🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.6

Radius: 14.9

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.49 AU - 0.67 AU

Year: 295 Days

Day: 8.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,410,896 km

• M1: 185,352 km (0.062 R)
• M2: 672,442 km (0.12 R)
• M3: 1,265,000 km (0.041 R)
• M4: 1,735,335 km (0.066 R)
• M5: 2,294,083 km (0.112 R)
• M6: 2,834,431 km (0.046 R)
• M7: 3,523,329 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.3

Radius: 13.4

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.12 AU - 2.68 AU

Year: 2479 Days

Day: 14.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,410,896 km

• M1: 166,652 km (0.066 R)
• M2: 666,459 km (0.059 R)
• M3: 1,181,823 km (0.12 R)
• M4: 1,847,683 km (0.119 R)
• M5: 2,693,510 km (0.087 R)
• M6: 3,214,709 km (0.081 R)
• M7: 4,312,308 km (0.107 R)
• M8: 5,173,842 km (0.112 R)
• M9: 5,749,196 km (0.033 R)
• M10: 7,299,778 km (0.092 R)
• M11: 8,156,226 km (0.066 R)
• M12: 8,833,006 km (0.101 R)
• M13: 10,145,428 km (0.066 R)
• M14: 13,755,674 km (0.074 R)
• M15: 14,374,710 km (0.114 R)
• M16: 17,476,023 km (0.115 R)
• M17: 18,775,131 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.6

Radius: 11.1

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 4.26 AU - 6.34 AU

Year: 8137 Days

Day: 14.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 41,410,896 km

• M1: 138,079 km (0.097 R)
• M2: 651,948 km (0.117 R)
• M3: 1,189,153 km (0.073 R)
• M4: 2,242,771 km (0.072 R)
• M5: 2,839,368 km (0.062 R)
• M6: 3,473,064 km (0.086 R)
• M7: 4,453,678 km (0.036 R)
• M8: 6,340,407 km (0.111 R)
• M9: 7,799,435 km (0.085 R)
• M10: 8,265,881 km (0.095 R)
• M11: 13,508,987 km (0.095 R)
• M12: 15,720,343 km (0.112 R)
• M13: 22,518,818 km (0.114 R)
• M14: 25,357,138 km (0.064 R)
• M15: 26,818,410 km (0.107 R)

Planet 4 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.6

Radius: 3.6

Gravity: 69.41 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.71 AU - 6.83 AU

Year: 9243 Days

Day: 19.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 41,410,896 km

• M1: 46,076 km (0.08 R)
• M2: 175,478 km (0.064 R)
• M3: 316,100 km (0.043 R)
• M4: 467,194 km (0.104 R)
• M5: 879,635 km (0.076 R)
• M6: 1,035,217 km (0.102 R)
• M7: 1,221,167 km (0.044 R)
• M8: 1,706,164 km (0.1 R)
• M9: 2,289,895 km (0.063 R)
• M10: 2,544,959 km (0.102 R)
• M11: 3,277,540 km (0.048 R)
• M12: 3,653,030 km (0.082 R)
• M13: 5,277,364 km (0.066 R)
• M14: 6,921,145 km (0.093 R)
• M15: 7,579,526 km (0.106 R)
• M16: 10,264,658 km (0.12 R)
• M17: 11,064,109 km (0.12 R)
• M18: 11,904,251 km (0.079 R)
• M19: 12,906,855 km (0.115 R)
• M20: 13,089,365 km (0.118 R)
• M21: 13,273,669 km (0.069 R)
• M22: 13,522,152 km (0.057 R)
• M23: 13,837,055 km (0.106 R)
• M24: 14,546,897 km (0.045 R)
• M25: 14,810,937 km (0.072 R)
• M26: 19,402,694 km (0.045 R)
• M27: 21,375,441 km (0.091 R)
• M28: 34,303,689 km (0.096 R)
• M29: 35,719,484 km (0.089 R)
• M30: 38,164,960 km (0.08 R)
• M31: 39,173,549 km (0.117 R)
• M32: 42,172,238 km (0.112 R)
• M33: 42,305,979 km (0.048 R)
• M34: 43,795,824 km (0.109 R)
• M35: 43,932,855 km (0.043 R)
• M36: 44,901,053 km (0.089 R)
• M37: 46,024,683 km (0.114 R)
• M38: 46,593,454 km (0.063 R)
• M39: 48,181,884 km (0.092 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 679

