>{{cite book|author=W.H. Finlay|title=Concise Catalog of Deep-sky Objects: Astrophysical Information for 500 Galaxies, Clusters and Nebulae|url=https://books.google.com/books?id=JMDiXFE39HQC&pg=PT10|year=2003|publisher=Springer Science & Business Media|isbn=978-1-85233-691-2|page=10}}</ref>

* [[Black hole]]s<ref>{{Britannica|67925|Black hole}}</ref> and [[Active galactic nucleus|active galactic nuclei]]<ref>{{Britannica|1364323|Active glactic nucleus}}</ref>
* [[Nebula]]e
** [[Bright nebula]]e
*** [[Emission nebula]]e
*** [[Reflection nebula]]e
*** [[H II region]]s
*** [[Nebula#Diffuse nebulae|Diffuse ionized gas]]
*** [[Planetary nebula]]e
*** [[Nebula#Supernova remnants|Supernova remnants]]
** [[Dark nebula]]e<ref>{{Britannica|407602|Nebula}}</ref>
* [[Galaxy|Galaxies]]<ref>{{Britannica|223818|Galaxy}}</ref>
* [[Star cluster]]s
** [[Open cluster]]s
** [[Globular cluster]]s<ref>{{Britannica|563485|Star cluster}}</ref>