This planet orbits around two stars, causing irregularities in its orbit, making it vary between 95 and 93 days. Although its orbit will keep being stable for another ten million years, its angle towards us will change, meaning that we can't see another transit until 2031.
“The south pole of Mars, September 1877.” Star-land : being talks with young people about the wonders of the heavens. 1892.
Saturn and its rings captured by Hubble in Ultraviolet light.
js
Bad: aliens that insist upon referring to human women as “feeeeemales”.
Good: aliens that insist upon dividing humans into binary categories, but the binary in question is based on something we’d regard as trivial and bizarre.
[The gaping maw of the universe can do nothing for this man.]
The Last Scene In The Movie by @wh0rism
A rogue planet (also termed a free-floating (FFP), interstellar, nomad, orphan, sunless, starless, unbound or wandering planet) is an interstellar object of planetary-mass, therefore smaller than fusors (stars and brown dwarfs) and without a host planetary system. Such objects have been ejected from the planetary system in which they formed or have never been gravitationally bound to any star or brown dwarf. The Milky Way alone may have billions to trillions of rogue planets, a range the upcoming Nancy Grace Roman Space Telescope will likely be able to narrow down.
Source
image Credit: ESO/L. Calçada/P. Delorme/R. Saito/VVV Consortium
Close-Up of the Helix Nebula
This cropped version of the Helix Nebula mosaic shows cometary-filaments embedded along a portion of the inner rim of the nebula’s red and blue gas ring. At a distance of 650 light-years, the Helix is one of the nearest planetary nebulae to Earth.
Credit: NASA, NOAO, ESA, the Hubble Helix Nebula Team, M. Meixner (STScI), and T.A. Rector (NRAO).
Laika's still up there. not her body, sure, but her soul is. i saw it through my telescope one night when i was looking for aliens. she was sniffing for table scraps under saturn's ring. she chases comets and bites down on satellites. i saw her napping by neptune, she was kicking her feet. passing through the oort cloud is like the stroke of a hand on her fur. eyes like marbles and four little paws like flames. she bobs through jupiter's moons like cold moscow streets. up there the stars are a great big field. and look, she's running so fast. god damn, look at her go.
Here is a list of some interesting facts about Pluto. A dwarf planet with a very different geology than previously thought, and despite being a small celestial body - Pluto has its own moons.
Pluto was known as the smallest planet in the solar system and the ninth planet from the sun until it was reclassified by the International Astronomical Union in 2006.
Today, Pluto is called a dwarf planet. A dwarf planet orbits the sun just like other planets, but it is smaller. It is large enough for its gravity to pull it into the shape of a ball but it is too small to clear other objects and debris out of its path around the sun.
Pluto was discovered on February 18th, 1930 by the Lowell Observatory. For the 76 years between Pluto being discovered and the time it was reclassified as a dwarf planet it completed under a third of its orbit around the Sun.
On average, Pluto is more than 3.6 billion miles (5.8 billion kilometers) away from the sun. That is about 40 times as far from the sun as Earth is. Pluto orbits the sun in an oval like a racetrack. Because of its oval orbit, Pluto is sometimes closer to the sun than at other times. At its closest point to the sun Pluto is still billions of miles away but is actually closer than Neptune.
This dwarf planet has five moons. Its largest moon is named Charon (KAIR-uhn). Charon is about half the size of Pluto.
Pluto has four other, much smaller, moons. They are named Nix, Hydra, Kerberos, and Styx. They were discovered in 2005, 2005, 2011, and 2012, respectively. NASA’s Hubble Space Telescope took pictures of the new moons. All four are small.
Observations of Pluto’s surface by the New Horizons spacecraft revealed a variety of surface features, including mountains that reach as high as 11,000 feet (3,500 meters), comparable to the Rocky Mountains on Earth. While methane and nitrogen ice cover much of the surface of Pluto, these materials are not strong enough to support such enormous peaks, so scientists suspect that the mountains are formed on a bedrock of water ice.
Pluto’s surface is one of the coldest places in the solar system, at roughly minus 375 degrees Fahrenheit (minus 225 degrees Celsius). When compared with past images, pictures of Pluto taken by the Hubble Space Telescope revealed that the dwarf planet had apparently grown redder over time, apparently due to seasonal changes.
When Pluto is closer to the sun, its surface ices thaw and temporarily form a thin atmosphere, consisting mostly of nitrogen, with some methane.
Pluto’s low gravity, which is a little more than one-twentieth that of Earth’s, causes this atmosphere to extend much higher in altitude than Earth’s.
sources: solarsystem.nasa and space.com
image credit: NASA/JPL - Lowell Observatory Archives
Frontispiece. Saturn & a total eclipse. The solar system. 1852.
andrei, he/him, 21, made this at 14 when i was a space nerd but i never fully grew out of that phase so,,,,..,hubble telescope + alien life + exoplanet + sci fi nerd
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