Bode's law

American  

[bohdz law] / ˈboʊdz ˈlɔ /

noun

Astronomy.

1. a numerical scheme that gives the approximate distance from the sun of the seven planets closest to the sun (Mercury through Uranus) but fails for Neptune and Pluto, which are further away.

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Bode's law British  

/ bəʊdz /

noun

1. astronomy an empirical rule relating the distances of the planets from the sun, based on the numerical sequence 0, 3, 6, 12, 24,…. Adding 4 to each number and dividing by 10 gives the sequence 0.4, 0.7, 1, 1.6, 2.8,…, which is a reasonable representation of distances in astronomical units for most planets if the minor planets are counted as a single entity at 2.8

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Etymology

Origin of Bode's law

First recorded in 1825–35; after Johann E. Bode (1747–1826), German astronomer, though probably first formulated by Johann D. Titius (Tietz), German astronomer (1729–96)

Example Sentences

The mean distance from the sun was found to be 2.767, agreeing with the 2.8 given by Bode’s law.

From History of Astronomy by Forbes, George

Bode's law of planetary distances is no law at all, but a study of coincidences.

From Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work by Warren, Henry White

With exception of Neptune, the agreement between Bode's law and the true distances is very striking, but most remarkable is the presence in the series of a number, 2.8, with no planet corresponding to it.

From A Text-Book of Astronomy by Comstock, George C.

Still, Bode's law has a comprehensive approximate reality in the Solar System, sufficient to make it a strong recommendation of any hypothesis of the origin of the system, that it shall account for this law.

From The Plurality of Worlds by Hitchcock, Edward

In 1844, assuming a circular orbit, and a mean distance agreeing with Bode’s law, he obtained a first approximation to the position of the supposed planet.

From History of Astronomy by Forbes, George