Jupiter Rotation Movie from Pic du Midi
Image Credit & Copyright: S2P / IMCCE / OPM / JL Dauvergne et al. Explanation: Observe the graceful twirl of the Solar System’s largest planet. Many interesting features of Jupiter’s enigmatic atmosphere, including dark bands and light zones, can be followed in detail. A careful inspection will reveal that central clouds rotate slightly faster than clouds toward the poles. The famous Great Red Spot is visible at first but soon rotates out of view, only to return near the movie’s end. Other smaller storm systems ocassionally appear. As large as Jupiter is, it rotates in only 10 hours. Our small Earth, by comparison, takes 24 hours to complete a spin cycle. The above high-resolution time-lapse movie was captured over the past year by the one-meter Telescope at the Pic du Midi Observatory in the French Pyrenees. Since hydrogen and helium gas are colorless, and those elements compose most of Jupiter’s expansive atmosphere, what trace elements create the observed colors of Jupiter’s clouds remains unknown.
Orange Sun Oozing
Image Credit & Copyright: Bruno Sánchez-Andrade Nuño et al. (IAG & MPS, NRL)Explanation: The Sun’s surface keeps changing. The above movie shows how the Sun‘s surface oozes during a single hour. The Sun’s photosphere has thousands of bumps called granules and usually a few dark depressions called sunspots. The above time-lapse movie centered on Sunspot 875 was taken in 2006 by the Vacuum Tower Telescope in the Canary Islands of Spain using adaptive optics to resolve details below 500 kilometers across. Each of the numerous granules is the size of an Earth continent, but much shorter lived. A granule slowly changes its shape over an hour, and can even completely disappear. Hot hydrogen gas rises in the bright center of a granule, and falls back into the Sun along a dark granule edge. The above movie and similar movies allows students and solar scientists to study how granules and sunspots evolve as well as how magnetic sunspot regions produce powerful solar flares. A few days ago, the largest sunspot group in recent years rotated into view.
Star Forming Region S106
Image Credit: GRANTECAN and IACExplanation: Massive star IRS 4 is beginning to spread its wings. Born only about 100,000 years ago, material streaming out from this newborn star has formed the nebula dubbed Sharpless 2-106 Nebula (S106), pictured above. A large disk of dust and gas orbiting Infrared Source 4 (IRS 4), visible in dark red near the image center, gives the nebula an hourglass or butterfly shape. S106 gas near IRS 4 acts as an emission nebula as it emits light after being ionized, while dust far from IRS 4 reflects light from the central star and so acts as a reflection nebula. Detailed inspection of images like the above image has revealed hundreds of low-mass brown dwarf stars lurking in the nebula’s gas. S106 spans about 2 light-years and lies about 2000 light-years away toward the constellation of the Swan (Cygnus).