🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.8

Radius: 12.2

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.73 AU - 0.99 AU

Year: 523 Days

Day: 8.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,638,259 km

• M1: 151,692 km (0.104 R)
• M2: 539,450 km (0.116 R)
• M3: 944,561 km (0.031 R)
• M4: 1,433,596 km (0.078 R)
• M5: 1,963,322 km (0.099 R)
• M6: 2,471,506 km (0.081 R)
• M7: 3,159,058 km (0.113 R)
• M8: 4,500,652 km (0.07 R)
• M9: 5,989,001 km (0.09 R)
• M10: 6,474,745 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.7

Radius: 12.4

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.82 AU - 1.32 AU

Year: 726 Days

Day: 12.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,638,259 km

• M1: 154,235 km (0.072 R)
• M2: 654,191 km (0.118 R)
• M3: 1,177,335 km (0.084 R)
• M4: 1,649,765 km (0.12 R)
• M5: 2,181,137 km (0.046 R)
• M6: 3,014,547 km (0.112 R)
• M7: 3,802,628 km (0.061 R)
• M8: 4,840,239 km (0.109 R)
• M9: 5,845,238 km (0.111 R)
• M10: 6,603,100 km (0.094 R)
• M11: 7,745,131 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.6

Radius: 8.8

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.14 AU - 1.37 AU

Year: 917 Days

Day: 6.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,638,259 km

• M1: 109,506 km (0.119 R)
• M2: 458,368 km (0.059 R)
• M3: 886,816 km (0.118 R)
• M4: 1,525,001 km (0.047 R)
• M5: 2,209,561 km (0.096 R)
• M6: 3,123,304 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.1

Radius: 12.3

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.11 AU - 1.59 AU

Year: 1029 Days

Day: 6.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,638,259 km

• M1: 153,039 km (0.045 R)
• M2: 559,197 km (0.094 R)
• M3: 984,055 km (0.07 R)
• M4: 1,703,920 km (0.059 R)
• M5: 2,119,652 km (0.11 R)
• M6: 2,567,548 km (0.047 R)
• M7: 3,024,869 km (0.039 R)
• M8: 3,688,485 km (0.108 R)
• M9: 5,590,472 km (0.119 R)
• M10: 6,501,075 km (0.06 R)
• M11: 8,478,759 km (0.093 R)
• M12: 8,951,937 km (0.049 R)
• M13: 9,620,340 km (0.103 R)
• M14: 10,228,306 km (0.079 R)
• M15: 11,056,928 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.3

Radius: 14.2

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.73 AU - 2.03 AU

Year: 1691 Days

Day: 13.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,638,259 km

• M1: 176,525 km (0.096 R)
• M2: 708,645 km (0.082 R)
• M3: 1,267,692 km (0.116 R)
• M4: 1,757,476 km (0.115 R)
• M5: 2,413,313 km (0.09 R)
• M6: 3,823,871 km (0.116 R)
• M7: 4,510,825 km (0.065 R)
• M8: 4,978,468 km (0.089 R)
• M9: 6,254,986 km (0.091 R)
• M10: 7,103,804 km (0.096 R)
• M11: 8,626,561 km (0.073 R)
• M12: 9,318,900 km (0.094 R)
• M13: 9,812,124 km (0.057 R)
• M14: 10,288,145 km (0.049 R)
• M15: 10,815,328 km (0.114 R)
• M16: 13,311,667 km (0.032 R)
• M17: 14,237,529 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.5

Radius: 9.5

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.88 AU - 4.44 AU

Year: 4593 Days

Day: 9.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 97.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 65,638,259 km

• M1: 118,332 km (0.102 R)
• M2: 707,448 km (0.077 R)
• M3: 1,219,522 km (0.039 R)
• M4: 1,867,131 km (0.115 R)
• M5: 2,200,585 km (0.077 R)
• M6: 3,074,685 km (0.086 R)
• M7: 3,716,609 km (0.112 R)
• M8: 4,080,282 km (0.119 R)
• M9: 4,467,591 km (0.074 R)
• M10: 5,217,076 km (0.041 R)
• M11: 5,570,277 km (0.09 R)
• M12: 6,047,943 km (0.098 R)
• M13: 6,697,945 km (0.099 R)
• M14: 7,646,845 km (0.102 R)
• M15: 8,203,798 km (0.097 R)
• M16: 8,858,139 km (0.077 R)
• M17: 9,961,722 km (0.092 R)
• M18: 10,270,941 km (0.111 R)
• M19: 11,614,779 km (0.102 R)
• M20: 12,131,490 km (0.116 R)
• M21: 14,012,982 km (0.056 R)
• M22: 15,353,678 km (0.12 R)
• M23: 16,453,971 km (0.091 R)
• M24: 18,173,149 km (0.081 R)
• M25: 18,519,169 km (0.108 R)
• M26: 20,626,554 km (0.06 R)
• M27: 21,193,231 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249

Radius: 8.9

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5.5 AU - 6.22 AU

Year: 9306 Days

Day: 8.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,638,259 km

• M1: 110,702 km (0.097 R)
• M2: 475,871 km (0.096 R)
• M3: 1,226,254 km (0.078 R)
• M4: 1,838,109 km (0.111 R)
• M5: 3,593,341 km (0.098 R)
• M6: 5,458,378 km (0.069 R)
• M7: 6,784,712 km (0.117 R)
• M8: 7,235,600 km (0.118 R)
• M9: 9,797,015 km (0.058 R)
• M10: 13,765,248 km (0.045 R)
• M11: 19,578,322 km (0.102 R)
• M12: 22,407,218 km (0.108 R)
• M13: 29,768,929 km (0.114 R)
• M14: 31,546,152 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.1

Radius: 7.9

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 8.73 AU - 11.01 AU

Year: 20342 Days

Day: 17.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,638,259 km

• M1: 99,183 km (0.065 R)
• M2: 805,734 km (0.105 R)
• M3: 2,697,100 km (0.07 R)
• M4: 3,337,977 km (0.077 R)
• M5: 9,102,731 km (0.099 R)
• M6: 9,420,477 km (0.073 R)
• M7: 11,608,047 km (0.073 R)
• M8: 12,952,184 km (0.073 R)
• M9: 14,043,650 km (0.11 R)
• M10: 17,038,749 km (0.108 R)
• M11: 20,888,500 km (0.082 R)
• M12: 26,764,405 km (0.05 R)
• M13: 27,637,459 km (0.113 R)
• M14: 36,367,242 km (0.085 R)
• M15: 50,801,343 km (0.066 R)
• M16: 52,138,448 km (0.083 R)
• M17: 52,645,884 km (0.042 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 385 - 16,017 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit