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A nine-planet solar system has been discovered, one more than our own

A study conducted by an astronomer at the University of Hertfordshire in the UK has revealed that a solar system orbiting the star HD 10180 may contain more planets than our own solar system.

An artist's rendering of the system of planets orbiting HD 10180. One of the super-new Earths HD 10180j is seen in the background on the left side of the image), while the Neptune-like planet HD 10180e is in the background on the right side of the image - with its blue cloudy atmosphere. The central star and the other seven planets known since 2010 are in the distance, including the second super-Earth - HD 10180i, the third farthest from the Sun. Image: University of Hertfordshire.
An artist's rendering of the system of planets orbiting HD 10180. One of the super-new Earths HD 10180j is seen in the background on the left side of the image), while the Neptune-like planet HD 10180e is in the background on the right side of the image - with its blue cloudy atmosphere. The central star and the other seven planets known since 2010 are in the distance, including the second super-Earth - HD 10180i, the third farthest from the Sun. Image: University of Hertfordshire.

A study conducted by Mikko Toumi, an astronomer at the University of Hertfordshire in the UK revealed that a solar system orbiting the star HD 10180 may contain more planets than our own solar system.
Dr. Twomey conducted an analysis of data for the European RoPACS research network headed by the University of Herefordshire.

A seven-planet system was originally reported when it was discovered in 2010. A reanalysis of HARPS (High Accuracy Radial Velocity Planet Searcher) data now indicates that the star has nine planets. This discovery is significant because most planets discovered so far have far fewer planets.

The system is located at a distance of 130 light years from us, and therefore is not within flying distance from Earth in the foreseeable future, but as an astronomical distance it is a neighborhood of the solar system.

The study, accepted for publication in the journal Astronomy and Astrophysics, confirms the existence of the seven planets discovered earlier, and that there are likely two more planets orbiting it. Signals indicating the existence of the planets show that these are two super-Earths with a cycle period of 10 and 68 days respectively, and with such short years the conclusion is that the temperature on their surface is very high and not suitable for the existence of liquid water and certainly for life. Their mass is 1.9 and 5.1 times that of Earth, which indicates that they are made of solid rocks and are among the smallest planets discovered so far outside the solar system.

Future observations are required to confirm the existence of these planet candidates, and to make the HD 10180 system the largest solar system known to mankind.

to the notice of the researchers

 

13 תגובות

  1. If this is a solar system - it still does not mean that there are conditions for the existence of life...

    You need a certain distance from the sun, a moon that causes tides, additional planets that cause changes on the planet itself... And many other elements that cause things to shift on that planet!

    The thing with the earth is terribly fragile and any movement a little more than it should cause a natural disaster on it...

    Therefore, people, stop making problems and sit quietly before there is a disaster!

  2. Yotam Yosef and Shemdrush

    Regarding Yotam Yosef's statement according to which, given that Einstein is right, it will take us at least 130 years to reach the system in question. This statement is not true!

    According to the theory of relativity, if we move at a speed very close to the speed of light, it will take us a little more than 130 years to reach the system from the point of view of a stationary observer - for us (flying in the very fast spacecraft) time will pass at a higher speed and thus we will reach the system in a shorter time. The parameter determining this time is called the Lorentz factor (see Wikipedia). For a Lorentz factor of 130 per satellite it will take the spacecraft about a year according to its clock to reach the star.

    What's more, whoever travels in a spaceship at a speed close to the speed of light may be able to get there quickly and return, but when he returns he will not find the Earth he knows but the Earth of more than 260 years.

  3. In general, it is better that they send us unmanned probes than that we break
    the head how to reach them…..maybe we can also learn something new in the opportunity.
    Besides, maybe there are aliens who will drink water and get a short circuit?
    DA Sorry for the question: Can life exist without electricity in the body, such as
    Nervous system, etc.?

  4. Required name:
    A. The reason we are interested in water-based life is that we can understand it. In addition, a liquid environment is essential for the development of life (a matter of distances between substances and fluidity) and water has properties that allow the existence of life over time (lakes that do not freeze in winter for example).
    B. The "foreseeable future" means, given our technology and physical knowledge. As long as we don't find a better theory than Einstein's, we won't be able to travel faster than the speed of light. This means that a flight there will last, at the very least, 130 years or two long generations of crews (with the second generation having to be trained in the spacecraft itself).

  5. No need to get carried away, Mr. Shemdrosh,

    You can relax, all in all, my father said that we still don't know how to fly fast enough to get there and call to tell the company, no one said it's impossible, it just takes 130 years for the message to arrive.
    And in relation to life, you shouldn't get too excited, when we find or invent life forms that are not based on liquid water, I'm sure that science will be happy to accept them, don't forget that not long ago they didn't even know that there were nine planets and science accepted the two new ones with the necessary skepticism but without prejudice , maybe tomorrow they will find out that there was a mistake in the calculation of some figure (something got confused between gallons and liters...) and in general there is liquid water there and there lives an alien race of multi-legged people who worship the flying spaghetti monster and they are also anti-Semitic.
    In short, please calm down and return to Mr. Shemdrosh beach, there are eddies and you may be swept away.
    And before you judge the cat, you need proof! A sentence in Aramaic will not hold water in a sentence.

  6. name required,
    What are you so angry about? No one is the ruler of the universe. We know one form of life and know what is needed for it to exist. that's it. As long as there is no evidence of the existence of other forms of life, the discussion about them is irrelevant - in science circles.

    By the way, the pace of technology development is indeed impressive, but not in such a direction that brings us closer to the ability to move at the speed of light - which is what is required to reach nearby stars and solar systems such as the one in question.
    We won't get to that in decades. If you think it might be, you are flawed in understanding the meaning of speed distance and time on cosmic orders of magnitude. The human race will be extinct long before it comes close.

  7. Here they started to annoy me again..
    "The conclusion is that the temperature on their surface is very high and not suitable for the existence of liquid water and certainly for life."
    Because if we, the omniscient rulers of the universe, have not yet come across life forms independent of/based on water (or liquid water) "certainly" there are none at all, right?
    And the Earth is "surely" flat, right?
    Mediocre, fixed and stupid scientists!
    And regarding - "the system is located 130 light years away from us, and therefore is not within flying distance of the Earth in the foreseeable future", this is quite true at the moment but with a slight reservation, since as usual they forget or do not mention that the rate of development of humanity's technology increases exponentially (exponentially) in time , that's why what today seems like science fiction in terms of distance/location from Israel could in a few decades be a tourist-commercial destination. Ray Kurzweil writes about this acceleration, for those who want to read.
    In short - please be precise and do not fixate on people's paradigms!
    Batri Zozei ate Dashonara Dahad Gadia!

  8. Maybe this is not the place but there is a question that bothers me and maybe one or one of the readers can help me.

    Does it take the same amount of energy to cool water as to heat it?

  9. I protest the corruption!
    First they take down Pluto, and after we are left with only eight planets they say they are bigger
    impertinence
    Good night
    Sabdarmish Yehuda

  10. I wonder if among the billions of solar systems there is a planet in orbit around the equator
    His day and night temperature "holds water", is there a high probability of finding
    where do you live? It is also interesting if one day it will be possible to receive infrared radiation from stars
    Go to these and group those who will meet the criteria of holding water?

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