🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.7

Radius: 11.5

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.41 AU - 0.61 AU

Year: 247 Days

Day: 6.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,217,537 km

• M1: 143,016 km (0.102 R)
• M2: 504,893 km (0.077 R)
• M3: 1,178,382 km (0.117 R)
• M4: 1,592,918 km (0.098 R)
• M5: 1,980,526 km (0.116 R)
• M6: 2,514,740 km (0.047 R)
• M7: 2,908,781 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.5

Radius: 12.5

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.45 AU - 0.61 AU

Year: 262 Days

Day: 11.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,217,537 km

• M1: 156,928 km (0.088 R)
• M2: 625,917 km (0.058 R)
• M3: 1,048,831 km (0.085 R)
• M4: 1,546,692 km (0.042 R)
• M5: 2,043,657 km (0.049 R)
• M6: 2,443,532 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.2

Radius: 10.5

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.86 AU - 0.9 AU

Year: 560 Days

Day: 11.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,217,537 km

• M1: 130,599 km (0.076 R)
• M2: 473,178 km (0.108 R)
• M3: 879,336 km (0.045 R)
• M4: 1,493,735 km (0.066 R)
• M5: 1,828,086 km (0.083 R)
• M6: 2,425,580 km (0.103 R)
• M7: 3,054,340 km (0.056 R)
• M8: 3,458,703 km (0.073 R)
• M9: 4,636,487 km (0.091 R)
• M10: 5,072,265 km (0.082 R)
• M11: 5,695,789 km (0.083 R)
• M12: 6,950,467 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.4

Radius: 9.3

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.01 AU - 1.45 AU

Year: 925 Days

Day: 5.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,217,537 km

• M1: 115,639 km (0.103 R)
• M2: 421,118 km (0.113 R)
• M3: 734,077 km (0.117 R)
• M4: 1,090,868 km (0.116 R)
• M5: 1,519,765 km (0.042 R)
• M6: 1,969,456 km (0.078 R)
• M7: 2,274,785 km (0.119 R)
• M8: 2,709,666 km (0.101 R)
• M9: 3,125,848 km (0.099 R)
• M10: 3,914,378 km (0.084 R)
• M11: 4,370,951 km (0.073 R)
• M12: 5,497,423 km (0.118 R)
• M13: 6,264,261 km (0.095 R)
• M14: 7,359,168 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.9

Radius: 9

Gravity: 11.49 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.16 AU - 1.4 AU

Year: 982 Days

Day: 9.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,217,537 km

• M1: 111,899 km (0.111 R)
• M2: 438,920 km (0.106 R)
• M3: 1,033,123 km (0.099 R)
• M4: 1,428,510 km (0.086 R)
• M5: 1,712,746 km (0.084 R)
• M6: 2,056,223 km (0.112 R)
• M7: 3,086,952 km (0.075 R)
• M8: 4,341,181 km (0.087 R)
• M9: 4,795,360 km (0.045 R)
• M10: 5,181,023 km (0.107 R)
• M11: 5,587,480 km (0.041 R)
• M12: 6,510,499 km (0.082 R)
• M13: 6,960,191 km (0.074 R)
• M14: 7,557,385 km (0.096 R)
• M15: 8,544,881 km (0.086 R)
• M16: 8,997,564 km (0.1 R)
• M17: 9,318,003 km (0.075 R)
• M18: 9,858,799 km (0.079 R)
• M19: 10,483,968 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770

Radius: 14.3

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.2 AU - 1.78 AU

Year: 1234 Days

Day: 7 Hours

Environment

Temp: -193 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,217,537 km

• M1: 177,872 km (0.094 R)
• M2: 789,428 km (0.038 R)
• M3: 1,347,278 km (0.112 R)
• M4: 1,802,056 km (0.044 R)
• M5: 2,589,838 km (0.084 R)
• M6: 3,265,273 km (0.092 R)
• M7: 3,871,742 km (0.083 R)
• M8: 6,913,965 km (0.051 R)
• M9: 7,785,971 km (0.052 R)
• M10: 8,332,452 km (0.083 R)
• M11: 9,411,352 km (0.102 R)
• M12: 10,000,468 km (0.111 R)
• M13: 11,218,793 km (0.084 R)
• M14: 11,704,837 km (0.05 R)
• M15: 12,241,145 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.1

Radius: 8.7

Gravity: 12.26 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.51 AU - 3.21 AU

Year: 3281 Days

Day: 11.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,217,537 km

• M1: 108,758 km (0.113 R)
• M2: 379,380 km (0.103 R)
• M3: 786,436 km (0.096 R)
• M4: 1,213,239 km (0.103 R)
• M5: 1,586,934 km (0.112 R)
• M6: 2,161,689 km (0.099 R)
• M7: 2,553,336 km (0.105 R)
• M8: 3,267,068 km (0.055 R)
• M9: 4,834,255 km (0.101 R)
• M10: 5,267,491 km (0.093 R)
• M11: 6,389,475 km (0.102 R)
• M12: 6,880,305 km (0.101 R)
• M13: 8,076,789 km (0.076 R)
• M14: 9,445,310 km (0.03 R)
• M15: 9,760,513 km (0.061 R)
• M16: 10,919,298 km (0.112 R)
• M17: 11,666,091 km (0.119 R)
• M18: 12,075,091 km (0.114 R)
• M19: 13,310,471 km (0.117 R)
• M20: 13,607,123 km (0.114 R)
• M21: 13,958,828 km (0.079 R)
• M22: 14,997,187 km (0.118 R)
• M23: 15,372,528 km (0.096 R)
• M24: 15,919,607 km (0.08 R)
• M25: 19,861,212 km (0.118 R)
• M26: 20,184,044 km (0.072 R)
• M27: 20,773,759 km (0.087 R)
• M28: 24,928,540 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.6

Radius: 9.9

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 3.97 AU - 5.51 AU

Year: 6999 Days

Day: 12.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,217,537 km

• M1: 123,119 km (0.081 R)
• M2: 476,619 km (0.079 R)
• M3: 1,653,804 km (0.102 R)
• M4: 2,024,957 km (0.119 R)
• M5: 3,042,521 km (0.104 R)
• M6: 4,578,144 km (0.113 R)
• M7: 5,221,564 km (0.084 R)
• M8: 6,050,635 km (0.066 R)
• M9: 6,530,396 km (0.101 R)
• M10: 7,492,460 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 154.1

Radius: 6.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 5.73 AU - 9.21 AU

Year: 13848 Days

Day: 15.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,217,537 km

• M1: 85,869 km (0.119 R)
• M2: 819,796 km (0.099 R)
• M3: 2,311,437 km (0.102 R)
• M4: 4,105,564 km (0.083 R)
• M5: 4,493,621 km (0.077 R)
• M6: 4,821,539 km (0.113 R)
• M7: 7,207,775 km (0.082 R)
• M8: 9,690,501 km (0.113 R)
• M9: 11,698,404 km (0.095 R)
• M10: 16,516,203 km (0.114 R)
• M11: 19,145,236 km (0.115 R)
• M12: 21,962,912 km (0.059 R)
• M13: 22,353,063 km (0.03 R)
• M14: 29,148,397 km (0.065 R)
• M15: 30,096,100 km (0.049 R)
• M16: 32,757,147 km (0.099 R)
• M17: 35,038,215 km (0.091 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 527 - 17,076 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit