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Orders of magnitude (length)#1 gigametre

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+#REDIRECT [[Orders of magnitude (length)#1 gigametre]]
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-{{Article for deletion/dated|page=1 metre|timestamp=20130113000112|year=2013|month=January|day=13|substed=yes|help=off}}
-<!-- For administrator use only: {{Old AfD multi|page=1 metre|date=13 January 2013|result='''keep'''}} -->
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-{{Orders of magnitude (length) imagemap astronomical-scale}}
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-[[Image:1e9m comparison.png|thumb|350px|right|Upper part: [[Gamma Orionis]], [[Algol|Algol B]], the [[Sun]] (centre), underneath their darker mirror images <span style="white-space:nowrap;">(artist's interpretation),</span> and <span style="white-space:nowrap;">[[1 E8 m|other objects]],</span> to scale.]]
+{{R to section}}
-To help compare different distances this page lists lengths starting at 10<sup>9</sup> [[metre]]s (1 [[gigametre]] (Gm) or 1 million [[kilometre]]s).
+}}
-'''[[1 E+8 m|Distances shorter than 10<sup>9</sup> metres]]'''
-* 1.4 Gm &mdash; Diameter of [[Sun]]<ref>[http://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html Sun Fact Sheet]</ref>
-* 1.5 Gm &mdash; ''(proposed) Expected orbit from Earth of the [[James Webb Space Telescope]]''
-* 2.19 Gm &mdash; Closest approach of [[Comet Lexell]] to [[Earth]], happened on 1 July 1770; closest [[comet]] approach on record
-* 3 Gm &mdash; Total length of "wiring" in the human brain.<ref>Neuroscience: The Science of the Brain [http://www.braincampaign.org/Pub/Pub_Main_Display.asp?LC_Docs_ID=2769] p.44</ref>
-* 4.2 Gm &mdash; Diameter of [[Algol|Algol B]]
-* 5.0 Gm &mdash; Closest approach of [[Comet Halley]] to Earth, happened on 10 April 837
-* ''5.0 Gm &mdash; (proposed) Size of the arms of the giant triangle shaped Michelson interferometer of the [[Laser Interferometer Space Antenna]] (LISA) planned to start observations in or around 2015.''
-* 7.9 Gm &mdash; Diameter of [[Gamma Orionis]]
-* 9.0 Gm &mdash; Estimated diameter of the [[event horizon]] of [[Sagittarius A*]], the [[supermassive black hole]] in the center of the [[Milky Way]] galaxy
-'''[[1 E+10 m|Distances longer than 10<sup>10</sup> metres]]'''
-==References==
-{{Reflist}}
-{{Associations/Orders of magnitude (length) wide}}
-[[Category:Orders of magnitude (length)|+09]]
-[[es:Anexo:1 E9 m]]
-[[eo:1 E9 m]]
-[[fr:1 E9 m]]
-[[it:1 E9 m]]
-[[hu:1 E9 m]]
-[[ja:1 E9 m]]
-[[sl:1 E9 m]]
-[[sh:1 E9 m]]