🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.5

Radius: 11.8

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.52 AU - 0.8 AU

Year: 358 Days

Day: 10.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 82,820,894 km

• M1: 146,905 km (0.096 R)
• M2: 606,769 km (0.069 R)
• M3: 1,693,448 km (0.112 R)
• M4: 2,137,454 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.1

Radius: 11.7

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.61 AU - 0.93 AU

Year: 451 Days

Day: 12.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,820,894 km

• M1: 145,559 km (0.109 R)
• M2: 601,383 km (0.057 R)
• M3: 967,001 km (0.086 R)
• M4: 1,612,366 km (0.108 R)
• M5: 2,034,082 km (0.061 R)
• M6: 2,760,081 km (0.037 R)
• M7: 3,491,016 km (0.105 R)
• M8: 4,533,863 km (0.099 R)
• M9: 5,965,215 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.4

Radius: 13.4

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.69 AU - 0.91 AU

Year: 477 Days

Day: 7.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 82,820,894 km

• M1: 166,652 km (0.079 R)
• M2: 626,366 km (0.104 R)
• M3: 1,212,192 km (0.096 R)
• M4: 2,106,338 km (0.116 R)
• M5: 2,806,306 km (0.069 R)
• M6: 3,424,445 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.5

Radius: 8.2

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.43 AU - 1.75 AU

Year: 1337 Days

Day: 13 Hours

Environment

Temp: -193 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,820,894 km

• M1: 102,175 km (0.087 R)
• M2: 375,939 km (0.114 R)
• M3: 779,555 km (0.063 R)
• M4: 1,083,537 km (0.114 R)
• M5: 1,357,451 km (0.119 R)
• M6: 1,643,033 km (0.062 R)
• M7: 1,959,134 km (0.092 R)
• M8: 2,394,314 km (0.081 R)
• M9: 3,271,406 km (0.095 R)
• M10: 4,754,520 km (0.045 R)
• M11: 5,767,896 km (0.051 R)
• M12: 6,732,203 km (0.111 R)
• M13: 8,455,272 km (0.076 R)
• M14: 8,977,219 km (0.115 R)
• M15: 10,085,440 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.6

Radius: 8.6

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.11 AU - 2.69 AU

Year: 2479 Days

Day: 8.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,820,894 km

• M1: 106,962 km (0.049 R)
• M2: 424,260 km (0.108 R)
• M3: 900,430 km (0.068 R)
• M4: 1,436,289 km (0.103 R)
• M5: 2,096,465 km (0.098 R)
• M6: 2,516,835 km (0.07 R)
• M7: 2,837,872 km (0.088 R)
• M8: 3,219,047 km (0.092 R)
• M9: 4,918,479 km (0.08 R)
• M10: 5,328,676 km (0.043 R)
• M11: 5,936,193 km (0.034 R)
• M12: 6,589,188 km (0.106 R)
• M13: 7,260,134 km (0.09 R)
• M14: 8,006,777 km (0.043 R)
• M15: 10,591,828 km (0.083 R)
• M16: 12,567,867 km (0.108 R)
• M17: 12,990,630 km (0.09 R)
• M18: 16,722,798 km (0.101 R)
• M19: 17,131,350 km (0.083 R)
• M20: 17,442,065 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.6

Radius: 10.8

Gravity: 7.83 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.92 AU - 3.9 AU

