🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.46 AU - 0.6 AU

Year: 253 Days

Day: 43.2 Hours

Environment

Temp: -123 °C

Axial Tilt: 37.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,575,043 km

• M1: 20,944 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.7

Radius: 8.4

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.95 AU - 0.99 AU

Year: 627 Days

Day: 10.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 47,575,043 km

• M1: 104,569 km (0.108 R)
• M2: 386,112 km (0.072 R)
• M3: 870,809 km (0.036 R)
• M4: 1,745,807 km (0.114 R)
• M5: 2,242,622 km (0.115 R)
• M6: 3,954,919 km (0.089 R)
• M7: 4,224,045 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.2

Radius: 9

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.98 AU - 1.5 AU

Year: 906 Days

Day: 15 Hours

Environment

Temp: -177 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,575,043 km

• M1: 112,049 km (0.106 R)
• M2: 434,731 km (0.097 R)
• M3: 734,376 km (0.097 R)
• M4: 1,069,026 km (0.089 R)
• M5: 1,546,244 km (0.11 R)
• M6: 1,849,030 km (0.094 R)
• M7: 2,541,817 km (0.099 R)
• M8: 2,980,438 km (0.101 R)
• M9: 3,286,516 km (0.102 R)
• M10: 3,599,026 km (0.09 R)
• M11: 4,041,536 km (0.106 R)
• M12: 4,502,746 km (0.115 R)
• M13: 5,072,415 km (0.077 R)
• M14: 7,003,275 km (0.098 R)
• M15: 7,451,021 km (0.083 R)
• M16: 7,968,031 km (0.108 R)
• M17: 9,184,112 km (0.078 R)
• M18: 9,663,574 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.7

Radius: 8.6

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.84 AU - 2.3 AU

Year: 1954 Days

Day: 10 Hours

Environment

Temp: -197 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,575,043 km

• M1: 106,962 km (0.1 R)
• M2: 413,788 km (0.062 R)
• M3: 810,072 km (0.108 R)
• M4: 1,798,466 km (0.056 R)
• M5: 2,235,740 km (0.115 R)
• M6: 2,829,345 km (0.09 R)
• M7: 3,785,574 km (0.059 R)
• M8: 4,250,375 km (0.113 R)
• M9: 4,608,063 km (0.071 R)
• M10: 4,943,013 km (0.083 R)
• M11: 5,498,769 km (0.103 R)
• M12: 5,899,990 km (0.108 R)
• M13: 6,448,267 km (0.119 R)
• M14: 9,644,724 km (0.079 R)
• M15: 10,512,242 km (0.094 R)
• M16: 11,968,278 km (0.112 R)
• M17: 13,051,965 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842

Radius: 10.6

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.13 AU - 2.37 AU

Year: 2214 Days

Day: 10.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,575,043 km

• M1: 131,796 km (0.05 R)
• M2: 528,380 km (0.092 R)
• M3: 931,845 km (0.112 R)
• M4: 1,446,312 km (0.111 R)
• M5: 2,234,394 km (0.058 R)
• M6: 2,680,644 km (0.089 R)
• M7: 3,070,048 km (0.102 R)
• M8: 4,042,583 km (0.088 R)
• M9: 4,472,228 km (0.089 R)
• M10: 5,520,909 km (0.087 R)
• M11: 6,076,965 km (0.064 R)
• M12: 6,642,445 km (0.083 R)
• M13: 7,723,888 km (0.097 R)
• M14: 8,420,415 km (0.069 R)
• M15: 10,839,862 km (0.095 R)
• M16: 11,350,290 km (0.05 R)
• M17: 12,978,363 km (0.086 R)
• M18: 13,554,165 km (0.074 R)
• M19: 14,193,248 km (0.097 R)
• M20: 15,140,950 km (0.059 R)
• M21: 15,482,332 km (0.103 R)
• M22: 18,018,764 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.2

Radius: 10.1

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.75 AU - 3.45 AU

Year: 3581 Days

Day: 11.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,575,043 km

• M1: 126,261 km (0.106 R)
• M2: 557,102 km (0.051 R)
• M3: 879,935 km (0.094 R)
• M4: 1,303,446 km (0.1 R)
• M5: 1,861,746 km (0.076 R)
• M6: 2,233,496 km (0.115 R)
• M7: 2,605,696 km (0.11 R)
• M8: 3,055,537 km (0.112 R)
• M9: 4,248,430 km (0.102 R)
• M10: 6,930,869 km (0.115 R)
• M11: 7,456,706 km (0.107 R)
• M12: 9,312,019 km (0.088 R)
• M13: 9,709,051 km (0.069 R)
• M14: 10,242,069 km (0.074 R)
• M15: 10,881,300 km (0.054 R)
• M16: 11,366,895 km (0.109 R)
• M17: 13,555,362 km (0.046 R)
• M18: 13,911,405 km (0.097 R)
• M19: 14,378,450 km (0.116 R)
• M20: 15,398,707 km (0.104 R)
• M21: 17,106,816 km (0.069 R)
• M22: 17,582,986 km (0.066 R)
• M23: 18,437,339 km (0.071 R)
• M24: 19,064,453 km (0.046 R)
• M25: 19,511,751 km (0.086 R)
• M26: 20,828,661 km (0.048 R)
• M27: 22,274,076 km (0.119 R)
• M28: 23,129,476 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.8

Radius: 14.5

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 3.84 AU - 4.82 AU

Year: 5911 Days

Day: 6.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,575,043 km

• M1: 180,864 km (0.092 R)
• M2: 939,475 km (0.039 R)
• M3: 1,576,911 km (0.082 R)
• M4: 2,068,639 km (0.113 R)
• M5: 2,587,594 km (0.065 R)
• M6: 6,114,065 km (0.12 R)
• M7: 7,014,345 km (0.108 R)
• M8: 8,034,602 km (0.095 R)
• M9: 9,115,297 km (0.111 R)
• M10: 9,672,101 km (0.095 R)
• M11: 10,172,805 km (0.095 R)
• M12: 11,101,508 km (0.072 R)
• M13: 12,622,320 km (0.103 R)
• M14: 14,426,620 km (0.111 R)
• M15: 16,235,558 km (0.102 R)
• M16: 17,788,234 km (0.117 R)
• M17: 19,865,849 km (0.085 R)
• M18: 21,575,902 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.4

Radius: 10.3

Gravity: 8.74 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.64 AU - 5.1 AU

Year: 7050 Days

Day: 14.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,575,043 km

• M1: 128,355 km (0.07 R)
• M2: 504,893 km (0.112 R)
• M3: 1,170,753 km (0.081 R)
• M4: 3,818,336 km (0.107 R)
• M5: 5,331,219 km (0.03 R)
• M6: 6,397,852 km (0.107 R)
• M7: 7,641,010 km (0.08 R)
• M8: 7,965,189 km (0.097 R)
• M9: 11,105,697 km (0.114 R)
• M10: 12,836,096 km (0.103 R)
• M11: 13,237,317 km (0.057 R)
• M12: 17,583,435 km (0.032 R)
• M13: 23,642,298 km (0.097 R)
• M14: 24,159,009 km (0.108 R)
• M15: 24,771,463 km (0.118 R)
• M16: 26,763,807 km (0.077 R)
• M17: 27,608,736 km (0.098 R)
• M18: 28,763,033 km (0.037 R)
• M19: 33,703,054 km (0.108 R)
• M20: 34,909,860 km (0.113 R)
• M21: 35,243,912 km (0.07 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.9

Radius: 11.5

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 4.14 AU - 6.64 AU

Year: 8209 Days

Day: 10.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,575,043 km

• M1: 143,315 km (0.115 R)
• M2: 551,717 km (0.1 R)
• M3: 1,336,059 km (0.109 R)
• M4: 2,023,760 km (0.099 R)
• M5: 2,624,395 km (0.106 R)
• M6: 3,582,420 km (0.077 R)
• M7: 6,509,303 km (0.101 R)
• M8: 6,889,580 km (0.115 R)
• M9: 7,284,818 km (0.111 R)
• M10: 7,653,427 km (0.109 R)
• M11: 8,164,304 km (0.115 R)
• M12: 9,445,460 km (0.099 R)
• M13: 12,059,832 km (0.1 R)
• M14: 15,255,392 km (0.097 R)
• M15: 16,692,729 km (0.046 R)
• M16: 17,263,295 km (0.07 R)
• M17: 21,545,235 km (0.104 R)
• M18: 23,528,903 km (0.09 R)
• M19: 24,156,017 km (0.034 R)
• M20: 30,523,351 km (0.112 R)
• M21: 36,122,650 km (0.085 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: 291 - 17,591 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit