🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.49 AU - 0.81 AU

Year: 197 Days

Day: 38.2 Hours

Environment

Temp: 114 °C

Axial Tilt: 30 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.97 AU - 4.01 AU

Year: 2456 Days

Day: 36.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 28.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.8

Radius: 8.1

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 5.02 AU - 5.72 AU

Year: 4688 Days

Day: 6.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,128,175 km

• M1: 100,829 km (0.09 R)
• M2: 424,110 km (0.107 R)
• M3: 685,457 km (0.029 R)
• M4: 966,701 km (0.073 R)
• M5: 1,315,564 km (0.117 R)
• M6: 2,721,784 km (0.098 R)
• M7: 3,507,172 km (0.103 R)
• M8: 6,123,041 km (0.065 R)
• M9: 6,425,528 km (0.082 R)
• M10: 8,055,247 km (0.04 R)
• M11: 9,496,024 km (0.111 R)
• M12: 10,319,710 km (0.064 R)
• M13: 12,203,297 km (0.046 R)
• M14: 13,176,281 km (0.058 R)
• M15: 13,732,935 km (0.073 R)
• M16: 14,570,533 km (0.085 R)
• M17: 15,497,442 km (0.052 R)
• M18: 16,232,267 km (0.073 R)
• M19: 18,513,484 km (0.077 R)
• M20: 25,444,503 km (0.108 R)
• M21: 26,228,247 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.1

Radius: 12.2

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.56 AU - 5.92 AU

Year: 5181 Days

Day: 13.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,128,175 km

• M1: 172,337 km (0.055 R)
• M2: 575,952 km (0.086 R)
• M3: 3,061,371 km (0.067 R)
• M4: 3,657,369 km (0.119 R)
• M5: 4,997,766 km (0.059 R)
• M6: 5,672,452 km (0.117 R)
• M7: 9,377,543 km (0.091 R)
• M8: 10,685,178 km (0.077 R)
• M9: 11,605,504 km (0.043 R)
• M10: 14,395,205 km (0.119 R)
• M11: 20,087,703 km (0.085 R)
• M12: 28,742,837 km (0.075 R)
• M13: 33,269,669 km (0.113 R)
• M14: 33,982,204 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.3

Radius: 11.6

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.27 AU - 7.77 AU

Year: 6272 Days

Day: 9.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,128,175 km

• M1: 144,212 km (0.119 R)
• M2: 566,228 km (0.111 R)
• M3: 1,153,250 km (0.058 R)
• M4: 1,804,150 km (0.059 R)
• M5: 2,608,538 km (0.059 R)
• M6: 3,164,893 km (0.077 R)
• M7: 4,093,147 km (0.075 R)
• M8: 4,727,442 km (0.08 R)
• M9: 5,219,919 km (0.081 R)
• M10: 7,282,724 km (0.08 R)
• M11: 7,806,466 km (0.038 R)
• M12: 8,285,328 km (0.108 R)
• M13: 16,044,671 km (0.092 R)
• M14: 19,669,876 km (0.1 R)
• M15: 20,558,188 km (0.11 R)
• M16: 22,075,410 km (0.086 R)
• M17: 23,807,903 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.3

Radius: 12.1

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 6.85 AU - 7.49 AU

Year: 7233 Days

Day: 10.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,128,175 km

• M1: 150,645 km (0.06 R)
• M2: 2,040,665 km (0.095 R)
• M3: 2,554,982 km (0.1 R)
• M4: 3,267,068 km (0.092 R)
• M5: 5,812,625 km (0.03 R)
• M6: 7,045,611 km (0.04 R)
• M7: 9,542,998 km (0.087 R)
• M8: 10,947,722 km (0.098 R)
• M9: 14,684,377 km (0.111 R)
• M10: 15,764,624 km (0.079 R)
• M11: 16,839,185 km (0.041 R)
• M12: 17,721,364 km (0.068 R)
• M13: 19,706,378 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.7

Radius: 11.6

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 6.61 AU - 8.77 AU

Year: 8034 Days

Day: 5.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,128,175 km

• M1: 155,283 km (0.088 R)
• M2: 909,854 km (0.117 R)
• M3: 1,336,657 km (0.089 R)
• M4: 2,228,859 km (0.069 R)
• M5: 3,127,343 km (0.067 R)
• M6: 3,537,690 km (0.105 R)
• M7: 6,464,274 km (0.106 R)
• M8: 8,045,224 km (0.042 R)
• M9: 11,659,808 km (0.114 R)
• M10: 14,273,432 km (0.088 R)
• M11: 16,553,752 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.8

Radius: 14.5

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 8.23 AU - 12.45 AU

Year: 12526 Days

Day: 10.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,128,175 km

• M1: 180,265 km (0.093 R)
• M2: 640,578 km (0.087 R)
• M3: 1,625,231 km (0.109 R)
• M4: 2,880,357 km (0.108 R)
• M5: 5,708,505 km (0.096 R)
• M6: 13,457,376 km (0.078 R)
• M7: 14,105,434 km (0.109 R)
• M8: 24,191,172 km (0.063 R)
• M9: 25,238,806 km (0.092 R)
• M10: 34,517,614 km (0.097 R)
• M11: 39,312,974 km (0.061 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 12,045 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit