Risi (SAF816): yellow dwarf star with 15 planets

Solar system 'Risi (SAF816)' comprises the star 'Risi' and the retinue of celestial objects gravitationally bound to it: 15 planets and their 1344 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'Risi', a yellow dwarf class star that contains about 99.8% of the system's known mass and dominates it gravitationally. Risi is located more than 1700 lightyears from the center of the galaxy.

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This solar system comprises 15 planets

	Roidi is a large terrestrial planet (7193 km radius) which orbits its star in 282 Earth days, one day on Roidi lasts 19 Earth hours. Its average temperature is 928 K (655 C), its atmosphere mainly consists of nitrogen, oxygen and it has 5 moons. Roidi, often called 'The Ever Burning,' is the innermost planet of the Risi system. The burnt world is an Alka prison planet, with Shalim being the other. when it was first discovered Roidi was already classified as uninhabitable, but when crime was sowing ... continue reading...
	Enlil is a large terrestrial planet (7865 km radius) which orbits its star in 722 Earth days, one day on Enlil lasts 19 Earth hours. Its average temperature is 531 K (258 C), its atmosphere mainly consists of nitrogen, oxygen and it has 32 moons. Of all the inner planets Enlil was seen as the most prospective as an Alkaformed world, but after scans of the world were taken it was determined that the world was far too molten to be properly Alkaformed. The only possibility for the world to be Alkaform ... continue reading...
	Vorti is a very large terrestrial planet (11919 km radius) which orbits its star in 1931 Earth days, one day on Vorti lasts 16 Earth hours. Its average temperature is 214 K (-59 C), its atmosphere mainly consists of nitrogen, oxygen and it has 42 moons.
	Psari is a small terrestrial planet (4767 km radius) which orbits its star in 3547 Earth days, one day on Psari lasts 26 Earth hours. Its average temperature is 127 K (-146 C), its atmosphere mainly consists of nitrogen and it has 2 moons. As the world was far colder then Alka many Alkani scientists searching for possible Alkaformable worlds within the Risi system believed that Psari would never make the list. They were, however, wrong; when the world was scanned it was revealed that the rin ... continue reading...
	Ocan is a small terrestrial planet (3531 km radius) which orbits its star in 6518 Earth days, one day on Ocan lasts 35 Earth hours. Its average temperature is 70 K (-203 C), its atmosphere mainly consists of nitrogen, oxygen and it has 12 moons. Roughly three and a half thousand years ago Ocan was discovered by the Alkani, natives of Alka the eighth moon of Risi. Two thousand years ago the first Ano, Alkani colony ship, reached the first planet of the system and began construction of an orbital me ... continue reading...
	Qetesh is a massive terrestrial planet (16861 km radius) which orbits its star in 26066 Earth days, one day on Qetesh lasts 15 Earth hours. Its average temperature is 1927 K (1654 C), its atmosphere mainly consists of hydrogen and it has 140 moons.
	Ardra is a medium gas giant (31235 km radius) which orbits its star in 47887 Earth days, one day on Ardra lasts 15 Earth hours. Its average temperature is 1890 K (1617 C), its atmosphere mainly consists of hydrogen, helium and it has 124 moons. Resulting from an early Alkani attempt at interstellar travel involving gravitational manipulation the worlds E'Varde, C'Zeni, CIlah, Ardra collided to form a secondary binary star which resides between to once orbits of Cllah and Ardra. A less evident res ... continue reading...
	CIlah is a large gas giant (52392 km radius) which orbits its star in 135540 Earth days, one day on CIlah lasts 15 Earth hours. Its average temperature is 1773 K (1500 C), its atmosphere mainly consists of hydrogen, helium and it has 158 moons. Resulting from an early Alkani attempt at interstellar travel involving gravitational manipulation the worlds E'Varde, C'Zeni, CIlah, Ardra collided to form a secondary binary star which resides between to once orbits of Cllah and Ardra. A less evident res ... continue reading...
	CZeni is a medium gas giant (30447 km radius) which orbits its star in 249004 Earth days, one day on CZeni lasts 15 Earth hours. Its average temperature is 1304 K (1031 C), its atmosphere mainly consists of hydrogen and it has 113 moons. Resulting from an early Alkani attempt at interstellar travel involving gravitational manipulation the worlds E'Varde, C'Zeni, CIlah, Ardra collided to form a secondary binary star which resides between to once orbits of Cllah and Ardra. A less evident res ... continue reading...
	EVarde is a large gas giant (56551 km radius) which orbits its star in 457449 Earth days, one day on EVarde lasts 15 Earth hours. Its average temperature is 1384 K (1111 C), its atmosphere mainly consists of hydrogen and it has 169 moons. Resulting from an early Alkani attempt at interstellar travel involving gravitational manipulation the worlds E'Varde, C'Zeni, CIlah, Ardra collided to form a secondary binary star which resides between to once orbits of Cllah and Ardra. A less evident res ... continue reading...
	ZRahi is a massive terrestrial planet (17832 km radius) which orbits its star in 840388 Earth days, one day on ZRahi lasts 15 Earth hours. Its average temperature is 1860 K (1587 C), its atmosphere mainly consists of hydrogen, helium and it has 60 moons.
	Ankasc is a medium terrestrial planet (6522 km radius) which orbits its star in 1543892 Earth days, one day on Ankasc lasts 20 Earth hours. Its average temperature is 1373 K (1100 C), its atmosphere mainly consists of hydrogen and it has 168 moons.
	Hozo is a large gas giant (67276 km radius) which orbits its star in 2836311 Earth days, one day on Hozo lasts 15 Earth hours. Its average temperature is 1716 K (1443 C), its atmosphere mainly consists of hydrogen and it has 177 moons.
	Racta is a medium gas giant (23150 km radius) which orbits its star in 5210636 Earth days, one day on Racta lasts 15 Earth hours. Its average temperature is 1106 K (833 C), its atmosphere mainly consists of hydrogen, helium and it has 103 moons.
	Shalim is a medium terrestrial planet (6288 km radius) which orbits its star in 6849558 Earth days, one day on Shalim lasts 21 Earth hours. Its average temperature is 1121 K (848 C), its atmosphere mainly consists of and it has 39 moons. Being the furthest planet of the Risi star system Shalim is one of is coldest bodies. This characteristic dropped the planet from the list of Alkaformable worlds and promoted the construction of the Frozen Continent Prison Complex. The Prison was later exp ... continue reading...
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Planetary Orbits

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User 'griffinsteel' updated this system june 10, 2014.

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Planetary Statistics

planet:	Roidi	Enlil	Vorti	Psari	Ocan
distance from star:	58*10⁶ km	109*10⁶ km	210*10⁶ km	316*10⁶ km	474*10⁶ km
radius:	7193 km	7865 km	11919 km	4767 km	3531 km
mass:	2977*10²¹ kg	3892*10²¹ kg	13545*10²¹ kg	866*10²¹ kg	352*10²¹ kg
surface gravity:	3.84 m/s² 0.39 Earths	4.19 m/s² 0.42 Earths	6.36 m/s² 0.65 Earths	2.54 m/s² 0.25 Earths	1.88 m/s² 0.19 Earths
escape velocity:	7.432 km/s	8.127 km/s	12.31 km/s	4.924 km/s	3.647 km/s
year:	356 Roidi days 282 Earth days	912 Enlil days 722 Earth days	2896 Vorti days 1931 Earth days	3274 Psari days 3547 Earth days	4469 Ocan days 6518 Earth days
day:	19 hrs	19 hrs	16 hrs	26 hrs	35 hrs
axial tilt:	29°	22°	13°	16°	24°
temperature:	928 K 655 C	531 K 258 C	214 K -59 C	127 K -146 C	70 K -203 C
atmosphere:	82% N2 15% O2 3% CO2 0% other	1% H2 1% He 60% N2 38% O2 0% other	82% N2 15% O2 3% CO2 0% other	88% N2 5% O2 7% CO2 0% other	57% N2 42% O2 1% CO2 0% other
moons:	5	32	42	2	12
rings:	0	0	0	3	0

planet:	Qetesh	Ardra	CIlah	CZeni	EVarde
distance from star:	1194*10⁶ km	1792*10⁶ km	3585*10⁶ km	5378*10⁶ km	8068*10⁶ km
radius:	16861 km	31235 km	52392 km	30447 km	56551 km
mass:	38347*10²¹ kg	243789*10²¹ kg	1150495*10²¹ kg	225799*10²¹ kg	1446807*10²¹ kg
surface gravity:	9.00 m/s² 0.92 Earths	16.6 m/s² 1.69 Earths	27.9 m/s² 2.85 Earths	16.2 m/s² 1.65 Earths	30.1 m/s² 3.07 Earths
escape velocity:	17.42 km/s	32.27 km/s	54.14 km/s	31.46 km/s	58.43 km/s
year:	41705 Qetesh days 26066 Earth days	76619 Ardra days 47887 Earth days	216864 CIlah days 135540 Earth days	398406 CZeni days 249004 Earth days	731918 EVarde days 457449 Earth days
day:	15 hrs	15 hrs	15 hrs	15 hrs	15 hrs
axial tilt:	3°	4°	4°	3°	23°
temperature:	1927 K 1654 C	1890 K 1617 C	1773 K 1500 C	1304 K 1031 C	1384 K 1111 C
atmosphere:	96% H2 4% He 0% other	77% H2 23% He 0% other	76% H2 24% He 0% other	95% H2 5% He 0% other	94% H2 6% He 0% other
moons:	140	124	158	113	169
rings:	16	13	10	13	7

planet:	ZRahi	Ankasc	Hozo	Racta	Shalim
distance from star:	12102*10⁶ km	18153*10⁶ km	27230*10⁶ km	40846*10⁶ km	49015*10⁶ km
radius:	17832 km	6522 km	67276 km	23150 km	6288 km
mass:	45361*10²¹ kg	2219*10²¹ kg	2435961*10²¹ kg	99252*10²¹ kg	1988*10²¹ kg
surface gravity:	9.52 m/s² 0.97 Earths	3.48 m/s² 0.35 Earths	35.9 m/s² 3.67 Earths	12.3 m/s² 1.25 Earths	3.35 m/s² 0.34 Earths
escape velocity:	18.42 km/s	6.739 km/s	69.52 km/s	23.92 km/s	6.496 km/s
year:	1344620 ZRahi days 840388 Earth days	1852670 Ankasc days 1543892 Earth days	4538097 Hozo days 2836311 Earth days	8337017 Racta days 5210636 Earth days	7828066 Shalim days 6849558 Earth days
day:	15 hrs	20 hrs	15 hrs	15 hrs	21 hrs
axial tilt:	1°	5°	5°	8°	18°
temperature:	1860 K 1587 C	1373 K 1100 C	1716 K 1443 C	1106 K 833 C	1121 K 848 C
atmosphere:	78% H2 22% He 0% other	91% H2 9% He 0% other	96% H2 4% He 0% other	81% H2 19% He 0% other	100% other
moons:	60	168	177	103	39
rings:	8	12	0	0	0

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