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Hubbletelescope

All articles tagged with #hubbletelescope

astronomy1 year ago

Spot the Andromeda Galaxy on December 19, 2024

On December 19, 2024, the Andromeda Galaxy, also known as Messier 31, will be prominently visible in the southern sky after twilight, offering a great opportunity for stargazers, especially in areas with minimal light pollution. This event coincides with the centennial of Edwin Hubble's announcement that Andromeda is a separate galaxy, a discovery made possible by observing Cepheid variables. The galaxy can be located near the Great Square of Pegasus and is best viewed with binoculars. Additionally, the gibbous moon will be near the Sickle of Leo before sunrise.

via When the Curves Line Up|
#andromedagalaxy#astronomy#cepheidvariables
science-and-technology2 years ago

"Mysterious Dark Spokes Observed by Hubble in Saturn's Rings"

NASA's Hubble Space Telescope has captured new images of mysterious dark "spokes" in Saturn's rings, which are more visible as Saturn approaches its equinox. These transient features, larger than Earth in size, vary in frequency with Saturn's seasons and are believed to be influenced by the planet's magnetic field interacting with the solar wind. While the exact mechanism of their formation remains uncertain, the leading theory suggests that electrostatic forces may levitate ice or dust particles above the rings to create the spokes.

via IFLScience|
##astronomy#hubbletelescope
science-and-technology2 years ago

"Hubble Tracks Transformations in Exoplanet Atmosphere Across Three Years"

NASA's Hubble Space Telescope has provided astronomers with a unique data set by observing the exoplanet WASP-121 b, also known as Tylos, over the years 2016, 2018, and 2019. These observations revealed that the exoplanet's atmosphere changes over time, with evidence of dynamic weather patterns such as massive cyclones. The close proximity of WASP-121 b to its host star results in extreme temperatures and phenomena like iron rain on the night side. The study, which combines observational data with computational modeling, marks a significant step in understanding weather on exoplanets and could aid in the search for habitable worlds.

via Phys.org|
##astronomy#atmosphericscience
science-and-technology2 years ago

"Hubble's Glimpse into the Spiraled Depths of Cosmic Scale"

The Hubble Space Telescope has captured an image showcasing a group of spiral galaxies, highlighting the deceptive nature of spatial perception in astronomy. The image features NGC 1356, LEDA 467699, LEDA 95415, and IC 1947, with some appearing to be close companions due to their angular proximity. However, the actual distances between these galaxies are vast, with NGC 1356 and LEDA 95415 being nearly 300 million light-years apart, while NGC 1356 and IC 1947 are much closer in three-dimensional space than they appear, demonstrating the complexity of interpreting cosmic distances from two-dimensional images.

via Phys.org|
##astronomy#cosmicdistances