2017: Simone Marchi, for his contribution to the field of «Physics and dynamics of
the inner planets of the solar system and their satellites».
Lorenzo Iorio, «Dynamical Determination of the Mass of the Kuiper Belt from Motions of
the Inner Planets of the Solar System,» Monthly Notices of the Royal Astronomical Society, Vol.
Not exact matches
The researchers found that relatively cool accretion discs around young stars, whose
inner edges can be several times the size
of the Sun, show the same behaviour as the hot, violent accretion discs around
planet - sized white dwarfs, city - sized black holes and supermassive black holes as large as the entire
Solar system, supporting the universality
of accretion physics.
THE shattered remnants
of a dwarf
planet may have bombarded the
inner planets in the early
solar system, suggests a new analysis
of craters on the moon.
Six
planets orbit a star roughly the size
of the sun, and like our
solar system, the outer
planets are gas giants while the
inner ones seem to be denser.
The structure
of the heliosphere plays a big role in how particles from interstellar space — called cosmic rays — reach the
inner solar system, where Earth and the other
planets are.
That could be crucial to learning much more: Jupiter was likely the first
planet to form around the sun, so its
inner workings — particularly the nature
of its core and how heat trickles out from the
planet's abyssal depths — may offer hints about how other
planets came to be, both in our
solar system and around other stars.
Dawn's observations are transforming our understanding
of how Earth and the other
inner planets — Mars, Mercury, and Venus — emerged from the
solar system's primordial chaos.
Another part
of his proposal is to build a scale model
of the
solar system within Manhattan, with a model
of the sun in Battery Park,
inner planets throughout downtown and midtown, and outer
planets in the Bronx.
«It's been postulated that close encounters by other stars could disturb this cloud and throw a lot
of comets into the
inner solar system, with possible collisional results with the
inner planets and possible biological consequences.»
These icy missiles likely bombarded the
inner solar system billions
of years ago, delivering water to the
inner planets.
Comet Wild - 2 used to orbit beyond the orbit
of Jupiter, but it made an unusually close approach to the giant
planet in September 1974 and got catapulted into the
inner solar system.
As Jupiter retreated from its closest approach to the sun (about the distance
of Mars's orbit today), it left behind the mostly rocky remnants that later coalesced into our
solar system's
inner planets, including Earth.
«If forming tightly packed
systems of inner planets is easy, there's no reason it shouldn't happen in our
solar system,» says Kathryn Volk at the University
of British Columbia, Canada.
The «late heavy bombardment»
of asteroids that clobbered Earth and the rest
of the
inner solar system for 20 million to 100 million years, ending 3.85 billion years ago, is generally regarded as one
of the most hostile eras in our
planet's history.
Over a simulated interval
of 200 million years, the
inner planet slowly migrated even farther inward to become a «warm Jupiter» orbiting its parent star at about the same distance Mercury does in our
solar system, the researchers report online today in Science.
GREEDY GIANT Jupiter, seen in this Hubble Space Telescope image, might have once robbed the
inner solar system of planet - building material
Simulating the assembly
of the
solar system around 4.56 billion years ago, researchers propose that the Red
Planet didn't form in the
inner solar system alongside the other terrestrial
planets as previously thought.
However, TRAPPIST - 1's small size and low temperature mean that the energy input to its
planets is similar to that received by the
inner planets in our
Solar System; TRAPPIST - 1c, d and f receive similar amounts
of energy to Venus, Earth and Mars, respectively.
With either scenario, water must accrete to the
inner planets within the first ca. 10 million years
of solar system formation.
The GRAIL data also suggest that astronomers should not use measurements
of the basins on the nearside
of the moon to draw conclusions about the rate at which craters struck the
planets of the
inner solar system 4 billion years ago, the researchers report November 8 in Science.
A rain
of asteroids hurled into the
inner solar system by a wandering Jupiter could have swept up a family
of large rocky
planets huddled up close to the sun, researchers report online March 23 in the Proceedings
of the National Academy
of Sciences.
Pasadena, CA — Observations
of Ceres have detected recent variations in its surface, revealing that the only dwarf
planet in the
inner solar system is a dynamic body that continues to evolve and change.
Kepler - 186 and the
Solar System: The diagram compares the planets of the inner solar system to Kepler - 186, a five - planet system about 500 light - years from Earth in the constellation Cy
Solar System: The diagram compares the planets of the inner solar system to Kepler - 186, a five - planet system about 500 light - years from Earth in the constellation C
System: The diagram compares the
planets of the
inner solar system to Kepler - 186, a five - planet system about 500 light - years from Earth in the constellation Cy
solar system to Kepler - 186, a five - planet system about 500 light - years from Earth in the constellation C
system to Kepler - 186, a five -
planet system about 500 light - years from Earth in the constellation C
system about 500 light - years from Earth in the constellation Cygnus.
Compared with meteorites, Earth and the other
inner planets contain relatively low amounts
of water and volatile elements, which were not abundant in the
inner solar system during
planet formation.
Detecting water on Ceres supports models
of the
solar system in which giant
planets, such as Jupiter, migrated to their current positions, mixing material from the outer and
inner regions
of the
solar system.
Assuming that the spectroscopic companion B does not preclude a stable
inner planetary orbit, the distance from Star A where an Earth - type
planet would be «comfortable» with liquid water is centered around only 0.457 AU — between the orbital distances
of Mercury and Venus in the
Solar System.
The orbit
of an Earth - like
planet (with liquid water) around 79 Ceti may be centered around 1.41 AUs — within the
inner reaches
of the Main Asteroid Belt in the
Solar System — with an orbital period
of 611 days (or 1.67 years).
Ok, I did a preliminary check on the Extrasolar
Planet Encyclopedia; I converted all stellar apparent magnitudes to absolute magnitudes, those to luminosity (*
solar), and calculated the
inner and outer boundaries
of the HZ, generously assuming an
inner edge
of 0.9 AU and an outer edge
of 1.5 AU for our own
solar system.
Others (such as Glenn Schneider
of the University
of Arizona and Scott Kenyon
of the Smithsonian Astrophysical Observatory), however, argue that a giant
planet in the
system could gravitationally deflect comets and asteroids away from inner planets that may support life in the liquid water zone, in the same way that Jupiter protects Earth in the Solar S
system could gravitationally deflect comets and asteroids away from
inner planets that may support life in the liquid water zone, in the same way that Jupiter protects Earth in the
Solar SystemSystem.
Some astronomers have speculated that
inner Oort Cloud objects could even be extra-
Solar planets gravitationally captured from neighboring stars during the formation
of the
Solar System.
Using a lower bound
of two Earth - masses, astronomers have been increasingly relying on the label «super-Earth» for extra-
Solar planets that are probably too large to be very «Earth - like,» despite their search for
planets with characteristics closer to the
Solar System's four rocky
inner, «terrrestrial»
planets than gas giants.
Detection
of Jupiter's twin orbiting a distant Sun - like star represents the closest replication
of our own
solar system to date, and may have profound implications for creating conditions favorable to the development
of a habitable Earth - like
planet in HIP 11915's
inner solar system.
This diagram compares the
planets of the
inner solar system to Kepler - 186, a five -
planet system about 500 light - years from Earth in the constellation Cygnus.
The
planet Jupiter, with its mighty gravitational field, bats out
of harm's way many comets that would otherwise wreak havoc on the
inner solar system.
However, it is more correct to model the motion
of the Earth and
inner planets as orbiting around the barycenter
of the
solar system.
To get a sense
of what's out there, have a look at this mesmerizing graphic from the Minor
Planet Center at the Harvard - Smithsonian Center for Astrophysics showing what's known to be orbiting in the
inner solar system (with more objects being revealed almost every month):
For our earlier discussion the most significant observation is that the magnetic fields
of outer
planets can not penetrate to
inner solar system due to the influence
of solar wind.
The 4 outer
planets only, have the clout to make
solar system changes on big scales in my way
of thinking, but leaving the door open re the
inner planets on
solar cycle length.
The plasma makes it impossible for the magnetic fields
of outer
planets to penetrate
inner solar system.
Whatever the contribution
of solar variability to LOD is, it does not change the fact that outer
planets can not affect the
inner solar system trough magnetic fields because the plasma
of the
solar wind makes the magnetic effects unidirectional.
All three
of these
planets are rocky in nature and are part
of the
inner solar system, meaning that they are in between the sun and the asteroid belt.