🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.5

Radius: 12.5

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.83 AU - 1.17 AU

Year: 678 Days

Day: 9.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,742,460 km

• M1: 155,432 km (0.064 R)
• M2: 670,797 km (0.118 R)
• M3: 1,262,756 km (0.117 R)
• M4: 2,397,007 km (0.11 R)
• M5: 2,870,634 km (0.056 R)
• M6: 3,419,209 km (0.073 R)
• M7: 4,092,998 km (0.097 R)
• M8: 4,651,297 km (0.1 R)
• M9: 5,062,093 km (0.09 R)
• M10: 5,885,031 km (0.053 R)
• M11: 6,328,888 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.2

Radius: 14.5

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.83 AU - 1.37 AU

Year: 782 Days

Day: 7.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,742,460 km

• M1: 180,714 km (0.037 R)
• M2: 657,183 km (0.073 R)
• M3: 1,201,570 km (0.113 R)
• M4: 1,688,511 km (0.103 R)
• M5: 2,796,583 km (0.038 R)
• M6: 3,942,652 km (0.108 R)
• M7: 4,487,188 km (0.093 R)
• M8: 5,004,647 km (0.032 R)
• M9: 5,578,505 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.2

Radius: 14.7

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.31 AU - 1.47 AU

Year: 1112 Days

Day: 6.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,742,460 km

• M1: 184,604 km (0.103 R)
• M2: 1,035,367 km (0.119 R)
• M3: 1,724,415 km (0.032 R)
• M4: 3,529,163 km (0.083 R)
• M5: 3,997,554 km (0.071 R)
• M6: 5,256,420 km (0.076 R)
• M7: 6,218,484 km (0.082 R)
• M8: 7,369,341 km (0.074 R)
• M9: 8,248,378 km (0.045 R)
• M10: 8,853,800 km (0.057 R)
• M11: 9,757,072 km (0.045 R)
• M12: 10,882,348 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.6

Radius: 9.8

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.45 AU - 2.27 AU

Year: 1721 Days

Day: 6.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,742,460 km

• M1: 121,922 km (0.049 R)
• M2: 485,894 km (0.082 R)
• M3: 949,797 km (0.085 R)
• M4: 1,775,278 km (0.057 R)
• M5: 2,103,795 km (0.112 R)
• M6: 3,466,332 km (0.09 R)
• M7: 3,792,156 km (0.078 R)
• M8: 4,232,124 km (0.062 R)
• M9: 4,705,900 km (0.114 R)
• M10: 5,017,513 km (0.059 R)
• M11: 5,877,401 km (0.064 R)
• M12: 6,616,564 km (0.049 R)
• M13: 8,632,695 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.4

Radius: 11.8

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.27 AU - 3.45 AU

Year: 3281 Days

Day: 11.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,742,460 km

• M1: 151,393 km (0.098 R)
• M2: 892,202 km (0.079 R)
• M3: 1,345,184 km (0.11 R)
• M4: 5,576,709 km (0.087 R)
• M5: 7,278,984 km (0.101 R)
• M6: 7,847,904 km (0.084 R)
• M7: 9,075,056 km (0.108 R)
• M8: 10,219,479 km (0.044 R)
• M9: 11,501,982 km (0.044 R)
• M10: 11,906,943 km (0.077 R)
• M11: 12,508,776 km (0.113 R)
• M12: 13,033,714 km (0.109 R)
• M13: 15,390,180 km (0.077 R)
• M14: 18,017,568 km (0.106 R)
• M15: 20,665,749 km (0.118 R)
• M16: 24,365,005 km (0.109 R)
• M17: 25,034,306 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.2

Radius: 10.3

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 3.51 AU - 5.71 AU

Year: 6713 Days

Day: 13.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,742,460 km

• M1: 156,031 km (0.111 R)
• M2: 600,785 km (0.095 R)
• M3: 965,355 km (0.064 R)
• M4: 1,760,169 km (0.113 R)
• M5: 2,203,128 km (0.084 R)
• M6: 2,804,810 km (0.111 R)
• M7: 7,856,880 km (0.108 R)
• M8: 9,937,487 km (0.112 R)
• M9: 11,756,298 km (0.07 R)
• M10: 13,533,671 km (0.075 R)
• M11: 16,097,778 km (0.095 R)
• M12: 18,283,403 km (0.088 R)
• M13: 19,867,644 km (0.082 R)
• M14: 20,995,912 km (0.096 R)
• M15: 23,380,053 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.8

Radius: 14.3

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.72 AU - 5.82 AU

Year: 7066 Days

Day: 7.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,742,460 km

• M1: 180,415 km (0.116 R)
• M2: 1,045,390 km (0.086 R)
• M3: 2,117,857 km (0.096 R)
• M4: 2,968,471 km (0.105 R)
• M5: 3,520,786 km (0.114 R)
• M6: 4,141,467 km (0.103 R)
• M7: 6,138,449 km (0.054 R)
• M8: 13,584,384 km (0.115 R)
• M9: 14,063,247 km (0.109 R)
• M10: 16,832,752 km (0.087 R)
• M11: 19,719,243 km (0.107 R)
• M12: 24,119,515 km (0.101 R)
• M13: 25,720,960 km (0.077 R)
• M14: 29,732,128 km (0.093 R)
• M15: 31,572,481 km (0.08 R)
• M16: 37,900,770 km (0.104 R)
• M17: 42,687,603 km (0.025 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 954.7

Radius: 3.2

Gravity: 93.23 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 5.69 AU - 6.59 AU

Year: 10319 Days

Day: 15.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,742,460 km

• M1: 57,745 km (0.108 R)
• M2: 189,690 km (0.111 R)
• M3: 510,428 km (0.04 R)
• M4: 645,664 km (0.114 R)
• M5: 823,686 km (0.097 R)
• M6: 1,304,493 km (0.092 R)
• M7: 3,157,712 km (0.107 R)
• M8: 3,562,673 km (0.107 R)
• M9: 7,810,954 km (0.103 R)
• M10: 11,260,681 km (0.084 R)
• M11: 12,018,843 km (0.103 R)
• M12: 14,632,317 km (0.114 R)
• M13: 16,768,126 km (0.072 R)
• M14: 16,992,523 km (0.097 R)
• M15: 18,223,115 km (0.088 R)
• M16: 20,602,619 km (0.101 R)
• M17: 28,434,666 km (0.095 R)
• M18: 33,592,651 km (0.078 R)
• M19: 40,134,865 km (0.035 R)
• M20: 40,940,300 km (0.103 R)
• M21: 45,563,771 km (0.042 R)
• M22: 52,094,167 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 286.3

Radius: 3

Gravity: 31.81 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 7.24 AU - 11.8 AU

Year: 19923 Days

Day: 20.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,742,460 km

• M1: 40,691 km (0.097 R)
• M2: 1,229,545 km (0.104 R)
• M3: 1,809,685 km (0.096 R)
• M4: 2,447,720 km (0.064 R)
• M5: 2,772,049 km (0.065 R)
• M6: 3,051,647 km (0.089 R)
• M7: 3,375,227 km (0.074 R)
• M8: 4,390,249 km (0.092 R)
• M9: 5,414,097 km (0.072 R)
• M10: 6,191,557 km (0.061 R)
• M11: 7,918,814 km (0.093 R)
• M12: 8,149,344 km (0.089 R)
• M13: 8,672,039 km (0.043 R)
• M14: 10,817,422 km (0.072 R)
• M15: 13,421,323 km (0.087 R)
• M16: 13,682,969 km (0.108 R)
• M17: 15,899,262 km (0.063 R)
• M18: 16,265,776 km (0.096 R)
• M19: 22,552,926 km (0.113 R)
• M20: 33,050,059 km (0.053 R)
• M21: 36,483,779 km (0.092 R)
• M22: 47,135,746 km (0.11 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 490 - 15,462 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit