Four Blood Moons Just Ahead. Four blood moons on Jewish feast days are getting ready to appear for the fourth time in the last 500 years. According to NASA, they will.
Space Pictures - Hubble Images and Night Sky Photos. July 0. 5, 2. 01. Saturn is the sixth planet from the Sun and is the second largest in the solar system with an equatorial diameter of 119,300 kilometers (74,130 miles).See photos of the launch here. Saturn. Saturn. It is difficult to say what is impossible, for the dream of yesterday is. Robert Goddard. Table of Contents. Saturn Introduction. Saturn's Moons. Atlas,Calypso,Dione,Enceladus,Epimetheus,Helene,Hyperion,Iapetus,Janus,Mimas,Pan,Pandora,Phoebe,Prometheus,Rhea,Telesto,Tethys,Titan,Possible New Satellites. Saturn Science. Other Resources. Saturn is the sixth planet from the Sun and is the second largest in the. Much of what is known about the planet is due to the. Voyager explorations in 1. Its day is 1. 0 hours, 3. Earth years to revolve about the Sun. The. atmosphere is primarily composed of hydrogen with small amounts of. Saturn is the only planet less dense than water. In the unlikely event that a large enough ocean. Saturn would float in it. Saturn's hazy yellow hue is. Jupiter. Near the equator, it reaches. The wind blows. mostly in an easterly direction. The strongest winds are found near the. At. latitudes greater than 3. The rings are split into a number of different. A and B rings and a fainter C ring. The. ring system has various gaps. The most notable gap is the Cassini. The origin of the rings is obscure. It is thought. that the rings may have been formed from larger moons that were. The ring composition. They may be composed of icebergs and/or snowballs from a few. This phenomenon is demonstrated by the relationship between. F- ring and two small moons that shepherd the ring material. The features are believed to be composed of fine, dust- size. The spokes were observed to form and dissipate in the. Voyagers. While electrostatic charging. The images were taken over the course of two hours on Oct. Cassini was approximately 6. Saturn. Since the view seen by Cassini during this time. The full color footprints were put. Saturn's splendid features noted previously in single frames taken by. Cassini are visible in this one detailed, all- encompassing view: subtle. F ring, ring shadows. Saturn's. southern hemisphere to the right. Tiny Mimas and even smaller Janus are. Later in the mission. Saturn and also into. Sun, Cassini will be able to look back and view. Saturn and its rings in a more fully- illuminated geometry. This light at 5. 1 microns wavelength. Saturn, and works its way upward, eventually. Thick clouds deep in the atmosphere block that light. Saturn's strong thermal glow at 5. These deep clouds are likely made of ammonium. The northern hemisphere is about twice. This is because high- level, fine. These particles block Saturn's glow more strongly, making Saturn. Two bright, presumably. B- ring (left of planet). The moons. Rhea and Dione, appear. Saturn, respectively. Voyager. 2 made its closest approach to Saturn on August 2. The. outer layer is primarily composed of molecular hydrogen. As we. go deeper where the presure reaches 1. When the hydrogen reaches a pressure. In this state it resembles a molten metal. This metalic. hydrogen state occurs at about half of Saturn's radius. Below. this is a layer dominated by ice where . Finally at the center is a rocky or rocky- ice core. Hamilton)Saturn With Tethys and Dione. Saturn and two of its moons, Tethys (above) and. Voyager 1 on November 3, 1. The shadows of Saturn's three bright rings. Tethys are cast onto the cloud tops. The limb of the planet can be. Cassini. Division, which separates ring A from ring B. The view through the much. Encke Division, near the outer edge of ring A is less clear. Along this path, shorter wavelength blue. Why. the upper atmosphere in the northern hemisphere is so cloud- free is not. The ring shadows at higher latitudes correspond to. A ring. This. ring- plane crossing occurs approximately every 1. Earth. passes through Saturn's ring plane. The dark band across the middle of Saturn is the. Sun is almost 3 degrees. The bright stripe directly above the ring shadow. Saturn's atmosphere. The east- west extent of this storm is equal to. Earth (about 1. 2,7. The planet's strongest eastward winds, clocked at. Voyager spacecraft. The. clouds expanding north of the storm are swept westward by the winds. The strong winds near the latitude of the dark. The storm's white clouds are ammonia ice crystals that. Saturn's. frigid cloud tops. Hubble resolves a luminous, circular band. This curtain. changed rapidly in brightness and extent over the two hour period of HST. These wavelengths are absorbed by the Earth's atmosphere. Hamilton)False Color Image of Saturn's Rings. Possible variations in chemical composition from one part of. Saturn's ring system to another are visible in this Voyager 2. This highly enhanced. August 1. 7, 1. 98. In addition to the previously known blue. C- ring and the Cassini Division, the picture shows. B- ring and. and outer region (where the spokes form) and between these and. A- ring. This view shows. Dione in the forefront, Saturn rising behind. Epimetheus (top- left) and. Rhea just to the left of Saturn's rings. The cloud covered. Titan is at the top- right. Hamilton). Saturn has 3. In addition. there are other unconfirmed satellites. One. circles in the orbit of Dione, a second is located between the orbits. Tethys and Dione, and a third is located between Dione and Rhea. The. unconfirmed satellites were found in Voyager photographs, but were not. Recently, the Hubble Space. Telescope imaged four objects that might be new moons. Only. Titan has an appreciable atmosphere. Most of. the satellites have a. The exceptions. are Hyperion, which has a chaotic orbit, and. Phoebe. Saturn has a regular system of. That is, the satellites have nearly circular orbits and lie. The two exceptions are. Iapetus and Phoebe. This. indicates they are composed of 3. Showalter. 19. 90. S/2. 00. 5 S1. 7? Cassini Spacecraft. Atlas. XV2. 0x. 15? R. Terrile. 19. 80. Prometheus. XVI7. S. Collins & others. Pandora. XVII5. 7x. S. Collins & others. Epimetheus. XI7. 2x. R. Walker. 19. 80. Janus. X9. 8x. 96x. Audouin Dollfus. 19. Mimas. I1. 98. 6 +- 0. E+1. 91. 85,5. 20. William Herschel. Enceladus. II2. 49. E+1. 92. 38,0. 20. William Herschel. Tethys. III5. 29. E+2. 02. 94,6. 60. Giovanni Domenico Cassini. Telesto. XIII1. 7x. B. Smith & others. Calypso. XIV1. 7x. B. Smith & others. Dione. IV5. 59. Laques & J. Lecacheus. 19. 80. Rhea. V7. 64. Gladman. Ijiraq. XXII5. 11,4. J. J. Kavelaars, B. Gladman. 20. 00. Phoebe. IX1. 15 x 1. 10 x 1. E+1. 81. 2,9. 52,0. William Henry Pickering. Paaliaq. XX9. 5. 15,1. B. Gladman. 20. 00. Skathi. XXVII3. 2. J. J. Kavelaars, B. Gladman. 20. 00. Albiorix. XXVI1. 31. 6,3. 94,0. M. Holman, T. B. Spahr. Erriapo. XXVIII 4. J. J. Kavelaars, B. Gladman. 20. 00. Siarnaq. XXIX 1. 61. 8,1. 95,0. B. Gladman, J. J. Kavelaars. 20. 00. Tarvos. XXI6. 5. 18,2. J. J. Kavelaars, B. Gladman. 20. 00. S/2. S1. 3. 3. 18,7. 19,0. S. S. Sheppard. 20. Mundilfari. XXV2. B. Gladman, J. J. Kavelaars. 20. 00. Suttungr. XXIII2. B. Gladman, J. J. Kavelaars. 20. 00. Thrymr. XXX 2. 8. B. Gladman, J. J. Kavelaars. 20. 00. Ymir. XIX8. 23,1. B. Gladman. 20. 00. Thomas, P., J. Morrison, M.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
September 2017
Categories |