Solar Gravitational Lens – Know More!
Only in the right place, a space telescope will see the image of the exoplanet enhanced by the order of magnitude. The sun will tilt the light from the planet around it, it will focus on a point on the opposite side and in fact, the planet will enlarge it in a large image. Astronomers use many techniques to find exoplanets including so-called “gravity microlensing” method. The light from a remote star and its exposition is surrounded by another star located in Midway between Earth and distant star/exoplanet which enhances its image like a telescope lens. Using this method, we have already discovered interesting planets like Kepler 452b, which is hundreds or thousands of light-years from Earth.
To build such a “telescope”, the device will be placed at a point in the space to detect where the gravity of the Sun focuses the lens light from the remote stars. According to the Astronomers, the idea is not only viable, but it will also produce images which separate the remote star from its exponential net, an important observation that aims for future space telescopes equipped with starshed. And using the sun as a lens will result in a lot of magnification. Instead of a pixel or two, astronomers will get images of 1,000 x 1,000 pixels of Explorer 30 parse, or about 100 light years away. It translates to a motion of about 10 kilometres on the surface of the planet, which is better than the Hubble Space Telescope on Mars, which will allow us to create continents and other surface features. Such a super-telescope will also allow spectroscopy of an exoplanet, which will allow us to identify gases in our atmosphere. Exoplanet science will make a huge leap, and living planets, perhaps signs of life can also be identified. The minimum distance for the solar lensing telescope is 547 astronomical units (AU). And in reality, for the proper condition, the binoculars should probably be kept away from 2,000 AU or more. The Kuiper Belt, which includes Pluto, extends to about 55 AU. Oort cloud, the passive comet’s radius, which is the most distant objects bound from the gravity to the sun, spreads a shell from 5,000 to 100,000 AU. The nearest star, Proxima Centauri, will require a journey of 271,000 AU.
The solar gravity lens (SGL) allows for a dominant glow amplification (~ 1011 on a wavelength of 1 micron) and extreme angular resolution (~ 10-10 ARCCC) within a narrow area of the scene. A meter-range telescope with a slight coronograph for blocking solar light with 1e-6 suppression kept in the Focal area of SGL, with a few kilometre-scale resolutions on its surface, an exponent image at 30-parsec distance Can be featured. Specifically, Spectroscopic broadband SNR integration is ~ 10-6 in two weeks of time, this device provides with incredible remote sensing capabilities. A mission capable of exploiting the remarkable optical properties of SGL allows direct high-resolution imaging/spectroscopy of potentially live exponential net. Such missions can allow the exploration of exoplanets relied on decades of SGL capabilities, if not centuries, then possibly with the existing technologies.
However, there is a negative side. Focal plane devices of binoculars should be at least 550 AU from Sun (1 AU, or astronomical unit, the distance from the Sun to the Earth), which is well in the interstellar space. The only spacecraft to reach the interstellar space is Voyager 1, which includes about 137 AUs in 39 years. So we will need at least 10 times faster spacecraft, but Astronomers say that it is within reach of current technology. Other questions also need to be addressed. How long can such an exoplanet be seen, and it would be possible to repeat the measurement? In general, the advantage of the gravitational lensing method is the ability to detect planets that are almost at the same distance from their central stars because the Earth is from the sun. Other methods are biased toward the planets which are very close to their stars, which means they are less likely to be fit. But a gravitational lens telescope will be required that the celebrated star-planet system, the Sun, and Earth should be aligned perfectly. This is a major disadvantage, because possibly we will not be able to take a look at the planet after leaving that rare alignment. Even so, the possibility of building such a powerful telescope is also a mind-boggling, and its results will be nothing less than revolutionary. There can be some wonder that in our galaxy, the intelligent civilization is using the same method to see us.
