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This article was nominated for deletion. The discussion was closed on 12 July 2016 with a consensus to merge the content into the article Orders of magnitude (length). If you find that such action has not been taken promptly, please consider assisting in the merger instead of re-nominating the article for deletion. To discuss the merger, please use the destination article's talk page. (July 2016)

Template:Orders of magnitude (length) imagemap astronomical-scale

To help compare different distances this page lists lengths starting at 10 metres (1 gigametre (Gm) or 1 billion metres).

Distances shorter than 10 metres

• 1.4 Gm — Diameter of Sun
• 1.5 Gm — (proposed) Expected orbit from Earth of the James Webb Space Telescope
• 2.19 Gm — Closest approach of Comet Lexell to Earth, happened on 1 July 1770; closest comet approach on record
• 3 Gm — Total length of "wiring" in the human brain.
• 4.2 Gm — Diameter of Algol B
• 5.0 Gm — Closest approach of Comet Halley to Earth, happened on 10 April 837
• 5.0 Gm — (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 — Diameter of Gamma Orionis
• 9.0 Gm — Estimated diameter of the event horizon of Sagittarius A*, the supermassive black hole in the center of the Milky Way galaxy

Distances longer than 10 metres

References

1. Sun Fact Sheet
2. Neuroscience: The Science of the Brain p.44

Template:Associations/Orders of magnitude (length) wide

• Articles to be merged from July 2016
• Orders of magnitude (length)