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8140
8140

... New Horizons has shown Pluto and Charon to be remarkable; other KBOs remain unexplored. Priorities for the Next Three Decades Technology Development Priorities: Technologies are required for unambiguous (or at least less ambiguous) life discovery and ecosystem exploration. This may require a departu ...
Pocket Planetarium * Volume 21
Pocket Planetarium * Volume 21

... week in April. You can find it at twilight, 30 to 45 minutes after sunset, above the west-northwest horizon. Mercury is brighter at the start of this observation period and quickly dims after April 7. On the evening of March 29, the lunar crescent lies 10 degrees to the left of Mercury, forming a la ...
Jupiter Maddie Hunt
Jupiter Maddie Hunt

... 46 of them are less than 3 km wide They were all discovered between 1610-2004 Four Biggest moons are called the Galilean moons because he discovered them Galilean moons: Io, Europa, Ganymede and Callisto These are about the same size as Earths moon ...
Moon Questions
Moon Questions

... 1. What was the moon-formation idea proposed in the mid-1970s? Possible student response: Scientists proposed the “giant-impact hypothesis.” According to this idea, a Mars-sized body called Theia collided with the Earth 4.5 billion years ago with such force that debris from both Earth and Theia was ...
Voyager Program
Voyager Program

... the brightly banded planet already exceeded the best taken from Earth. Voyager 1 completed its Jupiter encounter in early April, after taking almost 19,000 pictures and many other scientific measurements. Voyager 2 picked up the baton in late April and its encounter continued into August. They took ...
Solar System
Solar System

... Motions of the Planets Since the planets move around the sun at different speeds in different orbits, the planets will appear at different places in the sky at different times but always near the ecliptic. Whenever a planet is a “morning star”, that is, it appears in the morning, it will be “west” ...
Pocket Planetarium V17N3.indd
Pocket Planetarium V17N3.indd

... the end of April, but this is not a favourable apparition for the dazzling planet: It remains low on the horizon for the next few months. Fortunately, Venus is so bright it outshines the glow of twilight and is easy to find: Look above the west-northwest horizon, half-an-hour after sunset; the plane ...
Saturn Entry Probe Science Objectives
Saturn Entry Probe Science Objectives

... Typical Atm-Relative Entry Speeds At the Giant Planets Speeds in km/s; assume “typical” hyperbolic approach V∞ Entry Orbit ...
Jupiter` moons
Jupiter` moons

... · Impact craters tell us a lot about the orbit, surface age, surface material, etc. · In terms of their orbit, planets have a trailing and leading hemisphere, as is confirmed by the ratio of impacts on each hemisphere (trailing = less, leading = more). Indicates that these moons are tidally locked t ...
File
File

... URANUS - father of all the Greek gods and god of the sky. Often wealthy Greeks and Romans lounged around at meals or in conversation and the typical position for them to do this would be to recline on pillows on their side. Just as they reclined on their sides, Uranus is "lying on its side" as it ro ...
Jupiter - Midland ISD
Jupiter - Midland ISD

...  Weather on Jupiter is damaging at all times, but sudden storms can be an impossible hazard for space craft to overcome. ...
PRIMARY SOURCE from Starry Messenger
PRIMARY SOURCE from Starry Messenger

... the form and construction of which I shall first briefly explain, as well as the occasion of its having been devised. Afterwards I shall relate the story of the observations I have made. . . . We have now briefly recounted the observations made thus far with regard to the moon. . . . There remains the ...
Lecture 1: Our Solar System
Lecture 1: Our Solar System

... • Called Galilean satellites • Each has its own character • Callisto - outermost Galilean moon • Europa - smallest Galilean moon • Ganymede - largest Jovian satellite • Io - innermost Galilean moon and is also volcanically active ...
Fig. 23-CO, p.548
Fig. 23-CO, p.548

...  During 1978 Charon was discovered; by measuring Charon’s orbit, can calculate relative masses of each.  From diameter and mass calculations, Pluto’s density is less that granite and greater than ice (so mixture of rock and ice).  During 2005, astronomers detected two other moons orbiting Pluto. ...
ppt - Earth and Space Sciences at the University of Washington
ppt - Earth and Space Sciences at the University of Washington

... (99.8% of mass of solar system) • Density: 1.41 (water = 1) • Composition (by mass): Hydrogen: 73%, Helium: 25%, ...
Triple Conjunction of Jupiter and Saturn
Triple Conjunction of Jupiter and Saturn

... describes the celestial events for then upcoming 13 months. The tablet shows that Jupiter and Saturn would remain together in the constellation of Pisces for eleven months and come in close conjunction three times. Since the Babylonian lunar year begins at the vernal equinox (March/April), the table ...
Jupiter`s Relative Size
Jupiter`s Relative Size

... reasons why it might be useful to present this kind of "false advertising." When making solar system models, sometimes the planets and their moons are not quite to scale. For example, Jupiter should be about 11 times bigger by diameter (1400 times bigger by volume) than Earth, but in diagrams, the t ...
Monday, March 3
Monday, March 3

... the University of Padua • With the aid of a Spyglass recently invented by him • In the surface of the moon, in innumerable fixed stars, in nebulae, and above all: • In four planets, swiftly revolving about Jupiter at differing distances and periods, and known to no none before the Author recently pe ...
Script Planets of our Solar System
Script Planets of our Solar System

... Jupiter actually has a set of rings around it, as well. However, they are so small and dark, they are hard to see. But, Saturn’s rings are much bigger and brighter. The rings of Saturn are made up of rock, ice, and dust. If you notice, like most other planets, Saturn rotates from L to R. The rings a ...
The outer solar system has four giant planets.
The outer solar system has four giant planets.

... Remember to draw a word triangle when you read a new term. ...
solar system - s3.amazonaws.com
solar system - s3.amazonaws.com

... Solid carbon dioxide is found at the poles Mars is known as the Red Planet Has largest mountain in our solar system Two known moons. ...
Solar System Reading Packet
Solar System Reading Packet

... times larger than it does on Earth. When the Sun is overhead on Mercury, the temperature rises to about 430°C ...
Neptune - SUSD Student Community
Neptune - SUSD Student Community

... rotate once on its axis. That's about 2/3rds of an earth day. Neptune takes 164 Years, 288 Days, 13.0 Hours to orbit the sun. Moons:Neptune has 13 known moons; 7 small named ...
Station 1 - Fall River Public Schools
Station 1 - Fall River Public Schools

... What Are the Defining Characteristics of Mercury? Mercury is the smallest planet. It has no moons. As the closest planet to the sun, Mercury also has the shortest period of revolution. Mercury completes its orbit in 88 Earth days. Mercury is so close to the sun that solar winds have blown most of it ...
The Planets
The Planets

... Mars: The Red Planet  Water on Mars • Some areas of Mars exhibit drainage patterns similar to those created by streams on Earth. • Images from the Mars Global Surveyor indicate that groundwater has recently migrated to the ...
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Naming of moons

The naming of moons has been the responsibility of the International Astronomical Union's committee for Planetary System Nomenclature since 1973. That committee is known today as the Working Group for Planetary System Nomenclature (WGPSN).Prior to its formation, the names of satellites have had varying histories. The choice of names is often determined by a satellite's discoverer; however, historically some satellites were not given names for many years after their discovery; for instance, Titan was discovered by Huygens in 1655, but was not named until 1847, almost two centuries later.Before the IAU assumed responsibility for astronomical nomenclature, only twenty-five satellites had been given names that were in wide use and are still used. Since then, names have been given to 129 additional satellites: 45 satellites of Jupiter, 43 of Saturn, 22 of Uranus, 11 of Neptune, 5 of Pluto, 1 of Eris, and 2 of Haumea. The number will continue to rise as current satellite discoveries are documented and new satellites are discovered.At the IAU General Assembly in July 2004, the WGPSN suggested it may become advisable to not name small satellites, as CCD technology makes it possible to discover satellites as small as 1 km in diameter. To date, however, names have been applied to all moons discovered, regardless of size.
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