🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.1

Radius: 14.6

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.49 AU - 0.61 AU

Year: 277 Days

Day: 9.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 76,298,148 km

• M1: 181,612 km (0.032 R)
• M2: 738,415 km (0.113 R)
• M3: 1,393,953 km (0.064 R)
• M4: 1,981,424 km (0.074 R)
• M5: 2,608,538 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.7

Radius: 9.4

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.8 AU - 0.88 AU

Year: 522 Days

Day: 11 Hours

Environment

Temp: -161 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,298,148 km

• M1: 116,986 km (0.103 R)
• M2: 416,480 km (0.114 R)
• M3: 837,449 km (0.104 R)
• M4: 1,319,154 km (0.086 R)
• M5: 1,732,194 km (0.118 R)
• M6: 2,028,846 km (0.064 R)
• M7: 2,875,570 km (0.047 R)
• M8: 3,782,133 km (0.041 R)
• M9: 4,301,836 km (0.107 R)
• M10: 5,500,714 km (0.107 R)
• M11: 5,934,248 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.4

Radius: 10.3

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.72 AU - 1.06 AU

Year: 569 Days

Day: 8.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,298,148 km

• M1: 128,505 km (0.038 R)
• M2: 477,965 km (0.111 R)
• M3: 885,320 km (0.063 R)
• M4: 1,278,015 km (0.103 R)
• M5: 1,683,574 km (0.087 R)
• M6: 2,110,377 km (0.096 R)
• M7: 2,808,102 km (0.116 R)
• M8: 3,238,196 km (0.088 R)
• M9: 3,891,938 km (0.079 R)
• M10: 4,522,344 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.4

Radius: 11.2

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.92 AU - 1.22 AU

Year: 751 Days

Day: 12.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,298,148 km

• M1: 141,819 km (0.05 R)
• M2: 502,948 km (0.037 R)
• M3: 944,860 km (0.07 R)
• M4: 1,317,808 km (0.109 R)
• M5: 1,714,691 km (0.11 R)
• M6: 2,366,489 km (0.082 R)
• M7: 2,924,788 km (0.118 R)
• M8: 3,308,656 km (0.038 R)
• M9: 3,843,768 km (0.052 R)
• M10: 4,354,495 km (0.112 R)
• M11: 5,160,079 km (0.078 R)
• M12: 5,666,169 km (0.094 R)
• M13: 6,976,945 km (0.107 R)
• M14: 7,908,043 km (0.094 R)
• M15: 8,763,144 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91

Radius: 10.9

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.32 AU - 1.58 AU

Year: 1184 Days

Day: 6.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,298,148 km

• M1: 160,070 km (0.045 R)
• M2: 524,041 km (0.03 R)
• M3: 998,267 km (0.107 R)
• M4: 1,405,322 km (0.062 R)
• M5: 1,884,335 km (0.111 R)
• M6: 2,675,109 km (0.066 R)
• M7: 3,220,693 km (0.105 R)
• M8: 3,649,590 km (0.096 R)
• M9: 4,830,814 km (0.113 R)
• M10: 5,427,411 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694

Radius: 12

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.98 AU - 3.32 AU

Year: 3792 Days

Day: 10.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,298,148 km

• M1: 149,299 km (0.061 R)
• M2: 579,841 km (0.05 R)
• M3: 1,280,408 km (0.073 R)
• M4: 1,777,971 km (0.035 R)
• M5: 2,510,851 km (0.065 R)
• M6: 3,009,460 km (0.063 R)
• M7: 3,455,561 km (0.112 R)
• M8: 4,389,202 km (0.095 R)
• M9: 6,329,187 km (0.037 R)
• M10: 7,324,461 km (0.101 R)
• M11: 7,757,547 km (0.119 R)
• M12: 8,278,597 km (0.095 R)
• M13: 8,822,684 km (0.109 R)
• M14: 10,474,544 km (0.078 R)
• M15: 11,373,777 km (0.102 R)
• M16: 12,323,723 km (0.067 R)
• M17: 13,179,423 km (0.102 R)
• M18: 16,096,282 km (0.1 R)
• M19: 16,887,804 km (0.071 R)
• M20: 18,244,358 km (0.046 R)
• M21: 20,446,289 km (0.109 R)
• M22: 21,509,631 km (0.115 R)
• M23: 22,960,730 km (0.071 R)

Asteroid Belt

Center: 4.78 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 521.3

Radius: 5

Gravity: 20.85 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 5.01 AU - 7.81 AU

Year: 11007 Days

Day: 19 Hours

Environment

Temp: -233 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 76,298,148 km

• M1: 62,382 km (0.069 R)
• M2: 1,222,215 km (0.12 R)
• M3: 1,617,751 km (0.11 R)
• M4: 1,798,166 km (0.117 R)
• M5: 2,199,986 km (0.063 R)
• M6: 3,066,457 km (0.095 R)
• M7: 3,950,431 km (0.067 R)
• M8: 6,998,637 km (0.069 R)
• M9: 7,729,572 km (0.093 R)
• M10: 10,025,601 km (0.1 R)
• M11: 10,277,673 km (0.082 R)
• M12: 11,712,167 km (0.116 R)
• M13: 12,680,963 km (0.086 R)
• M14: 13,950,001 km (0.114 R)
• M15: 14,712,053 km (0.072 R)
• M16: 16,597,285 km (0.082 R)
• M17: 17,164,112 km (0.111 R)
• M18: 25,470,234 km (0.118 R)
• M19: 30,112,406 km (0.031 R)
• M20: 31,921,194 km (0.101 R)
• M21: 34,825,936 km (0.066 R)
• M22: 38,023,889 km (0.117 R)
• M23: 38,760,210 km (0.081 R)
• M24: 41,930,638 km (0.119 R)
• M25: 43,779,518 km (0.067 R)
• M26: 44,860,063 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 622.7

Radius: 5.4

Gravity: 21.35 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 8.35 AU - 11.41 AU

Year: 21063 Days

Day: 24.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,298,148 km

• M1: 67,169 km (0.077 R)
• M2: 285,433 km (0.032 R)
• M3: 590,014 km (0.115 R)
• M4: 773,122 km (0.064 R)
• M5: 1,215,931 km (0.061 R)
• M6: 1,618,200 km (0.051 R)
• M7: 3,743,687 km (0.091 R)
• M8: 4,873,151 km (0.054 R)
• M9: 9,482,111 km (0.057 R)
• M10: 13,454,533 km (0.072 R)
• M11: 13,743,407 km (0.103 R)
• M12: 15,643,898 km (0.052 R)
• M13: 17,972,688 km (0.088 R)
• M14: 18,147,418 km (0.118 R)
• M15: 22,485,158 km (0.046 R)
• M16: 23,200,535 km (0.025 R)
• M17: 27,351,128 km (0.098 R)
• M18: 31,715,347 km (0.081 R)
• M19: 39,685,772 km (0.066 R)
• M20: 46,717,470 km (0.056 R)
• M21: 58,656,428 km (0.039 R)
• M22: 60,009,839 km (0.056 R)
• M23: 60,204,915 km (0.118 R)
• M24: 64,195,139 km (0.092 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 489 - 17,816 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit