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Show 8V V The Salt Lake Tribune, Wednesday, Jjnuar J5, 1986 Halleys Comet, Voyager 2 Will Give Spaee Junkies a Big Dose ol Activity Duraban Tribune Siaff Writer Lite on earth may be boring now that the holidays aie over but it's a (ood time to look up and gaze into the sky. Halley's comet is becoming more visible and Voyager 2 will be sending thousands oi pictures of the planet Uranus. Halley's comet can be seen, through the aid of the University of Utah physics department's telescope, through the end of January. As it moves westward toward the sun, the comet should brighten and develop a dust tail. The best time to look is at the end of evening twilight, said Hansen Ilanetanum education eooidina-to- r Seth Jarvis On Sunday, the comet was 13 degrees north ol the crescent moon and from Monday to Jan 26 the comet will be eight degrees north of Jupiter. After January, the comet will be lost in the sun's glare until late February. The comet passes on the far side of the sun and reaches perihelion (the closest approach to the sun) on Feb. 9. From late February to early April the comet is best aeon as morn-nis, u i " t a) minutes before By Ana o r Ui Only Neptune and Pluto are further away. It is 4 1 times larger than Earth and 14 5 times more dense. Its moons are Titania, Oberon, Ariel, Umbriel, Miranda and the newest one, found in December of last year is simply named 1985 Ul Little else is known about the small bluish world. Uranus was discovered by accident by Sir William Hers' hel in 1781. He thought it was a comet until his calculations proved it was a new world. The planet had been noticed before, is 12 star charts from the period showed, but only Sir proved it was a planet. He also found two of Uranus' moons In recent years, however, more knowledge has been obtained, again, by accident, In March 1977, Uranus eclipsed the earth. From that, Mr. Jarvis said, scientists were hoping to learn the size of the planet and its components. They found out more than that. As the planet started to eclipse the Earth, a specially-desigNational Aeronautics and Space Administration airplane called the Kuiper Airborne Observatory, recorded four small "wigets" on its scope. The were four rings. After the planet had passed Earth, the observatorys scope recorded five more rings. Prior to this, scientists had not even guessed that Uranus possessed rings. Each ring is not more than six miles wide and their mass is less than 61) miles deep. ment, since the image was observed when 13 to 30 photographs were superimposed on each other and enhanced. The pattern appears as a dai k area around the planet's south pole, which is facing the sun since, unlike Earth and most other planets. Uranus lies at a angle. Each of Uranus' four seasons last for 21 years, Mr. Jarvis added. Voyager 2 s latest photos should answer that question as well as others dealing w ith the duration of Uranus' rotation and mystery of why the planet's rings have not dissipated over the years. Mr Jarvis said Voyager 2 may show, like it did in its investigation of Saturn, that Uranus has "shepherd moons" around its rings. These moons, with their gravi rain storm occurs over the receiving stations In that case everything will be lost. Mr Jarvis said After leaving Uranus. Voyage 2 will go to Neptune, lake more photos and then fly over the top of the planet and exit the solar system. If the probe is still functioning, its last information will be about the boundaries o the solar system. That will be toward the end of the century tational push and pull, are keeping Saturn's rings together During Voyager 2's transmission, powerful radio telescope stations around the world will be keeping record. Currently, the stations, located in Spain, Australia and California, are locked onto Voyager 2. waiting for its transmission. The transmission is expected to go well unless a Her-sch- n wi-ge- ts Hut the forthcomme pictures of Uranus will be as unique as the chance to view Halley's comet On Jan. 24, starting at approximately 11 am. MST. Voyager 2 will be transmitting for six intense hours thousands of pictures of the planet as it comes within 60,000 miles of the surface, Mr. Jarvis said From these pictures, scientists from around the world hope to answer several questions about the planet's composition, rings, magnetic field, moons and weather. Voyager 2, which was launched in August 1977, has taken more than eight years traveling at nearly 40,000 mph to reach Uranus, a planet which the probe was originally not supposed to reach. Mr. Jarvis said. "Voyager 2 is old, arthritic and half blind. It's remarkable it's still functioning. Anything we gel from it will be free science, he said. Uranus is the seventh planet furthest from the sun and is considered the midway mileage point in the solar system, he said. The planet is 1.8 billion miles from Earth. nine-plan- The finding of rings, he said, is significant. Scientists knew about Saturn's rings but were surprised to discover that Jupiter also possessed rings. Because of this observation, Mr. Jarvis said, scientists are now calculating that Neptune will have rings because it is a large, gaseous planet. Voyager 2, providing it doesnt break down, should reach Neptune by 1989. More was discovered last November when Voyager 2's two telephoto television cameras photographed an apparent icy fog over the planet's south pole Since then, scientists at NASA's Jet Propulsion Laboratory have been debating whether the weather pattern exists or is a product of extreme computer processing and photo enhance Davis Board OKs Travel Policy Special to The Tribune FARMINGTON After years of consideration, the Davis Roard of Education recently approved an travel policy by a vote of but not without further debate and a last minute amendment The policy has been debated for about three years and board members expressed hope the new policy will .resolve concerns expressed by parents over the years. In fact. Board Member Raymond Broscoe, weary of the debate, seconded the motion to approve the policy with the hope, "It will never rise again. Only moments later there was more discussion. A clause requiring a 1,000 mile limitation on travel was amended to simply a recommendation of such, with board member Dee R. Forbes voting against the amendment and later voting against the policy itself because of the lack of a mileage limitation. "If you're going to make it a recommendation instead of a requirement you might as well forget about it all together," Mr. Forbes said. The travel policy makes it mandatory plans for out of state trips be approved by the principal and the superintendent of schools Only appeals will be considered by the school - 4-- board. Groups will not be permitted to take extensive trips, with a maximum of four school days missed allowed. Students involved in several activities may have to choose between specific trips. The policy also calls on the local PTA unit to conduct a secret ballot among affected parents for each proposed trip. Eighty percent of parents involved must agree to the trip. the school board By a Vote of determined that a ballot should be taken before the trip is approved. Board President Sheryl Allen said she thought it would be more effective if the parental vote was the last step, saying she thought the parents would feel they had more wallop that way. However, board member Henry Heath disagreed saying if he were an administrator making a decision on whether to approve a particular trip or not, he'd want the input of parents. The policy also limits an individual student's costs to $400 above that raised through fund raising efforts. Board members agreed student trips often place an unfair financial burden on parents, especially when more than one child in a family participates in such trips. The hottest stove built. Dai?s)in) 2 CEDAR The Amazing I FREE STANDING This is the stove that made Heritage famous is here, Heats 1,800 sq.ft. 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