In the New York Times last month, an author identified the planet HD 189733b as a “super-Earth” and stated that it is one of the nearest planets in the solar system to Earth. However, although some believe the planet is one of these extrasolar planets, there are actually at least three other planetary bodies which are considered the closest possible analogs of our planet, namely HD 189733b, HD 189734 and HD 189735.
Is the Super-Earth in the Hade Einstein’s “Super Planet”
A less energetic cousin of Earth, the first two are classified as “hydrostatic-mass objects,” which means that they possess all the key properties of a rocky terrestrial planet and are believed to have formed from a cloud of gases and debris. These two super-Earths, HD 189733b and HD 189734, are estimated to have a mass between one and a half times that of Earth, making them the densest terrestrial planet within a million miles or so of its parent star.
Of course, when it comes to a planet’s size, HD 189733b is only about eight percent of the size of Earth. By contrast, the other two, HD 189734 and HD 189735, are thought to be approximately the same size as Earth with masses between three and four times Earth’s mass.
Since HD 189733b has a smaller mass than either of the other two, it is still considered a super-Earth, although astronomers consider it to be the innermost of the three. This may be because HD 189733b is the one most like Earth that researchers have been able to study up to this point.
The properties of HD 189733b were very much studied when it was first discovered in 1828. This has led to the theory that the planet is a “mini-Neptune,” which, because of its enormous size, is thought to have formed much earlier in its lifetime.
HD 189733b is a super-Earth?
Since HD 189733b is a so-called super-Earth, it is believed to have had liquid water on its surface during the period of its formation, although it was most likely covered by a thick atmosphere. Because of this, it is thought to have had a rocky core at its earliest stages, which could have lasted for about five hundred million years before it became heated by the sun and converted into a gaseous state.
Like all the other Earth-like planets in the solar system, HD 189733b also has a tilt axis that is very close to the ecliptic plane, which means that the planet is nearly circular. The orbit of the planet is highly inclined to the ecliptic plane, making it nearly a third of the distance between the sun and Earth.
Most of the characteristics that make HD 189733b a super-Earth are expected to hold true even if we did not already know of the existence of the existence of such a planet. These include a high density (at least three times Earth’s), and the presence of water.
Although these properties may sound surprising, they are considered by most astronomers to be well within the range of what is expected to be found on any other Earth-like planet. In fact, astronomers used a numerical model to predict the existence of water on a gas giant planet like HD 189733b as long ago as 1998.
Although HD 189733b and other similar planets in the outer solar system do not have the same features as those found on Earth, such as oceans, continents, cities, and a life-support system, their surface has similarities to the terrestrial planets. Many of these features, such as the absence of major plate tectonics and the fact that ice covers a substantial portion of the planet’s surface, indicate that the planet is less Earth-like.
However, ifan extremely-old Earth-like planet exists which resembles HD 189733b, it would make sense that astronomers would find this planet to be a super-Earth. Indeed, due to the proximity of the planet, and its exceptional conditions, it is most likely that some of these characteristics will be found on any super-Earth found, including HD 189733b.
Discovery, HD 189733b Planet Facts
In the world of science and technology, NASA’s Hubble Space Telescope is the most famous space telescope in the world. Because of the difficulties of watching distant galaxies and planets, astronauts from all over the world have been using the space telescope to learn about the cosmos. However, Hubble uses a different type of telescope than the one we have now, the telescope it currently uses, known as the Hubble Space Telescope (HST), is too big to fit into the Hubble Space Telescope all its own.
The HD 189733b planet was found by NASA scientists using the infrared telescope. Although this telescope does not work well at an infrared wavelength, because the light it collects is scattered by molecules and atoms in the atmosphere, some astronomers think that it might be an infrared planet. Therefore, the name HD 189733b is a type of planet that does not emit visible light but gives off infrared radiation in other wavelengths.
One of the questions many people have asked is whether or not Hubble can find HD 189733b. But before answering, let us see if this planet has a name to it, or how scientists call it. Most scientists use the abbreviation HST for Hubble Space Telescope, which is quite confusing. Why not call it HD 189733 if it exists, right?
And on that same note, it should be mentioned that HD 189733b has not been officially named by astronomers yet. It is still up to the public to come up with a name for this planet.
No matter how you look at it, the astronomer did find a HD 189733b planet. However, the Earth is not the only place it is actually found, this is a planet found near the edge of the habitable zone, which is where our planet might have a chance of hosting life. Now this planet is a strange one, unlike anything else in the universe. Some of the strange facts about this planet include:
First of all, it has a strange shape, like something out of a science fiction movie. NASA calls it a “hot Jupiter” because of its similar temperature, density and gravity of that of Jupiter.
Secondly, it orbits the star at a relatively low distance, making it much cooler than other stars. What makes it even more interesting is that in order to make this planet, there is something necessary, which makes it a unique sort of object in the universe.
Thirdly, this planet has no atmosphere, meaning it is a hot and rocky planet, which is why it’s called a “hot Jupiter”. However, the surface of this planet is highly volatile, which means that it might have some atmosphere, but that atmosphere would be very thin.
Scientists believe that this planet might be an exoplanet, a planet that was never born, that is, there is a possibility that this planet could have been in the past and has been waiting until now to be observed by our telescopes. Of course, the odds of such a phenomenon are still relatively slim, but still, a lot of research is going on to try and discover a new habitable planet, which will in turn lead to discovering new worlds.
Astronomers hope that someday we will find another HD 189733b planet and that they will be named differently. However, as of now, this planet is known as HD 189733b. What will happen in the future is anyone’s guess, and there may never be another planet that’s like this.
For now, it’s just a HD 189733b planet, which is very interesting to say the least. You should check it out, if you haven’t already, and enjoy!