More Than Meets The Eye
March 18th, 2018
In this episode of SkyTour Radio, we will highlight Ross 128b and Kepler 446b as we continue to focus on some of the most promising star systems in our weekly Exoplanet Round Up. We will also discuss in detail asteroids, their material makeup, and the various categories they fall into and why. We also look at their origins as well as what it could mean for our future and the future of the universe.
A confirmed Earth-sized exoplanet, Ross 128b is thought to be a likely rocky exoplanet, which orbits within the inner habitable zone of the red dwarf Ross 128 at a distance of about 11 light-years from Earth and is considered one of the best candidates for habitability.
The planet is only 35% more massive than Earth, receives only 38% more sunlight, and is expected to be a temperature suitable for liquid water to exist on the surface, if it has an atmosphere.
The exoplanet was found using a decade’s worth of radial velocity data with the HARPS spectrograph (High Accuracy Radial velocity Planet Searcher) at the La Silla Observatory in Chile.
Kepler-446b is the first of the three exoplanets discovered around the star Kepler-446, in the constellation of Lyra, 391.4 light years from Earth. Their finding was confirmed in 2015, after the Kepler Space Telescope detected several transits of the object in front of its star. It has a radius almost within the limit established by experts that separates terrestrial bodies from gaseous ones, therefore, making it a possibly rocky planet.
If confirmed to be a terrestrial planet, Kepler 446b could possess canyons, craters, mountains and volcanoes and most importantly, secondary atmospheres.
The term asteroids has historically been applied to any astronomical object orbiting the Sun that did not show the disc of a planet and was not observed to have the characteristics of an active comet.
Millions of asteroids are thought to be the shattered remnants of planetesimals, bodies within the young Sun’s solar nebula that never grew large enough to become planets.
The large majority of known asteroids orbit in the asteroid belt between the orbits of Mars and Jupiter, or are co-orbital with Jupiter, however, other orbital families exist with significant populations, including the near-Earth objects.
We will discuss all types of asteroids, including Near Earth Objects, Centaurs, Kuiper Belt Objects, Scattered Disc Objects, Sednoids and Oort Cloud Objects.
SkyTour Radio explores the Universe in a down to Earth manner explaining the science we know in fun and bite-sized terms. Science is for everyone and people shouldn’t require an advanced degree to understand as long as it is delivered in an easy to follow way. From Black Holes to Extraterrestrial Life, we will explore the Universe like never before. Join us to check out such things as how stars form, how they live and, how our fate is intertwined with theirs. On the extraterrestrial life front, we will be speaking to the UFO and science arena’s top researchers and bring UFOlogy into the 21st century.
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