🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.21 AU - 1.81 AU

Year: 688 Days

Day: 27.7 Hours

Environment

Temp: -41 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.08 AU - 4.32 AU

Year: 2639 Days

Day: 30.5 Hours

Environment

Temp: -115 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.5

Radius: 8.6

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 4.28 AU - 6.34 AU

Year: 4538 Days

Day: 14.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,080,709 km

• M1: 110,403 km (0.082 R)
• M2: 467,643 km (0.082 R)
• M3: 972,087 km (0.082 R)
• M4: 1,329,177 km (0.112 R)
• M5: 1,622,090 km (0.027 R)
• M6: 2,241,275 km (0.096 R)
• M7: 2,924,040 km (0.114 R)
• M8: 3,943,400 km (0.102 R)
• M9: 6,086,090 km (0.07 R)
• M10: 7,059,524 km (0.057 R)
• M11: 7,470,319 km (0.102 R)
• M12: 9,053,065 km (0.108 R)
• M13: 9,962,171 km (0.082 R)
• M14: 11,654,273 km (0.099 R)
• M15: 12,138,970 km (0.064 R)
• M16: 12,867,960 km (0.109 R)
• M17: 13,917,688 km (0.076 R)
• M18: 14,971,755 km (0.076 R)
• M19: 17,694,735 km (0.057 R)
• M20: 19,662,695 km (0.073 R)
• M21: 20,160,856 km (0.05 R)
• M22: 21,053,058 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.9

Radius: 10.4

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.12 AU - 7.18 AU

Year: 5656 Days

Day: 9.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,080,709 km

• M1: 142,118 km (0.079 R)
• M2: 591,360 km (0.088 R)
• M3: 1,550,133 km (0.062 R)
• M4: 2,203,876 km (0.08 R)
• M5: 2,871,980 km (0.047 R)
• M6: 3,966,737 km (0.1 R)
• M7: 5,958,483 km (0.055 R)
• M8: 7,750,965 km (0.088 R)
• M9: 8,302,083 km (0.05 R)
• M10: 8,879,232 km (0.112 R)
• M11: 12,290,213 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.5

Radius: 10.6

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 6.08 AU - 8.22 AU

Year: 7090 Days

Day: 7.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,080,709 km

• M1: 132,245 km (0.087 R)
• M2: 520,002 km (0.065 R)
• M3: 1,035,965 km (0.073 R)
• M4: 1,406,519 km (0.11 R)
• M5: 1,854,116 km (0.111 R)
• M6: 2,410,770 km (0.1 R)
• M7: 2,869,586 km (0.057 R)
• M8: 5,038,905 km (0.102 R)
• M9: 5,498,619 km (0.074 R)
• M10: 6,893,769 km (0.077 R)
• M11: 9,315,160 km (0.054 R)
• M12: 10,369,227 km (0.096 R)
• M13: 12,209,580 km (0.12 R)
• M14: 17,030,072 km (0.063 R)
• M15: 17,601,536 km (0.098 R)
• M16: 20,205,885 km (0.109 R)
• M17: 21,171,839 km (0.111 R)
• M18: 22,643,882 km (0.086 R)
• M19: 23,335,173 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 846.4

Radius: 3.2

Gravity: 82.66 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 9.54 AU - 15.36 AU

Year: 16291 Days

Day: 21.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,080,709 km

• M1: 47,123 km (0.119 R)
• M2: 207,193 km (0.111 R)
• M3: 309,967 km (0.039 R)
• M4: 468,840 km (0.109 R)
• M5: 600,635 km (0.079 R)
• M6: 850,464 km (0.111 R)
• M7: 1,961,527 km (0.104 R)
• M8: 2,837,273 km (0.056 R)
• M9: 4,360,030 km (0.1 R)
• M10: 5,738,275 km (0.035 R)
• M11: 6,833,032 km (0.072 R)
• M12: 7,476,602 km (0.057 R)
• M13: 7,911,184 km (0.056 R)
• M14: 8,464,846 km (0.109 R)
• M15: 9,315,609 km (0.11 R)
• M16: 13,500,310 km (0.1 R)
• M17: 15,184,034 km (0.12 R)
• M18: 15,567,753 km (0.064 R)
• M19: 18,785,304 km (0.068 R)
• M20: 22,222,464 km (0.115 R)
• M21: 23,016,979 km (0.075 R)
• M22: 23,625,244 km (0.061 R)
• M23: 36,072,684 km (0.116 R)
• M24: 56,920,943 km (0.105 R)
• M25: 60,295,422 km (0.053 R)
• M26: 61,642,999 km (0.119 R)
• M27: 63,010,474 km (0.041 R)
• M28: 65,805,859 km (0.108 R)
• M29: 67,439,618 km (0.087 R)
• M30: 70,575,638 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 727.1