Radius: 5.1

Gravity: 26.11 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 8.05 AU - 8.55 AU

Year: 15946 Days

Day: 22.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,410,896 km

• M1: 63,878 km (0.074 R)
• M2: 223,798 km (0.051 R)
• M3: 909,106 km (0.119 R)
• M4: 1,719,478 km (0.113 R)
• M5: 4,202,952 km (0.045 R)
• M6: 6,829,442 km (0.066 R)
• M7: 8,861,430 km (0.083 R)
• M8: 9,173,790 km (0.116 R)
• M9: 9,875,703 km (0.058 R)
• M10: 10,211,401 km (0.044 R)
• M11: 13,379,585 km (0.114 R)
• M12: 13,860,093 km (0.096 R)
• M13: 15,296,083 km (0.098 R)
• M14: 17,307,576 km (0.067 R)
• M15: 25,000,497 km (0.098 R)
• M16: 29,583,577 km (0.037 R)
• M17: 32,438,503 km (0.061 R)
• M18: 37,057,038 km (0.101 R)
• M19: 41,949,337 km (0.116 R)
• M20: 64,646,775 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 634.4

Radius: 4.3

Gravity: 34.31 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.54 AU - 9.34 AU

Year: 17825 Days

Day: 17.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 65.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,410,896 km

• M1: 54,753 km (0.09 R)
• M2: 254,167 km (0.093 R)
• M3: 460,462 km (0.055 R)
• M4: 2,323,704 km (0.068 R)
• M5: 5,434,591 km (0.105 R)
• M6: 5,586,882 km (0.118 R)
• M7: 5,939,933 km (0.099 R)
• M8: 6,349,532 km (0.051 R)
• M9: 6,777,831 km (0.072 R)
• M10: 14,438,289 km (0.111 R)
• M11: 14,804,504 km (0.075 R)
• M12: 17,215,424 km (0.079 R)
• M13: 19,340,611 km (0.096 R)
• M14: 25,885,219 km (0.1 R)
• M15: 26,753,485 km (0.082 R)
• M16: 31,265,506 km (0.056 R)
• M17: 32,374,326 km (0.093 R)
• M18: 32,624,154 km (0.052 R)
• M19: 35,591,278 km (0.042 R)
• M20: 45,561,976 km (0.075 R)
• M21: 50,255,161 km (0.108 R)
• M22: 55,796,266 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 76.7

Radius: 4.4

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 9.56 AU - 12.24 AU

Year: 23998 Days

Day: 17.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,410,896 km

• M1: 55,202 km (0.119 R)
• M2: 230,530 km (0.057 R)
• M3: 693,237 km (0.102 R)
• M4: 1,105,678 km (0.099 R)
• M5: 2,863,453 km (0.102 R)
• M6: 3,798,290 km (0.078 R)
• M7: 4,515,013 km (0.068 R)
• M8: 6,675,955 km (0.047 R)
• M9: 8,987,690 km (0.107 R)
• M10: 9,958,880 km (0.098 R)
• M11: 10,445,073 km (0.085 R)
• M12: 10,845,247 km (0.081 R)
• M13: 12,943,956 km (0.091 R)
• M14: 14,239,922 km (0.105 R)
• M15: 15,044,908 km (0.086 R)
• M16: 18,066,187 km (0.105 R)
• M17: 18,861,748 km (0.117 R)
• M18: 24,566,663 km (0.117 R)
• M19: 28,818,235 km (0.115 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 18,795 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit