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Today, Saturday, the sky over the Arab world is watched, and for several nights to come, the whale’s mouth star, known as the “Fall Star”, is seen with the naked eye. , and this year it will be Jupiter and Saturn near her on the dome of the sky.
Explained by the Jeddah Astronomical Society, that the whale’s mouth is a bluish-white second-magnitude star, which is twice the size of the sun and 20 times brighter, 25 light-years from ordinary Earth.
This star is called by other names such as “the lone star” because it is the brightest star that appears in an empty part of the sky, and it is also called “the lone star” or “l ‘lonely star’.
In the first nights of autumn.
In addition to the whale’s mouth being one of the brightest stars in the night sky, this star is so important that it was discovered years ago that it has a planetary disk, and this ring of dust that surrounds it (the mouth of the whale) may form planets one day.
In 2008, the discovery of what is believed to be a named planet (Whale Mouth – B), was heralded as the first planet outside of our solar system to be detected directly in visible light. However, subsequent observations of the supposed planet have raised questions about it, unlike other exoplanets, is bright in visible light and undetected in infrared.
The extra brightness was assumed to be caused by a massive layer or ring of dust encircling the object that may be associated with collisions, and Hubble’s observations suggest that the object may not follow an elliptical orbit, as it does. generally the planets.
Since 2014, images from the Hubble telescope have revealed the mysterious disappearance of the “whale’s mouth”.
A study published in April 2020, after analyzing all available archival data from the Hubble Telescope on the whale’s mouth b, including the most recent images taken by the Hubble Telescope, revealed several features that together paint a array of a planet-sized object that may not have In the first place, a slowly expanding cloud of dust spread through space as a result of a collision between two comet-like bodies , which occurred very shortly before the first sightings of (whale mouth b).
It is worth noting that the current period and the next month will be good to see this star and be at its best at midnight.
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