Radius: 4.7

Gravity: 32.92 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 13.61 AU - 21.03 AU

Year: 26732 Days

Day: 20.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 69,080,709 km

• M1: 59,989 km (0.086 R)
• M2: 233,522 km (0.064 R)
• M3: 422,614 km (0.109 R)
• M4: 1,047,035 km (0.096 R)
• M5: 1,890,468 km (0.09 R)
• M6: 2,124,589 km (0.067 R)
• M7: 2,702,635 km (0.102 R)
• M8: 3,000,185 km (0.077 R)
• M9: 3,628,646 km (0.095 R)
• M10: 4,597,741 km (0.095 R)
• M11: 4,748,984 km (0.098 R)
• M12: 6,037,022 km (0.116 R)
• M13: 6,450,810 km (0.079 R)
• M14: 8,076,041 km (0.082 R)
• M15: 8,241,048 km (0.105 R)
• M16: 9,279,556 km (0.104 R)
• M17: 10,796,030 km (0.069 R)
• M18: 11,267,712 km (0.079 R)
• M19: 11,753,007 km (0.066 R)
• M20: 15,294,438 km (0.078 R)
• M21: 16,765,134 km (0.082 R)
• M22: 16,944,203 km (0.11 R)
• M23: 18,138,891 km (0.049 R)
• M24: 32,341,713 km (0.113 R)
• M25: 34,896,695 km (0.065 R)
• M26: 39,290,834 km (0.096 R)
• M27: 42,361,180 km (0.1 R)
• M28: 46,994,077 km (0.101 R)
• M29: 51,197,478 km (0.073 R)
• M30: 61,185,828 km (0.059 R)
• M31: 62,680,161 km (0.092 R)
• M32: 72,160,179 km (0.1 R)
• M33: 76,499,564 km (0.113 R)
• M34: 78,233,104 km (0.047 R)
• M35: 87,294,546 km (0.072 R)
• M36: 88,102,375 km (0.063 R)
• M37: 93,053,616 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283.5

Radius: 8

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 17.36 AU - 17.42 AU

Year: 26894 Days

Day: 22.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,080,709 km

• M1: 99,483 km (0.11 R)
• M2: 693,835 km (0.048 R)
• M3: 1,764,507 km (0.105 R)
• M4: 2,511,449 km (0.103 R)
• M5: 3,344,709 km (0.119 R)
• M6: 3,650,637 km (0.079 R)
• M7: 4,448,442 km (0.117 R)
• M8: 6,343,548 km (0.074 R)
• M9: 7,125,047 km (0.091 R)
• M10: 8,466,043 km (0.118 R)
• M11: 11,451,567 km (0.057 R)
• M12: 13,768,539 km (0.115 R)
• M13: 14,630,073 km (0.072 R)
• M14: 16,619,276 km (0.095 R)
• M15: 21,126,361 km (0.113 R)
• M16: 21,598,641 km (0.03 R)
• M17: 22,174,444 km (0.075 R)
• M18: 22,760,418 km (0.095 R)
• M19: 25,208,288 km (0.116 R)
• M20: 28,737,751 km (0.101 R)
• M21: 29,084,668 km (0.052 R)
• M22: 37,994,568 km (0.057 R)
• M23: 45,523,829 km (0.111 R)
• M24: 48,729,113 km (0.115 R)
• M25: 65,024,061 km (0.077 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 315 - 18,187 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit