#Saturn, #SaturnTime; #NASA'sCassinispacecraft
New York, Jan 26 (Canadian-Media): Researchers believe to have been able to find out that length of a day on Saturn is 10 hours, 33 minutes and 38 seconds with the help of new data from NASA's Cassini spacecraft, media reports said.
NASA/JPL-Caltech/Space Science Institute
This data was made use of by Christopher Mankovich, a graduate student in astronomy and astrophysics at UC Santa Cruz, and could conclude the answer was hidden in the rings.
The gas giant lacked solid surface with landmarks to track as it rotated leaving planetary scientists for decades in the dark of this fact, further eluded by the unusual magnetic field that hides the planet's rotation rate.
His work determined that the rings respond to vibrations within the planet itself, and the rings, in turn, detect those movements in the field.
Mankovich's research, published Jan. 17 by Astrophysical Journal, describes how he developed models of Saturn's internal structure that would match the rings' waves. That allowed him to track the movements of the interior of the planet — and thus, its rotation.
Saturn scientists are elated to have the best answer yet to such a central question about the planet.
The idea that Saturn's rings could be used to study the seismology of the planet was first suggested in 1982, long before the necessary observations were possible.
The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency (ESA) and the Italian Space Agency.
(Reporting by Asha Bajaj)
Toronto, Jan 18 (Canadian-Media): A total lunar eclipse would occur on Jan 20 or 21 when the moon would be at the closest point to Earth in its elliptical orbit, media reports said.
This occurrence during a full moon when the moon would be at the closest point to Earth in its elliptical orbitis is reportedly referred to by the non-astronomers as a "super moon".
would be visible to Canadians depending on where you are in the country, media reports said.
This would reportedly be the the first full moon of 2019, and the first lunar eclipse of 2019 -- this being a an eclipse-heavy year, with three solar and two lunar eclipses, this January 20-21 -- and the moon is expected to turn a coppery-red - popularly known as 'super blood wolf moon' - as the Earth's atmosphere scatters the light from the sun.
The eclipse will happen on the night of the year’s first of three straight full supermoons, meaning the moon will be nearly at its closest to Earth for this January, as the eclipse takes place.
It can be viewed from North and South America, Greenland, Iceland, Europe, northern and western Africa, plus the Arctic region of the globe.
At the eastern/western fringes of the viewing area, only the beginning or ending stages of this eclipse would reportedly be visible. For instance, from the Middle East and eastern/southern Africa, only a glimpse of the beginning of the partial eclipse would be visible low in the western sky shortly before the sun rises and the moon sets on January 21.
At the other extreme – from the temperate regions of northeastern Siberia – only a glimpse of the of the final stages of the partial eclipse -- low in the eastern skyfor a short while after the sun sets and the moon rises on January 21 -- would be visible..
The worldwide map below shows where the eclipse is visible worldwide, and, beneath the map, we give the local times for the eclipse at North American and U.S. time zones.
Lunar Eclipse map & animation
For more specifically when this eclipse is visible from your part of the world, one of these sources would be helpful: Total lunar eclipse on January 20-21 via TimeandDate.com; Exact times of eclipse’s phases via Time.Unitarium.com; Total lunar eclipse (put in your time zone) via Hermit Eclipse
Orange and red light with longer wavelengths refract, or bend, around the Earth and eventually reach the moon.
With clear skies, the entire nine-and-a-half-hour event can be seen in Canada from coast-to-coast, which will actually last just over four hours.
In case of cloudy nights, the total lunar eclipse can be watched online.
The Virtual Telescope Project - remotely controlled robotic online telescope - will begin to air this phenomenon at 10:30pm ET.
TimeandDate.com will begin their coverage at 10pm ET.
During its penumbral phase, where it glides through Earth's outer, a much fainter shadow is visible.
Once the moon enters the umbra or darker shadow, one can see partial eclipse of the moon.
It is when the moon, about 90 minutes later, reaches totality, it still unknown if the moon will turn a coppery red or remain dark.
As the moon begins its exit through the umbra and eventually the penumbra, the process goes in reverse and full eclipse of the moon can be seen.
Unlike a solar eclipse, a lunar eclipse can be viewed directly without any harm to human eyes.
(Reporting by Asha Bajaj)