Saturday, January 28, 2012

Event2 Tata Surya yg tak bisa dilihat dari Bumi

Ada beberapa peristiwa di tata surya kita yang tidak bisa kita saksikan dari bumi meskipun kita memiliki teleskop. Contohnya bagaimana kita melihat bumi? atau bagaimana kita melihat langit senja di planet mars?. Berikut ini adalah beberapa peristiwa tersebut.

Beberapa gambar dibawah ini adalah animasi (GIF), seperti gambar pertama. Namun beberapa gambar harus anda klik terlebih dahulu sebelum terlihat animasinya.

An animation of the sun, seen by NASA's Extreme ultraviolet Imaging Telescope (EIT) over the course of 6 days, starting June 27, 2005.

Most of Africa and portions of Europe and Asia can be seen in this photograph taken from the Apollo 11 spacecraft during its translunar coast toward the moon. Apollo 11 was already 98,000 nautical miles from Earth when this picture was made on July 17th, 1969.

"Here is what the Earth looks like during a solar eclipse. The shadow of the Moon can be seen darkening part of Earth. This shadow moves across the Earth at nearly 2000 kilometers per hour. Only observers near the center of the dark circle see a total solar eclipse - others see a partial eclipse where only part of the Sun appears blocked by the Moon. This spectacular picture of the 1999 August 11 solar eclipse was one of the last ever taken from the Mir space station, as Mir is being decommissioned after more than ten years of productive use."

This image was produced from data from EUMETSAT's Meteosat-7 satellite which is located over the Indian Ocean, received over EUMETCast by my MSG Data Manager, with the false-colour combination produced by my GeoSatSignal-7 software combining both visible-channel and thermal-channel data from the satellite

 Total solar eclipse over Antarctica....

 "The International Space Station (ISS) was in position to view the umbral (ground) shadow cast by the Moon as it moved between the Sun and the Earth during the solar eclipse on March 29, 2006. This astronaut image captures the umbral shadow across southern Turkey, northern Cyprus, and the Mediterranean Sea..."

Even higher in the Martian sky, the Earth and Moon hang in space, as seen from Mars. The HiRISE camera onboard the Mars Reconnaissance Orbiter acquired this image at 5:20 a.m. MST on October 3rd, 2007, at a range of 142 million kilometers, while orbiting Mars.

Earth and the Moon from afar - when NASA's MESSENGER spacecraft took this image on May6, 2010, it was 183 million kilometers (114 million miles) away. North is toward the bottom of the image.

The view from the Apollo 11 Command and Service Module (CSM) "Columbia" shows the Earth rising above the Moon's horizon on July 20th, 1969. The lunar terrain pictured is in the area of Smyth's Sea on the nearside.

Earth from Moon

On May 19th, 2005, NASA's Mars Exploration Rover Spirit captured this stunning view as the Sun sank below the rim of Gusev crater on Mars. This Panoramic Camera mosaic was taken around 6:07 in the evening of the rover's 489th martian day, or sol. Spirit was commanded to stay awake briefly after sending that sol's data to the Mars Odyssey orbiter just before sunset. The image is a false color composite, showing the sky similar to what a human would see, but with the colors slightly exaggerated

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A well-defined dust devil crosses in front of the camera in this animation of a series of images acquired by NASA's Mars Rover Spirit in May, 2005.

We’ve all probably seen or at least heard about solar or lunar eclipses (when the Moon or the Earth gets in front of the Sun and mask it). But how many of you have seen a solar eclipse… done by Saturn ?

The Sun is on the opposite side, so all of Saturn is backlit

An aurora, shining high above the northern part of Saturn, moves from the night side to the day side of the planet in this movie recorded by Cassini. These observations, taken over four days, represent the first visible-light video of Saturn's auroras. They show tall auroral curtains, rapidly changing over time when viewed at the limb, or edge, of the planet's northern hemisphere. The sequence of images also reveals that Saturn's auroral curtains reach heights of more than 1,200 km (746 mi) above the planet's limb. These are the tallest known "northern lights" in the solar system. Each image was obtained with a two- or three-minute exposure, taken in visible light with the Cassini spacecraft's narrow-angle camera from October 5th to 8th 2009.

Rhea passes in front of Saturn's larger, hazy moon Titan (which is lit from behind by the sun) in June of 2006

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This five-frame sequence of New Horizons images captures the giant plume from Io's Tvashtar volcano. Snapped by the probe's Long Range Reconnaissance Imager (LORRI) as the spacecraft flew past Jupiter earlier this year, this first-ever "movie" of an Io plume clearly shows motion in the cloud of volcanic debris, which extends 330 kilometers (200 miles) above the moon's surface. Only the upper part of the plume is visible from this vantage point - the plume's source is 130 kilometers (80 miles) below the edge of Io's disk, on the far side of the moon. 

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The first color movie of Jupiter from NASA's Cassini spacecraft shows what it would look like to peel the entire globe of Jupiter, stretch it out on a wall into the form of a rectangular map, and watch its atmosphere evolve with time. The brief movie clip spans 24 Jupiter rotations between Oct. 31 and Nov. 9, 2000. The darker blips that appear are several moons and their shadows.

The shadowed side of Enceladus, seen from 1.9 million kilometers away on September 15, 2006. The plume of microscopic ice particles being ejected from the surface of the moon is clearly visible isn the scattered sunlight.

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A 30-frame sequence showing Cassini's approach to the icy plumes of Enceladus on August 13th, 2010.

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This series of images of Janus, one of Saturns's smaller moons, shows strips of light and shadow passing over its face. Janus is in the shadow of Saturn's rings, and is briefly lit by a stripe of sunlight as it passes behind a gap in the rings. Photos taken on August 27, 2009.

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This animated series of images of Saturn's F Ring was acquired by Cassini on June 10, 2009. Shepherd moons Prometheus (inner) and Pandora (outer) pass by, alternately smoothing and disturbing the particles that make up the ring. Kinks, knots, wakes and disturbances are apparent in the thin ring as it rotates. 

Sister Moons separated by rings and some distance. Saturn's rings cut across a scene ruled by Titan's globe-encircling haze, lit up by the distant Sun and interrupted only by the small, closer moon Enceladus. The scattered light around planet-sized Titan (5,150 kilometers, or 3,200 miles across) makes the moon's solid surface visible in silhouette, giant compared to Enceladus (505 kilometers, or 314 miles across). The image was taken in visible red light with the Cassini spacecraft narrow-angle camera on June 10, 2006 at a distance of approximately 3.9 million kilometers (2.4 million miles) from Enceladus and 5.3 million kilometers (3.3 million miles) from Titan.

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