Year: 4199 Days

Day: 11 Hours

Environment

Temp: -218 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,820,894 km

• M1: 140,323 km (0.081 R)
• M2: 753,524 km (0.11 R)
• M3: 1,333,216 km (0.049 R)
• M4: 1,935,647 km (0.07 R)
• M5: 2,677,503 km (0.085 R)
• M6: 3,793,802 km (0.094 R)
• M7: 4,227,935 km (0.085 R)
• M8: 4,797,753 km (0.103 R)
• M9: 5,362,186 km (0.033 R)
• M10: 5,733,488 km (0.117 R)
• M11: 6,786,657 km (0.11 R)
• M12: 7,855,085 km (0.025 R)
• M13: 8,524,984 km (0.053 R)
• M14: 9,518,165 km (0.11 R)
• M15: 10,107,131 km (0.106 R)
• M16: 10,675,603 km (0.057 R)
• M17: 11,357,919 km (0.113 R)
• M18: 12,214,816 km (0.089 R)
• M19: 13,320,045 km (0.118 R)
• M20: 15,101,157 km (0.114 R)
• M21: 17,466,449 km (0.079 R)
• M22: 21,820,495 km (0.104 R)
• M23: 24,363,509 km (0.117 R)
• M24: 29,498,456 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.6

Radius: 13.2

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 5.59 AU - 5.83 AU

Year: 9099 Days

Day: 5.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,820,894 km

• M1: 165,306 km (0.073 R)
• M2: 581,637 km (0.117 R)
• M3: 1,031,777 km (0.096 R)
• M4: 1,889,272 km (0.105 R)
• M5: 2,817,377 km (0.073 R)
• M6: 6,108,231 km (0.097 R)
• M7: 6,686,576 km (0.055 R)
• M8: 8,424,155 km (0.114 R)
• M9: 12,091,397 km (0.078 R)
• M10: 13,720,967 km (0.086 R)
• M11: 17,341,236 km (0.09 R)
• M12: 19,562,914 km (0.113 R)
• M13: 21,472,381 km (0.111 R)
• M14: 22,472,293 km (0.109 R)
• M15: 23,329,040 km (0.118 R)
• M16: 27,553,684 km (0.104 R)
• M17: 29,743,797 km (0.069 R)
• M18: 41,942,157 km (0.105 R)
• M19: 44,432,512 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 706.4

Radius: 4.6

Gravity: 33.38 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 9.54 AU - 11.26 AU

Year: 22366 Days

Day: 23.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 82,820,894 km

• M1: 57,296 km (0.12 R)
• M2: 214,972 km (0.064 R)
• M3: 377,435 km (0.117 R)
• M4: 770,279 km (0.053 R)
• M5: 1,797,269 km (0.078 R)
• M6: 2,013,737 km (0.091 R)
• M7: 2,794,638 km (0.064 R)
• M8: 3,113,281 km (0.11 R)
• M9: 3,426,390 km (0.062 R)
• M10: 3,886,553 km (0.09 R)
• M11: 5,235,776 km (0.081 R)
• M12: 7,956,512 km (0.118 R)
• M13: 8,760,152 km (0.12 R)
• M14: 8,927,103 km (0.039 R)
• M15: 10,095,463 km (0.082 R)
• M16: 10,653,014 km (0.096 R)
• M17: 11,035,835 km (0.038 R)
• M18: 11,694,514 km (0.079 R)
• M19: 12,945,302 km (0.106 R)
• M20: 13,902,280 km (0.115 R)
• M21: 14,514,135 km (0.065 R)
• M22: 18,113,460 km (0.066 R)
• M23: 21,957,227 km (0.102 R)
• M24: 22,472,891 km (0.084 R)
• M25: 23,102,399 km (0.063 R)
• M26: 27,245,811 km (0.095 R)
• M27: 36,388,485 km (0.046 R)
• M28: 38,284,937 km (0.113 R)
• M29: 38,731,786 km (0.12 R)
• M30: 42,115,241 km (0.057 R)
• M31: 43,392,807 km (0.099 R)
• M32: 48,936,605 km (0.105 R)
• M33: 49,286,963 km (0.109 R)
• M34: 52,150,566 km (0.116 R)
• M35: 52,333,075 km (0.071 R)
• M36: 53,067,601 km (0.078 R)
• M37: 57,230,909 km (0.058 R)
• M38: 58,010,614 km (0.05 R)
• M39: 70,569,504 km (0.112 R)
• M40: 77,477,784 km (0.191 R)
• M41: 81,831,681 km (0.09 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 466 - 16,281 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit