Project Gallery 2023

Mechováci

Gymnázium Boženy Němcové  Hradec králové – Královéhradecký kraj    Czech Republic 16 years old, 15 years old   4 / 0

TOI-560c

TOI-560c project description:

The HD73583 planetary system is relatively young. It consists of a star HD73583 and two transiting exoplanets, HD73583b and HD73583c. Both exoplanets have solid core with atmosphere made from volatile chemical compounds. So that’s the planetary system, in which the exoplanet we have studied is located, but what exactly is an exoplanet? National Aeronautics and Space Administration or NASA for short, says: “An exoplanet is any planet beyond our solar system. Most orbit other stars, but there are also free-floating exoplanets, called rogue planets that orbit the galactic centre, and are untethered to any star.” Well, that is clear definition but let us say something more about exoplanets. They are planets in universe outside of our solar system and because of that reason, they are so far away that if we could look at them, we will not see what is happening on them now but what was happening ages before. Due to this fact, we have not been on any exoplanet with human crew nor with human made object and with our technology it is not possible at all to go there in human lifespan so unfortunately, we can only dream about it in these days. Now let’s go deeper into the exoplanetary science. AI imagined planet….here and here

TOI-560c Results and Analysis

In our analysis, we haven’t described every single detail, but we have chosen to blend popularization efforts with scientific data…

Name
Median value
Lower error
Upper error
Case note
Target

Radius of the planet (in units of Earth radii)
2.65
0.071
0.071
Cheops observations
TOI-560c

Radius of the star (in units of Solar radii)
0.652
0.017
0.016
Cheops observations
TOI-560c

Mid-transit time (in units of days)
0.441
0.0051
0.0056
Cheops observations
TOI-560c

Orbital period (in units of days)
18.8797

Other observations from the archive
TOI-560c

Orbital semi-major axis (in units of AU)
0.1242

Other observations from the archive
TOI-560c

The star: The HD73583 is a dwarf star of K4V category with mass of 0.66 Suns. It has temperature of 4511 degrees Kelvin. It has two natural orbits HD73583b and HD73583c.
Our Planet: The planet that we were studying was HD73583c, a minineptune planet with heavy metallic or halfmetallic core with atmosphere made out of volatile compound, hydrogen and helium. It has mass of 5.794×1024 kg, but it is expected to lose some atmospheric weight thanks to stellar irradiation. Its orbital period around HD 73583 is 18.88 days with average distance of 18 690 894,58838 km from the star. The radius of HD73583c is 115 km with other parameters like volume and density, 2.015807452×1022 m3 and 2864.3514345557 kg/m3 respectively.
In our research, we have discovered the potential presence of water on HD73583c. Water is important, because it is considered to be the paradise of life. However, we lack substantial evidence to support the existence of actual life. In fact, we have several compelling arguments against it. The first and most significant argument is time. HD73583c is a relatively young exoplanet, which suggests that there hasn’t been sufficient time for life to develop and evolve. The second argument relates to a graph illustrating the expected composition of the exoplanet. According to the graph, the presence of carbon, which is essential for life as we know it (earth-like), the life is unlikely, because of low concentration of carbon. However, it is important to consider that this graph’s information may be inaccurate, and we currently lack knowledge about the actual composition of HD73583c.
another AI art…here and here
For the promised popularization part, we have prepared proportions. It may not sound fun, but when you realize how big this planet is compared to its star and how big the earth is compared to the sun, it seemed very interesting for our crew, so we made this table in metres…

radius of the star HD73583 :
451014000
¦
Radius of the Sun:
696 340 000

Radius of basketball ball:
0,1215
¦
Radius of basketball ball:
0,1215

ratio:
3712049383
¦
ratio:
5731193416

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Planetary radius HD73583c:
16900000
¦
Earth radius:
6371000

the radius of the planet in the ratio:
0,004552741
¦
the radius of the Earth in the ratio
0,001111636

Radius of smaller hazelnut:
0,005
¦
grain radius of kitchen lentils
0,0013

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————
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Distance of the planet from the star:
18690800000
¦
distance of the Earth from the Sun:
1,49598E+11

distance in the ratio:
5,035170083
¦
distance in the ratio:
26,10239436

We also made this analogy: if the star HD 73583 were the size of a basketball and the exoplanet HD 73583c the size of a hazelnut, the two objects would be 5 m apart, given the distance ratio. It might seem like a relatively large distance, but it’s nothing compared to the Sun and Earth. If the Sun were the size of a basketball and the Earth the size of a lens, the two objects would be 26 m apart, given the distance ratio. And that’s quite a difference.

TOI-560c Conclusions

In conclusion, our analysis has provided valuable insights into the characteristics and potential habitability of this distant world. We have determined that HD73583c is most likely a minineptune planet with a solid core, surrounded by an atmosphere made of hydrogen and helium. Our findings suggest the possibility of water presence on the planet, although further evidence is required to confirm this and determine its suitability for supporting life. Several factors indicate that the development of life on HD73583c is unlikely at this stage. The planet’s relatively young age and the low concentration of carbon, an essential element for earth-like life. Nevertheless, it is important to acknowledge the limitations of our current knowledge and the possibility of inaccuracies in the data we have used.

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