Evolution of Comets Into Asteroids - SwRI Boulder
... object to develop a coma. Traditionally, the boundary between the formation zones for comets and asteroids has been taken to be the orbit of Jupiter at 5.2 AU, though the icy nature of several of the Galilean satellites suggests that the boundary might be placed somewhat closer to the Sun, perhaps a ...
... object to develop a coma. Traditionally, the boundary between the formation zones for comets and asteroids has been taken to be the orbit of Jupiter at 5.2 AU, though the icy nature of several of the Galilean satellites suggests that the boundary might be placed somewhat closer to the Sun, perhaps a ...
PPT
... – Problem 5, HW 1 is a good starting point for the lab questions – Note typo in Question 3 - “Jupiter” => “Saturn” ...
... – Problem 5, HW 1 is a good starting point for the lab questions – Note typo in Question 3 - “Jupiter” => “Saturn” ...
Famous Comets - Mr. Hill`s Science Website
... and see the Moon and lots of stars. Sometimes though, the Moon and stars are joined by other objects. If you looked into the sky on an evening early in 1997, you may have been able to see what looked like a star which had been smudged. In fact, this smudged star was a comet, one of the brightest com ...
... and see the Moon and lots of stars. Sometimes though, the Moon and stars are joined by other objects. If you looked into the sky on an evening early in 1997, you may have been able to see what looked like a star which had been smudged. In fact, this smudged star was a comet, one of the brightest com ...
Angelo J. A. 2007 Robot spacecraft.
... 21st centuries and beyond, sophisticated robot spacecraft represent the enabling technology for many exciting scientific discoveries for the human race. Awareness of these technical pathways should prove career-inspiring to those students now in high school and college who will become the scientists ...
... 21st centuries and beyond, sophisticated robot spacecraft represent the enabling technology for many exciting scientific discoveries for the human race. Awareness of these technical pathways should prove career-inspiring to those students now in high school and college who will become the scientists ...
Etymology - Link Observatory
... Solar System, the dust reflecting sunlight directly and the gases glowing from ionisation. Most comets are too faint to be visible without the aid of a telescope, but a few each decade become bright enough to be visible to the naked eye. Occasionally a comet may experience a huge and sudden outburst ...
... Solar System, the dust reflecting sunlight directly and the gases glowing from ionisation. Most comets are too faint to be visible without the aid of a telescope, but a few each decade become bright enough to be visible to the naked eye. Occasionally a comet may experience a huge and sudden outburst ...
PPT
... discovered, other small “planets” were found – All about 2.8 AU from the Sun • New technique (ca. 1800’s): – Invented by Max Wolfe – long-exposure photography – Look for asteroid trails on photos ...
... discovered, other small “planets” were found – All about 2.8 AU from the Sun • New technique (ca. 1800’s): – Invented by Max Wolfe – long-exposure photography – Look for asteroid trails on photos ...
THE IRREGULAR SATELLITES: THE MOST COLLISIONALLY
... and retrograde orbits in a realm where planetary perturbations are only slightly larger than solar ones. Their size distributions and total numbers are surprisingly comparable to one another, with the observed populations at Jupiter, Saturn, and Uranus having remarkably shallow power-law slopes for ...
... and retrograde orbits in a realm where planetary perturbations are only slightly larger than solar ones. Their size distributions and total numbers are surprisingly comparable to one another, with the observed populations at Jupiter, Saturn, and Uranus having remarkably shallow power-law slopes for ...
On the irrelevance of being a PLUTO! Size Scale of Stars and Planets
... • Kuiper belt is probably the last stable location of the solar system where the escape velocity (~ 7 km/s) is much higher than rotation velocity (~ 5 km/s). Beyond this, the Sun’s gravity is too weak. • The Kuiper belt has to be studied in detail for information on early solar system and its edge. ...
... • Kuiper belt is probably the last stable location of the solar system where the escape velocity (~ 7 km/s) is much higher than rotation velocity (~ 5 km/s). Beyond this, the Sun’s gravity is too weak. • The Kuiper belt has to be studied in detail for information on early solar system and its edge. ...
Pluto Flyby - New Horizons - The Johns Hopkins University Applied
... significant hazards were found, to divert the craft’s trajectory or use its dish antenna as a shield to protect the spacecraft. On July 1, the team announced that the spacecraft would remain on its optimal path through the Pluto system instead of making a late course correction to detour around any ...
... significant hazards were found, to divert the craft’s trajectory or use its dish antenna as a shield to protect the spacecraft. On July 1, the team announced that the spacecraft would remain on its optimal path through the Pluto system instead of making a late course correction to detour around any ...
Neptune Trojans as a Testbed for Planet Formation
... particles comprising a Trojan sub-disk in the solar nebula. Seed particles are presumed to be inserted into resonance as debris from collisions between planetesimals. The problem of accretion in the Trojan sub-disk is akin to the standard problem of planet formation, transplanted from the usual heli ...
... particles comprising a Trojan sub-disk in the solar nebula. Seed particles are presumed to be inserted into resonance as debris from collisions between planetesimals. The problem of accretion in the Trojan sub-disk is akin to the standard problem of planet formation, transplanted from the usual heli ...
Solar System Exploration - Lunar and Planetary Institute
... A Balanced Program of Solar System Exploration This Roadmap describes a series of small, medium, and large class missions and their enabling technologies, supported by a vigorous, balanced program of research and analysis, and creative education and public outreach. Large (Flagship Class) Missions T ...
... A Balanced Program of Solar System Exploration This Roadmap describes a series of small, medium, and large class missions and their enabling technologies, supported by a vigorous, balanced program of research and analysis, and creative education and public outreach. Large (Flagship Class) Missions T ...
The scattered disk population as a source of Oort cloud comets
... We illustrate in the following a few interesting examples of real SDOs that have different end states. Object 2000 GY32 ended up in Jupiter’s region (Fig. 4). For a little more than 1 Gyr its evolution is very smooth because it has its perihelion well outside Neptune’s orbit that prevents it from su ...
... We illustrate in the following a few interesting examples of real SDOs that have different end states. Object 2000 GY32 ended up in Jupiter’s region (Fig. 4). For a little more than 1 Gyr its evolution is very smooth because it has its perihelion well outside Neptune’s orbit that prevents it from su ...
Ultra Deep Survey for Irregular Satellites of Uranus
... detect objects that appeared in all three images from one night and which had a motion consistent with being beyond the orbit of Jupiter (speeds less than 2000 hr1). Second, all of the fields were examined by visually blinking them on a computer display screen for moving objects again with motions ...
... detect objects that appeared in all three images from one night and which had a motion consistent with being beyond the orbit of Jupiter (speeds less than 2000 hr1). Second, all of the fields were examined by visually blinking them on a computer display screen for moving objects again with motions ...
an ultradeep survey for irregular satellites of uranus
... the Sun instead of the planet’s oblateness. In other words, the satellite’s inclination is fixed relative to the planet’s orbital plane instead of the planet’s equator. By this definition, any satellite with a semimajor axis larger than the critical value acrit [2J2r 2p a3p mp /(1 M)]1/5 is an ir ...
... the Sun instead of the planet’s oblateness. In other words, the satellite’s inclination is fixed relative to the planet’s orbital plane instead of the planet’s equator. By this definition, any satellite with a semimajor axis larger than the critical value acrit [2J2r 2p a3p mp /(1 M)]1/5 is an ir ...
CAPTURE OF IRREGULAR SATELLITES DURING PLANETARY
... fraction of these planetesimals evolved into the inner solar system, producing the LHB. To study (2), we use the LHB variant of the Nice model taken from Gomes et al. (2005). In times after the LHB, the planetary orbits become gradually less eccentric due to the effects of dynamical friction from th ...
... fraction of these planetesimals evolved into the inner solar system, producing the LHB. To study (2), we use the LHB variant of the Nice model taken from Gomes et al. (2005). In times after the LHB, the planetary orbits become gradually less eccentric due to the effects of dynamical friction from th ...
mission design - Messenger - The Johns Hopkins University Applied
... Tonight, if you look up into the sky, you'll see the same bright lights that your ancestors admired, named, and used to find their way when they were lost, or to explain unusual events in their lives. With today's technological imaging, you can better see those galaxies, stars, planets, moons, comet ...
... Tonight, if you look up into the sky, you'll see the same bright lights that your ancestors admired, named, and used to find their way when they were lost, or to explain unusual events in their lives. With today's technological imaging, you can better see those galaxies, stars, planets, moons, comet ...
Uranus Neptune ppt NOTES
... • Miranda appears to have been shattered by an impact, and is still putting itself back together – Long cracks or faults riddle its surface – Rolling hills adjacent to wrinkled terrain ...
... • Miranda appears to have been shattered by an impact, and is still putting itself back together – Long cracks or faults riddle its surface – Rolling hills adjacent to wrinkled terrain ...
Other topics
... Pebble accretion combined with protoplanetary disc evolution and planetary migration (Bitsch, Lambrechts, & Johansen, 2015) Jupiter analogue forms late (after 2 Myr) and far out (beyond 15 AU) Migrates into 3 AU orbit while growing to 300 ME Growth tracks can be bundled into a growth map Early forme ...
... Pebble accretion combined with protoplanetary disc evolution and planetary migration (Bitsch, Lambrechts, & Johansen, 2015) Jupiter analogue forms late (after 2 Myr) and far out (beyond 15 AU) Migrates into 3 AU orbit while growing to 300 ME Growth tracks can be bundled into a growth map Early forme ...
The Exploration of Neptune and Triton
... What is the range of ages of Triton’s surface units? What is the current heat flow rate from Triton? 3.2 Interior and Geology Triton’s mass and density lie between those of Pluto and Europa. Voyager 2 images of Triton’s surface revealed a young surface containing landforms unlike any others seen ...
... What is the range of ages of Triton’s surface units? What is the current heat flow rate from Triton? 3.2 Interior and Geology Triton’s mass and density lie between those of Pluto and Europa. Voyager 2 images of Triton’s surface revealed a young surface containing landforms unlike any others seen ...
Pluto http://cseligman.com/text/planets/pluto.htm Pluto / The Rotation
... an Earth atmosphere). This process is still going on, as Pluto is still considerably closer to the Sun than usual, but as the planet moves away from perihelion, it is pointing less and less at the Sun, and more and more pole-on. And as it becomes more nearly exactly pole-on, toward the middle of thi ...
... an Earth atmosphere). This process is still going on, as Pluto is still considerably closer to the Sun than usual, but as the planet moves away from perihelion, it is pointing less and less at the Sun, and more and more pole-on. And as it becomes more nearly exactly pole-on, toward the middle of thi ...
The accretion of Uranus and Neptune by collisions among planetary
... Methods. We performed several series of numerical simulations. The dynamics of a considered set of embryos is influenced by the presence of Jupiter and Saturn, assumed to be fully formed on non-migrating orbits in 2:3 resonance, and also by gravitational interactions with the gas disk. Results. Our ...
... Methods. We performed several series of numerical simulations. The dynamics of a considered set of embryos is influenced by the presence of Jupiter and Saturn, assumed to be fully formed on non-migrating orbits in 2:3 resonance, and also by gravitational interactions with the gas disk. Results. Our ...
Irregular Satellites - Southwest Research Institute
... satellites have a lifetime against collisions with each other of 1 billion years, while the retrograde moons are unlikely to have collided in the age of the solar system. These collision rates were computed by Kessler for the four prograde and four retrograde moons known at that time. By contrast, ...
... satellites have a lifetime against collisions with each other of 1 billion years, while the retrograde moons are unlikely to have collided in the age of the solar system. These collision rates were computed by Kessler for the four prograde and four retrograde moons known at that time. By contrast, ...
joelcrespo - UpWardBoundGeneralScience
... Saturn was first visited by NASA's Space Probes, Pioneer 11 in 1979 and later on by the Voyager 1 and the ...
... Saturn was first visited by NASA's Space Probes, Pioneer 11 in 1979 and later on by the Voyager 1 and the ...
Ultra Deep Survey for Irregular Satellites of Uranus: Limits to
... Images were obtained with a Kron-Cousins R-band filter (central wavelength near 650 nm). The images were bias subtracted and then flat-fielded with dome flats taken at the end of each night. During exposures the telescope was autoguided sidereally on field stars. Seeing during the two nights varied ...
... Images were obtained with a Kron-Cousins R-band filter (central wavelength near 650 nm). The images were bias subtracted and then flat-fielded with dome flats taken at the end of each night. During exposures the telescope was autoguided sidereally on field stars. Seeing during the two nights varied ...
Exploration of Jupiter
The exploration of Jupiter has been conducted via close observations by automated spacecraft. It began with the arrival of Pioneer 10 into the Jovian system in 1973, and, as of 2014, has continued with seven further spacecraft missions. All of these missions were undertaken by the National Aeronautics and Space Administration (NASA), and all but one have been flybys that take detailed observations without the probe landing or entering orbit. These probes make Jupiter the most visited of the Solar System's outer planets as all missions to the outer Solar System have used Jupiter flybys to reduce fuel requirements and travel time. Plans for more missions to the Jovian system are under development, none of which are scheduled to arrive at the planet before 2016. Sending a craft to Jupiter entails many technical difficulties, especially due to the probes' large fuel requirements and the effects of the planet's harsh radiation environment.The first spacecraft to visit Jupiter was Pioneer 10 in 1973, followed a year later by Pioneer 11. Aside from taking the first close-up pictures of the planet, the probes discovered its magnetosphere and its largely fluid interior. The Voyager 1 and Voyager 2 probes visited the planet in 1979, and studied its moons and the ring system, discovering the volcanic activity of Io and the presence of water ice on the surface of Europa. Ulysses further studied Jupiter's magnetosphere in 1992 and then again in 2000. The Cassini probe approached the planet in 2000 and took very detailed images of its atmosphere. The New Horizons spacecraft passed by Jupiter in 2007 and made improved measurements of its and its satellites' parameters.The Galileo spacecraft is the only one to have entered orbit around Jupiter, arriving in 1995 and studying the planet until 2003. During this period Galileo gathered a large amount of information about the Jovian system, making close approaches to all of the four large Galilean moons and finding evidence for thin atmospheres on three of them, as well as the possibility of liquid water beneath their surfaces. It also discovered a magnetic field around Ganymede. As it approached Jupiter, it also witnessed the impact of Comet Shoemaker–Levy 9. In December 1995, it sent an atmospheric probe into the Jovian atmosphere, so far the only craft to do so.Future probes planned by NASA include the Juno spacecraft, launched in 2011, which will enter a polar orbit around Jupiter to determine whether it has a rocky core. The European Space Agency selected the L1-class JUICE mission in 2012 as part of its Cosmic Vision programme to explore three of Jupiter's Galilean moons, with a possible Ganymede lander provided by Roscosmos. JUICE is proposed to be launched in 2022. Some NASA administrators have even speculated as to the possibility of human exploration of Jupiter, but such missions are not considered feasible with current technology; such as radiation protection.