🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.2

Radius: 9.6

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.69 AU - 1.05 AU

Year: 516 Days

Day: 9.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,161,352 km

• M1: 119,379 km (0.088 R)
• M2: 520,451 km (0.096 R)
• M3: 946,655 km (0.064 R)
• M4: 1,840,203 km (0.072 R)
• M5: 2,148,674 km (0.067 R)
• M6: 2,604,349 km (0.073 R)
• M7: 2,973,258 km (0.095 R)
• M8: 3,515,251 km (0.106 R)
• M9: 4,150,443 km (0.118 R)
• M10: 4,579,340 km (0.119 R)
• M11: 5,021,402 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198

Radius: 14.9

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.81 AU - 1.15 AU

Year: 617 Days

Day: 13.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,161,352 km

• M1: 185,651 km (0.092 R)
• M2: 843,433 km (0.081 R)
• M3: 1,716,037 km (0.102 R)
• M4: 2,497,836 km (0.075 R)
• M5: 3,161,901 km (0.025 R)
• M6: 3,881,616 km (0.109 R)
• M7: 4,425,255 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.8

Radius: 10.4

Gravity: 8.37 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.18 AU - 1.64 AU

Year: 1065 Days

Day: 13.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,161,352 km

• M1: 130,001 km (0.071 R)
• M2: 760,406 km (0.038 R)
• M3: 1,357,900 km (0.051 R)
• M4: 2,203,277 km (0.112 R)
• M5: 2,954,558 km (0.049 R)
• M6: 3,473,064 km (0.109 R)
• M7: 4,417,924 km (0.051 R)
• M8: 5,525,996 km (0.114 R)
• M9: 6,361,500 km (0.083 R)
• M10: 7,796,592 km (0.109 R)
• M11: 8,618,333 km (0.086 R)
• M12: 9,168,106 km (0.043 R)
• M13: 9,710,248 km (0.106 R)
• M14: 10,369,676 km (0.091 R)
• M15: 11,125,893 km (0.058 R)
• M16: 11,500,486 km (0.031 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587

Radius: 13.9

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.25 AU - 4.29 AU

Year: 4654 Days

Day: 13.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,161,352 km

• M1: 173,534 km (0.098 R)
• M2: 644,916 km (0.102 R)
• M3: 1,549,086 km (0.095 R)
• M4: 2,059,215 km (0.077 R)
• M5: 2,852,083 km (0.057 R)
• M6: 3,927,393 km (0.067 R)
• M7: 5,753,085 km (0.082 R)
• M8: 6,370,326 km (0.068 R)
• M9: 6,999,086 km (0.08 R)
• M10: 9,532,227 km (0.095 R)
• M11: 9,979,824 km (0.102 R)
• M12: 10,612,772 km (0.091 R)
• M13: 12,289,166 km (0.042 R)
• M14: 14,452,351 km (0.081 R)
• M15: 16,334,292 km (0.118 R)
• M16: 20,245,229 km (0.119 R)
• M17: 20,986,786 km (0.032 R)
• M18: 21,537,605 km (0.106 R)
• M19: 26,376,498 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.3

Radius: 9.1

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 4.71 AU - 4.97 AU

Year: 6770 Days

Day: 12.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,161,352 km

• M1: 113,246 km (0.078 R)
• M2: 507,885 km (0.113 R)
• M3: 876,195 km (0.083 R)
• M4: 1,188,405 km (0.099 R)
• M5: 1,480,121 km (0.101 R)
• M6: 1,861,446 km (0.081 R)
• M7: 2,388,928 km (0.101 R)
• M8: 2,880,058 km (0.096 R)
• M9: 3,190,175 km (0.12 R)
• M10: 3,565,665 km (0.099 R)
• M11: 4,112,296 km (0.063 R)
• M12: 4,609,559 km (0.078 R)
• M13: 5,575,961 km (0.078 R)
• M14: 7,359,168 km (0.111 R)
• M15: 8,754,467 km (0.027 R)
• M16: 9,242,755 km (0.112 R)
• M17: 11,716,655 km (0.026 R)
• M18: 12,410,639 km (0.081 R)
• M19: 13,717,826 km (0.109 R)
• M20: 14,321,154 km (0.064 R)
• M21: 16,359,126 km (0.108 R)
• M22: 16,726,987 km (0.031 R)
• M23: 22,323,443 km (0.074 R)
• M24: 28,697,509 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.8

Radius: 8

Gravity: 8.9 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.83 AU - 5.97 AU

Year: 6896 Days

Day: 7.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,161,352 km

• M1: 104,719 km (0.062 R)
• M2: 797,805 km (0.096 R)
• M3: 2,482,577 km (0.113 R)
• M4: 3,812,651 km (0.074 R)
• M5: 5,061,794 km (0.106 R)
• M6: 5,810,980 km (0.114 R)
• M7: 6,735,345 km (0.109 R)
• M8: 7,640,861 km (0.094 R)
• M9: 8,915,136 km (0.086 R)
• M10: 9,515,023 km (0.097 R)
• M11: 11,083,856 km (0.116 R)
• M12: 11,476,700 km (0.094 R)
• M13: 14,260,716 km (0.062 R)
• M14: 15,260,628 km (0.037 R)
• M15: 17,663,619 km (0.095 R)
• M16: 20,748,477 km (0.103 R)
• M17: 24,338,975 km (0.101 R)
• M18: 27,067,790 km (0.046 R)
• M19: 33,327,264 km (0.086 R)
• M20: 33,837,393 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 754.7

Radius: 7.4

Gravity: 13.78 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.03 AU - 11.27 AU

Year: 17598 Days

Day: 15.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 72,161,352 km

• M1: 92,152 km (0.111 R)
• M2: 371,003 km (0.087 R)
• M3: 1,231,639 km (0.11 R)
• M4: 1,526,347 km (0.06 R)
• M5: 1,849,778 km (0.079 R)
• M6: 2,177,247 km (0.057 R)
• M7: 2,453,555 km (0.087 R)
• M8: 2,899,656 km (0.113 R)
• M9: 3,289,208 km (0.088 R)
• M10: 4,367,061 km (0.067 R)
• M11: 6,189,462 km (0.094 R)
• M12: 8,263,188 km (0.082 R)
• M13: 10,342,898 km (0.12 R)
• M14: 11,190,070 km (0.079 R)
• M15: 12,213,918 km (0.087 R)
• M16: 14,081,049 km (0.071 R)
• M17: 16,692,878 km (0.116 R)
• M18: 19,792,845 km (0.06 R)
• M19: 21,095,544 km (0.075 R)
• M20: 25,345,320 km (0.118 R)
• M21: 26,656,845 km (0.108 R)
• M22: 29,296,200 km (0.117 R)
• M23: 29,533,612 km (0.101 R)
• M24: 56,762,369 km (0.063 R)
• M25: 64,053,769 km (0.1 R)
• M26: 65,867,793 km (0.089 R)
• M27: 66,479,947 km (0.063 R)
• M28: 68,339,299 km (0.097 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: 197 - 20,176 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit