This planetary system is located nearly 41.6 light-years away from the sun. It is a three-star system, being two in close proximity to each other. Captor A and the pair Captors B-C orbit each other around the common barycentre every210 Earth years.
It is believed the first planet to be inhabited was Gelo, since its population has a longer history since the capture than Keleshtevadaran's.
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| Planetary orbits around Captors A |
Mass: 104.1% Sol
Diametre: 127% Sol
Luminosity: 155.2% Sol (4.34 absolute magnitude)
Temperature: 5,877K (5,604°C/10,119.2°F)
Age: 1.5 billion Earth years
Radial velocity: 17.89km/s
Spectral type: G2V
This is considered the main star in the system because it is the most massive. However, the barycentre for the system is a lot colser to the contact binaries because they behave like a single gravitational object ~55% more massive than Captors A, thus making the main star follow the outside orbit of the system.
This star is orbited by three planets: Hamat, Gelo and Keléshtevadáran. Each people has its own names for the star: Shemes (Yisrelit), Shawash (Canaanite), Semas (Ekroneké), Wará (Nomaekeléet), among others.
There have been several instances of Carrington-class CMEs being shot out of the star, and they happen at a rate around 20 per century (Earth years). All three planets have considerable magnetospheres, so their loss of atmosphere is negligible.
It is a yellow dwarf, main sequence star, located nearly 41.6 light-years from the Sun.
COMPANION STAR: LEBADA/CAPTORS B
Mass: 102.8% Sol
Diametre: 88% Sol
Luminosity: 54% Sol (variable)
Temperature: 4,036K (3,736°C/6,805.4°F)
Age: 5.8 billion Earth years
Orbital period: 206.67 Earth years
Semimajor axis: 48.5AU (7.25 billion km)
Eccentricity: 0.12 (21.8AU periastron, 75.1AU apastron)
Spectral type: K0V
COMPANION STAR: CAPTORS C (contact binary with CAPTORS B)
Mass: 60.2% Sol
Diametre: 56% Sol
Luminosity: 26% Sol
Temperature: 3,548K (3,275°C/5,927°F)
Age: 5.8 billion Earth years
Orbital period: 4.912 Earth hours
Semimajor axis: 0.008AU (1.1968 million km)
Eccentricity: 0.0
Spectral type: K4V
These contact binaries behave like a W Ursae Majoris variable pair. From the planets around Captors A, they display variable brightness, caused not only by eclipsing but also by their intrinsic variability caused by the dynamics of their stellar envelopes overlapping.
The status of Captors B as a contact binary was discovered by Qedari astronomers using the (then) newly built reflector telescope at Ishmailit Peak, a few dozen km from Qedar City. Up until that point, smaller telescopes had failed to identify them as a pair; by the time of max approach, smaller telescopes could have discovered that as well, since the pair can be resolved in this scenario.
This creates constant strong stellar winds that travel all over the system, comparable to Sun's M-class eruptions (and even X2-class during the maximum of its cycle); also, the CMEs produced by them can easily be orders of magnitude stronger than the Carrington event in the solar system, and these severe CMEs can happen over a dozen times in a century (Earth years). This creates a environment impossible for life even in the B-C's goldilocks zone due to extreme radiation.
Radioastronomical studies have detected radioemissions caused by the colision of Captors A's and B-C's stellar winds, mainly caused by the deceleration of charged particles when they collide. Since the B-C pair has a stronger stellar wind, the bow shock formed is a lot closer to the A star. In at least one ocasion, a CME several orders of magnitude stronger than the Carrington event, originated at B-C, cleared the interplanetary space around Captors A of stellar wind, causing strong aurorae both on Gelo and Keleshtevadaran.
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| Bat-Lebada's first flyby |
The geloan Companion II probe, launched by a consortium of companies and universities from Yisrel, Canaan and the Kingdom of Qedar was the first spacecraft to survive the harsh environment and sent the first data from up-close, revealing the up until then unknown planet. The Companion II survived for a few weeks, until a CME headed for the planet while the probe was doing a flyby heavily distorted the planet's magnetosphere, which in turn generated strong currents in the probe and fried its circuitry.
Several missions were launched after that, and some even landed on the planet. However, the harsh environment always limit the duration of the mission, and over half of them failed during the years. Even with the most recent Geloan technology, several spacecrafts display malfunctions caused by radiation.
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| The Sun seen from the Captors System |
Different from Earth's humans, the ones who live in this stellar system have some differences:
1. Since both inhabited planets have a stronger gravity than Earth's, their bodies are a little shorter, with the average hight on Gelo being 1.60m and 1.50m on Keleshtevadaran.
2. Due to the higher gravity of these planets, they also have denser bones and stronger muscles, as well as a stronger vascular system.
3. When the Captors brought the human populations to this system, they injected humans with nanites who work together with the inmune system, fighting off infections and training the natural inmune system to counter these threats. Another characteristic of these nanites is that they can exchange information between people that are nearby, so that if someone has already faced a disease and survived, the nanites on people nearby would receive the data and adapt before these people could get infected - this is the main reason why pandemics were rare among the people in this system. Scientists independently in Gelo and Keleshtevadaran have already tried to filter them away, fearing this might be a manipulation tactics by the Captors, but this resulted in poorer health of the subjects, and all further attempts were cancelled.
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