Editing Deneb (section)

===Pole star===
Due to the [[Earth|Earth's]] [[axial precession]], Deneb will be an approximate [[pole star]] (7° off of the north celestial pole) at around [[List of future astronomical events#9th and 10th millennia|9800 AD]].<ref>{{cite web |title=Deneb |url=http://stars.astro.illinois.edu/sow/deneb.html |website=[[University of Illinois]] |first=James B. |last=Kaler |date=1998-06-19 |access-date=2018-04-25}}</ref> The north pole of [[Mars]] points to the midpoint of the line connecting Deneb and the star [[Alderamin]].<ref name="Barlow">
{{cite book |last=Barlow |first=N. G. |url=https://archive.org/details/marsintroduction00barl_258 |title=Mars: An introduction to its interior, surface and atmosphere |date=2008 |publisher=[[Cambridge University Press]] |isbn=978-0-521-85226-5 |page=[https://archive.org/details/marsintroduction00barl_258/page/n30 21] |url-access=limited}}</ref>
{| class="wikitable" style="margin: 1em auto 1em auto;"
! width="120" align="center"|Preceded by
! width="160" align="center"|[[Pole Star]]
! width="120" align="center"|Succeeded by
|-
|align="center"|'''[[Alderamin]]'''
|align="center"|8700 AD to 11000 AD
|align="center"|'''[[Delta Cygni]]'''
|}