Do all planets have a tilted axis as they orbit their sun? nt

[raccoon]

[BOSSHOG]

1. The earth does not revolve around the sun

Its the other way around. Dont you listen to your local "conservatives?"

[ChairmanAgnostic]

2. our good flat earth

is only 6,017 yrs old. Tis but a crystal ball upon which his wholyness places the burning ball.

[Lex1775]

3. Not all of them.

Earth's axial tilt or obliquity is approximately 23 degrees. Mercury is 0 degrees.

Check out this site for all the planets in the solar system:

http://nssdc.gsfc.nasa.gov/planetary/planetfact.html

[TechBear_Seattle]

4. Generally yes, to some degree

Wikipedia is your friend. :hi:

See: Axial Tilt. From the article:

Object Axial tilt (°)
Mercury ~0.01
Venus 177.36
Earth 23.439 281
Moon 1.5424
Mars 25.19
Ceres ~4
Pallas ~60
Jupiter 3.13
Saturn 26.73
Uranus 97.77
Neptune 28.32
Pluto 119.61
Eris unknown

Yes, Venus and Pluto are effectively spinning upside down, and Uranus is on its side slightly head-down. Most planets rotate counterclockwise with regards to their orbit around the Sun; Venus, Pluto and Uranus rotate clockwise.

[trotsky]

5. Question

How the heck did they measure Pluto's tilt? Even the Hubble can't get more than a fuzzy picture of it.

[TechBear_Seattle]

6. Occultations with Charon

Pluto is part of a double-planet system with Charon (the barycenter of gravity is above the surfaces of both planets.) By taking many photos of Charon passing across Pluto and comparing reflectivity from Pluto, astronomers were able to determine the direction of spin as clockwise. With enough photos, they were also able to determine both the axial tilt and the rotational speed (6 days 9 hours 17 minutes 38.0547 seconds), and make the most accurate maps we currently have of Pluto's surface.

Edited for grammar and punctuation.

[trotsky]

7. That's amazing.

Science rocks.

[Orsino]

8. Most of them, probably.

And even with a large moon like ours, axial tilt will vary.