🌌 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: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590

Radius: 11.6

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.57 AU - 0.73 AU

Year: 349 Days

Day: 9.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,122,162 km

• M1: 144,512 km (0.11 R)
• M2: 539,001 km (0.069 R)
• M3: 914,193 km (0.116 R)
• M4: 1,355,506 km (0.05 R)
• M5: 1,984,565 km (0.053 R)
• M6: 2,380,551 km (0.062 R)
• M7: 2,829,644 km (0.043 R)
• M8: 3,248,518 km (0.038 R)
• M9: 3,756,253 km (0.093 R)
• M10: 4,665,060 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.6

Radius: 13.5

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.64 AU - 0.76 AU

Year: 391 Days

Day: 9.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,122,162 km

• M1: 167,849 km (0.077 R)
• M2: 616,044 km (0.075 R)
• M3: 1,061,846 km (0.057 R)
• M4: 1,659,040 km (0.052 R)
• M5: 2,260,873 km (0.067 R)
• M6: 2,758,734 km (0.03 R)
• M7: 3,329,749 km (0.064 R)
• M8: 3,797,991 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.4

Radius: 11.8

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.97 AU - 1.19 AU

Year: 748 Days

Day: 8.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,122,162 km

• M1: 146,756 km (0.091 R)
• M2: 534,364 km (0.068 R)
• M3: 1,112,410 km (0.098 R)
• M4: 1,567,337 km (0.081 R)
• M5: 1,993,092 km (0.096 R)
• M6: 2,628,135 km (0.111 R)
• M7: 4,794,163 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.2

Radius: 8.7

Gravity: 11.79 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.49 AU - 2.03 AU

Year: 1557 Days

Day: 11.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,122,162 km

• M1: 108,309 km (0.101 R)
• M2: 460,013 km (0.103 R)
• M3: 747,690 km (0.105 R)
• M4: 1,056,460 km (0.082 R)
• M5: 1,782,159 km (0.084 R)
• M6: 2,223,174 km (0.104 R)
• M7: 2,543,164 km (0.112 R)
• M8: 3,073,638 km (0.116 R)
• M9: 3,539,336 km (0.064 R)
• M10: 4,591,907 km (0.065 R)
• M11: 5,469,298 km (0.107 R)
• M12: 9,776,370 km (0.088 R)
• M13: 10,081,999 km (0.11 R)
• M14: 10,641,196 km (0.097 R)
• M15: 11,936,265 km (0.091 R)
• M16: 12,762,194 km (0.108 R)
• M17: 13,794,420 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704

Radius: 14.3

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.11 AU - 3.23 AU

Year: 2909 Days

Day: 7 Hours

Environment

Temp: -218 °C

Axial Tilt: 167.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,122,162 km

• M1: 177,872 km (0.093 R)
• M2: 724,054 km (0.051 R)
• M3: 1,333,515 km (0.115 R)
• M4: 2,071,482 km (0.06 R)
• M5: 2,580,563 km (0.107 R)
• M6: 3,681,753 km (0.079 R)
• M7: 4,704,255 km (0.115 R)
• M8: 7,309,202 km (0.056 R)
• M9: 8,236,859 km (0.08 R)
• M10: 11,123,499 km (0.062 R)
• M11: 13,203,209 km (0.115 R)
• M12: 15,276,635 km (0.108 R)
• M13: 17,063,582 km (0.072 R)
• M14: 18,463,818 km (0.081 R)
• M15: 20,366,404 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.9

Radius: 11.2

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.29 AU - 5.17 AU

Year: 6860 Days

Day: 8.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,122,162 km

• M1: 187,147 km (0.094 R)
• M2: 579,841 km (0.106 R)
• M3: 1,045,839 km (0.109 R)
• M4: 1,499,270 km (0.108 R)
• M5: 1,868,328 km (0.059 R)
• M6: 2,529,999 km (0.117 R)
• M7: 4,319,938 km (0.119 R)
• M8: 5,277,214 km (0.119 R)
• M9: 5,626,077 km (0.119 R)
• M10: 8,093,394 km (0.11 R)
• M11: 11,350,439 km (0.054 R)
• M12: 11,835,735 km (0.045 R)
• M13: 13,862,038 km (0.094 R)
• M14: 17,672,296 km (0.074 R)
• M15: 19,402,245 km (0.03 R)
• M16: 21,315,303 km (0.118 R)
• M17: 28,688,832 km (0.084 R)
• M18: 29,956,226 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.6

Radius: 12.7

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.72 AU - 5.88 AU

Year: 8137 Days

Day: 12.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,122,162 km

• M1: 157,975 km (0.087 R)
• M2: 572,960 km (0.039 R)
• M3: 1,076,357 km (0.077 R)
• M4: 1,489,995 km (0.075 R)
• M5: 2,042,909 km (0.114 R)
• M6: 2,581,910 km (0.037 R)
• M7: 3,193,615 km (0.097 R)
• M8: 3,684,895 km (0.095 R)
• M9: 4,409,996 km (0.109 R)
• M10: 4,849,514 km (0.05 R)
• M11: 7,543,921 km (0.09 R)
• M12: 8,256,905 km (0.117 R)
• M13: 11,618,519 km (0.067 R)
• M14: 12,570,111 km (0.097 R)
• M15: 13,573,015 km (0.101 R)
• M16: 17,916,888 km (0.059 R)
• M17: 20,590,950 km (0.059 R)
• M18: 23,770,054 km (0.107 R)
• M19: 28,093,433 km (0.087 R)
• M20: 29,131,493 km (0.088 R)
• M21: 32,296,684 km (0.118 R)
• M22: 34,494,427 km (0.082 R)
• M23: 35,903,938 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 796.5

Radius: 6.6

Gravity: 18.29 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 7.5 AU - 9.42 AU

Year: 16409 Days

Day: 18.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 70,122,162 km

• M1: 82,129 km (0.109 R)
• M2: 379,829 km (0.103 R)
• M3: 2,108,582 km (0.114 R)
• M4: 2,398,802 km (0.034 R)
• M5: 2,859,264 km (0.032 R)
• M6: 3,110,888 km (0.096 R)
• M7: 3,322,718 km (0.088 R)
• M8: 4,874,048 km (0.079 R)
• M9: 5,612,015 km (0.115 R)
• M10: 6,507,059 km (0.094 R)
• M11: 7,925,246 km (0.088 R)
• M12: 12,250,869 km (0.1 R)
• M13: 13,677,135 km (0.091 R)
• M14: 15,135,265 km (0.112 R)
• M15: 16,294,649 km (0.081 R)
• M16: 19,944,987 km (0.1 R)
• M17: 23,594,726 km (0.117 R)
• M18: 23,900,504 km (0.049 R)
• M19: 26,442,920 km (0.12 R)
• M20: 27,105,489 km (0.07 R)
• M21: 31,071,328 km (0.102 R)
• M22: 32,558,630 km (0.11 R)
• M23: 41,151,981 km (0.091 R)
• M24: 41,446,988 km (0.083 R)
• M25: 44,787,059 km (0.112 R)
• M26: 45,099,270 km (0.048 R)
• M27: 47,649,914 km (0.104 R)
• M28: 51,141,229 km (0.117 R)
• M29: 51,653,602 km (0.075 R)
• M30: 52,169,265 km (0.117 R)
• M31: 53,561,274 km (0.116 R)
• M32: 55,695,437 km (0.12 R)
• M33: 61,277,681 km (0.117 R)
• M34: 62,242,887 km (0.119 R)
• M35: 67,630,804 km (0.085 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 338 - 12,838 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit