Centax (NHA149): yellow dwarf star with 10 planets

Solar system 'Centax (NHA149)' is a dual star system that comprises the stars 'Centax.A' and 'Centax.B' and the retinue of celestial objects gravitationally bound to them: 10 planets and their 573 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'Centax.A' and 'Centax.B' that dominate it gravitationally. 'Centax.A' is a yellow dwarf class star that contains about 63% of the system's known mass, 'Centax.B' is a yellow dwarf class star that contains about 35% of the system's known mass.

System 'Centax' is located more than 1141 lightyears from the center of the galaxy.

Secal, the fourth planet in this system, features organic life forms generally very intelligent that have developed a high tech civilisation capable of utilizing hyperspace technology to explore their own solar system as well as distant star systems. Its average temperature is 282K (9C) and it's atmosphere contains 33% of oxygen. One year on Secal lasts 1331 days, one day lasts 17 hours. It's diameter is 11188 km, 0.8 times the diameter of the Earth.

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There have been numerous scientific expeditions to the stars over the years. This area doesn't usually have a lot of activity involving civilians or combatants from either side.
The only installations in the area are ancient Progenitor platforms that were somehow capable of actually drawing energy from the stars themselves. What use this had nobody really knows, but the most commonly held theory is that they were experimenting in using energy from the stars to drive war foundries.
This appears to have been their latest project in attempting to end the war with the far-outsiders.
Other installations in the area include monitoring satellites that continuously study the stars.

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This solar system comprises 10 planets

	Majora is a small terrestrial planet (4132 km radius) which orbits its star in 87 Earth days, one day on Majora lasts 24 Earth hours. Its average temperature is 1340 K (1067 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons. This planet is home to a research station studying Centax A and B, due to its close proximity to the two. There is also a sparsely populated mining colony built deep into the planet's crust. A Progenitor artifact was discovered just beneath the surface. ... continue reading...
	Evora is a small terrestrial planet (3269 km radius) which orbits its star in 160 Earth days, one day on Evora lasts 33 Earth hours. Its average temperature is 1191 K (918 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons. Evora was the location of a top secret installation of the Ma'sono Republic before and during the Interplanetary War that was designed for the testing of new technologies that were reverse-engineered from ancient Progenitor artifacts. Notable products comi ... continue reading...
	Cipactli is a very large terrestrial planet (9932 km radius) which orbits its star in 724 Earth days, one day on Cipactli lasts 12 Earth hours. Its average temperature is 477 K (204 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 23 moons. Cipactli is the original Progenitor name for this planet. Recent studies have revealed that this planet was once home to life and conditions were very much like Secal. There is evidence of an orbital bombardment that seems to have been at sufficient magnit ... continue reading...
	Secal is a medium terrestrial planet (5594 km radius) which orbits its star in 1331 Earth days, one day on Secal lasts 17 Earth hours. Its average temperature is 282 K (9 C), its atmosphere mainly consists of nitrogen, oxygen and it has 13 moons. Secal is the home world of the Ma'sonos and location of the capital of the Ma'sono Republic. In ancient times before the rise of the Ma'sono race, an enigmatic and mysterious people, today known as the Progenitors, lived on this planet. Little has been lea ... continue reading...
	Praia is a medium gas giant (30742 km radius) which orbits its star in 6843 Earth days, one day on Praia lasts 10 Earth hours. Its average temperature is 1491 K (1218 C), its atmosphere mainly consists of hydrogen, helium and it has 62 moons. This planet is home to one of the only fully terraformed colonies of the Ma'sono. The gas giant itself has been the source of gas mining for decades and was the destination of the first interplanetary expedition launched by the Ma'sono Republic, with the 1 ... continue reading...
	Solvo is a large gas giant (75718 km radius) which orbits its star in 156288 Earth days, one day on Solvo lasts 10 Earth hours. Its average temperature is 1577 K (1304 C), its atmosphere mainly consists of hydrogen, helium and it has 170 moons. This planet is mostly used for gas mining. The space stations orbiting the planet are pretty unremarkable. They were built according to a template developed by several gas mining companies that have an interest in the area. The only thing notable about the ... continue reading...
	Trecena is a large gas giant (69946 km radius) which orbits its star in 287121 Earth days, one day on Trecena lasts 10 Earth hours. Its average temperature is 1156 K (883 C), its atmosphere mainly consists of hydrogen, helium and it has 155 moons.
	Stronum is a large gas giant (44527 km radius) which orbits its star in 527475 Earth days, one day on Stronum lasts 10 Earth hours. Its average temperature is 1954 K (1681 C), its atmosphere mainly consists of hydrogen, helium and it has 94 moons.
	Sofocor is a large terrestrial planet (8874 km radius) which orbits its star in 693383 Earth days, one day on Sofocor lasts 13 Earth hours. Its average temperature is 1267 K (994 C), its atmosphere mainly consists of and it has 21 moons. The capital of the Free Ma'sono Movement (FMM) as well as the outer system. Colonists first came to this planet during the Expansion Period. Early on, the colonists learned that to survive on Sofocor they needed to be tough. The conditions on the planet we ... continue reading...
	Miandrix is a small terrestrial planetoid (1880 km radius) which orbits its star in 911476 Earth days, one day on Miandrix lasts 80 Earth hours. Its average temperature is 1547 K (1274 C), its atmosphere mainly consists of and it has 33 moons. After the rebels fled from the moons around Secal, many settled on this world. Due to its distance from the inner worlds, Miandrix was considered the safest place to be during the majority of the Interplanetary War. In orbit, there was an early detection s ... continue reading...
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Planetary Orbits

Contributors

	User 'alpha117' updated this system february 10, 2016. view homepage add to friends give award send message
	User 'sabawet300' updated this system may 5, 2013. view homepage add to friends give award send message
	User 'revco' updated this system march 12, 2012. view homepage add to friends give award send message

Ratings

gehenna - november 15, 2015:
Hmmmm.. mountains five thousand billion kilometers high? seriously? considering an A.U. (the distance between our sun and earth is close to 150 million kms, the size of those mountains is, frankly, ridiculous. Other than that, nice system and story.

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Planetary Statistics

planet:	Majora	Evora	Cipactli	Secal	Praia
distance from star:	26*10⁶ km	40*10⁶ km	109*10⁶ km	164*10⁶ km	489*10⁶ km
radius:	4132 km	3269 km	9932 km	5594 km	30742 km
mass:	564*10²¹ kg	279*10²¹ kg	7837*10²¹ kg	1400*10²¹ kg	232426*10²¹ kg
surface gravity:	2.20 m/s² 0.22 Earths	1.74 m/s² 0.17 Earths	5.30 m/s² 0.54 Earths	2.98 m/s² 0.30 Earths	16.4 m/s² 1.67 Earths
escape velocity:	4.268 km/s	3.375 km/s	10.26 km/s	5.779 km/s	31.76 km/s
year:	87 Majora days 87 Earth days	116 Evora days 160 Earth days	1448 Cipactli days 724 Earth days	1879 Secal days 1331 Earth days	16423 Praia days 6843 Earth days
day:	24 hrs	33 hrs	12 hrs	17 hrs	10 hrs
axial tilt:	14°	15°	1°	9°	2°
temperature:	1340 K 1067 C	1191 K 918 C	477 K 204 C	282 K 9 C	1491 K 1218 C
atmosphere:	8% H2 1% He 49% N2 42% O2 0% other	74% N2 26% O2 0% other	72% N2 2% O2 26% CO2 0% other	67% N2 33% O2 0% other	84% H2 16% He 0% other
moons:	1	1	23	13	62
rings:	0	0	0	0	20

planet:	Solvo	Trecena	Stronum	Sofocor	Miandrix
distance from star:	3943*10⁶ km	5914*10⁶ km	8872*10⁶ km	10646*10⁶ km	12775*10⁶ km
radius:	75718 km	69946 km	44527 km	8874 km	1880 km
mass:	3472860*10²¹ kg	2737654*10²¹ kg	706252*10²¹ kg	5590*10²¹ kg	53*10²¹ kg
surface gravity:	40.4 m/s² 4.13 Earths	37.3 m/s² 3.81 Earths	23.7 m/s² 2.42 Earths	4.73 m/s² 0.48 Earths	1.00 m/s² 0.10 Earths
escape velocity:	78.24 km/s	72.28 km/s	46.01 km/s	9.169 km/s	1.939 km/s
year:	375091 Solvo days 156288 Earth days	689090 Trecena days 287121 Earth days	1265940 Stronum days 527475 Earth days	1280091 Sofocor days 693383 Earth days	273442 Miandrix days 911476 Earth days
day:	10 hrs	10 hrs	10 hrs	13 hrs	80 hrs
axial tilt:	2°	7°	6°	0°	280°
temperature:	1577 K 1304 C	1156 K 883 C	1954 K 1681 C	1267 K 994 C	1547 K 1274 C
atmosphere:	77% H2 23% He 0% other	77% H2 23% He 0% other	76% H2 24% He 0% other	100% other	100% other
moons:	170	155	94	21	33
rings:	8	23	1	0	5

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