The axial tilt of mercury is around 2.11 degrees, not very much. So yes, the axis of rotation is almost exactly perpendicular to the elliptical plane.
Mercury
The tilt of Mercury is very small, about 0.034 degrees, making it almost upright compared to its orbit around the Sun. This means that Mercury's axis is nearly perpendicular to its orbital plane, resulting in minimal seasons on the planet.
Answer this question… Uranus's axis of rotation is tilted at about 98 degrees from the perpendicular to its orbital plane. This means its axis is roughly in the plane of.
23.5°
An axis is an imaginary line perpendicular to the plane of rotation and centered on the center of mass of the (solar) system.
It is very close to perpendicular to its orbital plane.
It is very close to perpendicular to its plane of rotation.
The transverse plane is perpendicular to the longitudinal axis.
Mercury
No. Seasons are caused by the tilt of the axis. Mercury's axis is perpendicular to the Sun so there are no seasons.
In physics, the perpendicular axis theorem (or plane figure theorem) can be used to determine the moment of inertia of a rigid object that lies entirely within a plane, about an axis perpendicular to the plane, given the moments of inertia of the object about two perpendicular axes lying within the plane. The axes must all pass through a single point in the plane.Define perpendicular axes , , and (which meet at origin ) so that the body lies in the plane, and the axis is perpendicular to the plane of the body. Let Ix, Iy and Iz be moments of inertia about axis x, y, z respectively, the perpendicular axis theorem states that[1]This rule can be applied with the parallel axis theorem and the stretch rule to find moments of inertia for a variety of shapes.If a planar object (or prism, by the stretch rule) has rotational symmetry such that and are equal, then the perpendicular axes theorem provides the useful relationship:DerivationWorking in Cartesian co-ordinates, the moment of inertia of the planar body about the axis is given by[2]: On the plane, , so these two terms are the moments of inertia about the and axes respectively, giving the perpendicular axis theorem.
The tilt of Mercury is very small, about 0.034 degrees, making it almost upright compared to its orbit around the Sun. This means that Mercury's axis is nearly perpendicular to its orbital plane, resulting in minimal seasons on the planet.
As far as has been possible to observe so far, Mercury's tilt is listed as "probably zero".In other words, its equator is thought to lie in its orbital plane, and its axis of rotation is thought to be perpendicular to its orbital plane.
In physics, the perpendicular axis theorem (or plane figure theorem) can be used to determine the moment of inertia of a rigid object that lies entirely within a plane, about an axis perpendicular to the plane, given the moments of inertia of the object about two perpendicular axes lying within the plane. The axes must all pass through a single point in the plane.Define perpendicular axes , , and (which meet at origin ) so that the body lies in the plane, and the axis is perpendicular to the plane of the body. Let Ix, Iy and Iz be moments of inertia about axis x, y, z respectively, the perpendicular axis theorem states that[1]This rule can be applied with the parallel axis theorem and the stretch rule to find moments of inertia for a variety of shapes.If a planar object (or prism, by the stretch rule) has rotational symmetry such that and are equal, then the perpendicular axes theorem provides the useful relationship:
If the earth's axis were perpendicular to the plane of its orbit, the earth would still have winter and summer as the two main seasons. The two seasons would beÊoccurringÊdaily since the earth would still be rotating but on a perpendicular plane to its orbit.Ê
The y-axis is the vertical line that is perpendicular to the horizontal line of the x-axis on the Cartesian plane
Imagine a line perpendicular to the plane of Earth's orbit. The tilt of Earth's axis - about 23.5 degrees - is expressed as compared with this perpendicular, so the angle between the axis and the plane would actually be (90 minus 23.5) degrees.