Halley Tn̂g-bóe-chhiⁿ
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Halley
Halley是
參考 [修改]
- ↑ D. W. Graham and E. Hintz (July 2010). "An Ancient Greek Sighting of Halley's Comet?". Journal of Cosmology. 18 September 2008 khòaⁿ--ê.
- ↑ O。 Ajiki and R。 Baalke. "Orbit Diagram (Java) of 1P/Halley". Jet Propulsion Laboratory Solar System Dynamics. 1 August 2008 khòaⁿ--ê.
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