astronomy

Timelapse of Jupiter’s auroras

This timelapse video of the vivid auroras in Jupiter’s atmosphere was created using observations made with the NASA/ESA Hubble Space Telescope. Hubble is particularly suited to observing and studying the auroras on the biggest planet in the Solar System, as they are brightest in the ultraviolet.

Credit: NASA, ESA, J. Nichols

Note: Magnetic fields can be a fascinating subject. Hopefully, Juno can shed some light on curious configurations such as this June 30, 2016 HST release.
~ JN Ph, 7.5

NASA Astronomy Picture of the Day 2016 July 22 

Galaxy Cluster Abell S1063 and Beyond 

Some 4 billion light-years away, galaxies of massive Abell S1063 cluster near the center of this sharp Hubble Space Telescope snapshot. But the fainter bluish arcs are magnified images of galaxies that lie far beyond Abell S1063. About twice as distant, their otherwise undetected light is magnified and distorted by the cluster’s largely unseen gravitational mass, approximately 100 trillion times the mass of the Sun. Providing a tantalizing glimpse of galaxies in the early universe, the effect is known as gravitational lensing, a consequence of warped spacetime. It was first predicted by Einstein a century ago. The Hubble image is part of the Frontier Fields program to explore the Final Frontier.

The large stellar association cataloged as NGC 206 is nestled within the dusty arms of the neighboring Andromeda galaxy. Also known as M31, the spiral galaxy is a mere 2.5 million light-years away. NGC 206 is seen in this gorgeous close-up of the southwestern extent of Andromeda’s disk, a remarkable composite of data from space and ground-based observatories. The bright, blue stars of NGC 206 indicate its youth. In fact, its youngest massive stars are less than 10 million years old. Much larger than the open or galactic clusters of young stars in the disk of our Milky Way galaxy, NGC 206 spans about 4,000 light-years. That’s comparable in size to the giant stellar nurseries NGC 604 in nearby spiral M33 and the Tarantula Nebula, in the Large Magellanic Cloud. Star forming sites within Andromeda are revealed by the telltale reddish emission from clouds of ionized hydrogen gas.

Object Names: M31, NGC 206

Image Type: Astronomical

Credit: Subaru Telescope (NAOJ), Hubble Space Telescope, Local Group Galaxy Survey (Phil Massey PI), Mayall 4-Meter, Robert Gendler

Time And Spce