Titius bode law
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Titius-Bode Law -. Mercury 0.4 AU’s Venus + 0.3 (0.7) Earth + 0.6(1.0) Mars+ 1.2(1.6) A. B.+ 2.4(2.8) Jupiter+ 4.8(5.2) Saturn+ 9.6(10.0) Uranus+19.2(19.6) (Actually 19.2) Neptune+38.4(38.8) (Actually 30) Plutois at 39.5.

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Titius bode law

Titius-Bode Law -

  • Mercury 0.4 AU’s

  • Venus + 0.3 (0.7)

  • Earth + 0.6(1.0)

  • Mars+ 1.2(1.6)

  • A. B.+ 2.4(2.8)

  • Jupiter+ 4.8(5.2)

  • Saturn+ 9.6(10.0)

  • Uranus+19.2(19.6) (Actually 19.2)

  • Neptune+38.4(38.8) (Actually 30)

  • Plutois at 39.5


Titius bode law

The Titius-Bode law works very well for the first six planets and the asteroid belt, but not very well for the planets after that. The Titius-Bode law is probably just a curious coincidence.


Titius bode law

Mercury’s orbit is always within 0.5 AU of the Sun. It is always visually close to the Sun; therefore, it is only observed when low on the horizon (or during a solar eclipse).


It is visible for at most 2 hours on any given night

It is visible for at most2 hours on any given night.


Titius bode law

Mercury was originally thought to be two planets. The Greeks called it Apollo when seen in the morning and Hermes when seen in the evening.


Titius bode law

Mercury’s surface is fairly reflective. Albedo - the fraction of incident sunlight an object reflects into space.


Titius bode law

Mercury’s albedo is only about 0.1, similar to Earth’s Moon.However, Mercury’s nearness to the Sun makes it one of the brightest objects in the night sky.


The best pictures of mercury are taken by large telescopes during the day

The best pictures of Mercury are taken by large telescopes during the day.


Titius bode law

Mercury’s orbital period is 88 Earth days.As viewed from the Earth, Mercury can pass over the surface of the Sun.


This is called a transit a smaller darker object passes across a larger brighter one

This is called a transit (a smaller, darker object passes across a larger, brighter one).


Titius bode law

Transits of the Sun by Mercury are fairly rare. There are only twelve or so per century, always occurring in Nov. or May.


Titius bode law

Radius - 2450 km0.38 Earth radiiMass - 3.3 x 1026 g0.055 Earth’sDensity - 5.4 g/cm3slightly less than Earth’s


Titius bode law

Mercury is now the smallest planet.(It is larger than Pluto, so it was second smallest before Pluto’s demotion to dwarf planet.)


Mercury s rotational period is 59 days which is 2 3 of a mercury year

Mercury’s rotational period is 59 days, which is 2/3 of a Mercury year.


Mercury goes through three rotations for every two revolutions

Mercury goes through three rotations for every two revolutions.


Titius bode law

There is a reason for this 2/3 ratio. Part of the reason is Mercury’s very eccentric orbit (very elliptic).


This causes the orbital speed to vary greatly throughout the orbit

This causes the orbital speed to vary greatly throughout the orbit.


The orbital and rotational periods are synchronous at perihelion closest approach to the sun

The orbital and rotational periods are synchronous at perihelion (closest approach to the Sun).


How would this appear from mercury

How would this appear from Mercury?


Titius bode law

The Sun would move from east to west, except near perihelion, where rotation is slightly slower than orbital speed.


At this time the sun would appear to stop and go backward before it resumed its east to west motion

At this time the Sun would appear to stop and go backward before it resumed its east to west motion.


Mercury s equator is exactly in the orbital plane so mercury has no axial tilt

Mercury’s equator is exactly in the orbital plane, so Mercury has no axial tilt.


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