🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.9

Radius: 10.2

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.56 AU - 0.62 AU

Year: 302 Days

Day: 11.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 85,204,065 km

• M1: 131,945 km (0.073 R)
• M2: 617,091 km (0.099 R)
• M3: 1,020,706 km (0.1 R)
• M4: 1,402,181 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.9

Radius: 13.4

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.57 AU - 0.65 AU

Year: 318 Days

Day: 14.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 85,204,065 km

• M1: 166,652 km (0.109 R)
• M2: 773,421 km (0.063 R)
• M3: 1,239,269 km (0.12 R)
• M4: 1,780,514 km (0.061 R)
• M5: 3,196,159 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987

Radius: 12

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.67 AU - 0.89 AU

Year: 459 Days

Day: 8.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,204,065 km

• M1: 149,299 km (0.086 R)
• M2: 587,321 km (0.104 R)
• M3: 1,132,456 km (0.102 R)
• M4: 1,509,592 km (0.033 R)
• M5: 1,930,561 km (0.062 R)
• M6: 2,706,674 km (0.112 R)
• M7: 3,576,287 km (0.111 R)
• M8: 3,992,468 km (0.095 R)
• M9: 5,169,055 km (0.035 R)
• M10: 6,161,039 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.8

Radius: 8.2

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.15 AU - 2.21 AU

Year: 2146 Days

Day: 10.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 85,204,065 km

• M1: 102,774 km (0.11 R)
• M2: 472,280 km (0.112 R)
• M3: 888,163 km (0.073 R)
• M4: 1,486,105 km (0.075 R)
• M5: 1,791,584 km (0.092 R)
• M6: 2,157,500 km (0.099 R)
• M7: 2,428,721 km (0.106 R)
• M8: 2,755,593 km (0.117 R)
• M9: 3,459,750 km (0.114 R)
• M10: 4,233,919 km (0.112 R)
• M11: 5,516,122 km (0.116 R)
• M12: 5,878,149 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.5

Radius: 14

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.17 AU - 3.63 AU

Year: 4181 Days

Day: 12.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,204,065 km

• M1: 190,737 km (0.069 R)
• M2: 705,653 km (0.108 R)
• M3: 1,587,383 km (0.106 R)
• M4: 2,952,015 km (0.095 R)
• M5: 3,524,077 km (0.091 R)
• M6: 5,971,947 km (0.086 R)
• M7: 7,309,053 km (0.027 R)
• M8: 8,048,365 km (0.085 R)
• M9: 8,627,908 km (0.102 R)
• M10: 10,001,366 km (0.12 R)
• M11: 12,556,647 km (0.04 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 430.5

Radius: 7.3

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 7 AU - 11.1 AU

Year: 18155 Days

Day: 16.6 Hours

Environment

Temp: -243 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 85,204,065 km

• M1: 91,105 km (0.104 R)
• M2: 326,871 km (0.076 R)
• M3: 1,291,628 km (0.116 R)
• M4: 1,625,530 km (0.092 R)
• M5: 2,204,624 km (0.118 R)
• M6: 2,467,766 km (0.037 R)
• M7: 3,206,331 km (0.083 R)
• M8: 4,084,022 km (0.038 R)
• M9: 7,357,074 km (0.118 R)
• M10: 7,763,232 km (0.119 R)
• M11: 9,020,752 km (0.048 R)
• M12: 11,995,056 km (0.066 R)
• M13: 13,072,760 km (0.093 R)
• M14: 14,702,180 km (0.07 R)
• M15: 15,057,923 km (0.114 R)
• M16: 17,157,529 km (0.073 R)
• M17: 18,938,492 km (0.101 R)
• M18: 19,444,731 km (0.086 R)
• M19: 19,873,628 km (0.098 R)
• M20: 20,750,122 km (0.097 R)
• M21: 39,441,927 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431.1

Radius: 8

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 8.37 AU - 12.43 AU

Year: 22366 Days

Day: 20.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 85,204,065 km

• M1: 99,632 km (0.071 R)
• M2: 462,706 km (0.106 R)
• M3: 877,392 km (0.111 R)
• M4: 1,689,409 km (0.093 R)
• M5: 2,070,285 km (0.075 R)
• M6: 2,376,661 km (0.099 R)
• M7: 3,237,896 km (0.059 R)
• M8: 4,325,174 km (0.084 R)
• M9: 5,484,707 km (0.089 R)
• M10: 6,407,127 km (0.093 R)
• M11: 6,795,034 km (0.08 R)
• M12: 7,523,127 km (0.066 R)
• M13: 8,607,861 km (0.067 R)
• M14: 10,192,701 km (0.11 R)
• M15: 14,876,461 km (0.098 R)
• M16: 15,327,947 km (0.103 R)
• M17: 17,724,206 km (0.109 R)
• M18: 18,489,100 km (0.065 R)
• M19: 19,275,985 km (0.095 R)
• M20: 22,157,240 km (0.114 R)
• M21: 26,943,325 km (0.086 R)
• M22: 27,614,271 km (0.069 R)
• M23: 28,411,179 km (0.085 R)
• M24: 34,424,564 km (0.095 R)
• M25: 40,355,970 km (0.083 R)
• M26: 47,256,471 km (0.081 R)
• M27: 48,889,931 km (0.064 R)
• M28: 49,720,648 km (0.058 R)
• M29: 56,162,631 km (0.088 R)
• M30: 61,970,768 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 662.6

Radius: 3.3

Gravity: 60.84 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 10.35 AU - 11.51 AU

Year: 24097 Days

Day: 15.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 85,204,065 km

• M1: 41,588 km (0.111 R)
• M2: 211,382 km (0.113 R)
• M3: 521,349 km (0.036 R)
• M4: 1,090,718 km (0.082 R)
• M5: 1,680,283 km (0.095 R)
• M6: 2,505,166 km (0.027 R)
• M7: 2,652,520 km (0.104 R)
• M8: 3,046,261 km (0.103 R)
• M9: 3,915,874 km (0.076 R)
• M10: 4,532,067 km (0.045 R)
• M11: 4,977,121 km (0.087 R)
• M12: 5,532,428 km (0.116 R)
• M13: 6,083,996 km (0.032 R)
• M14: 7,148,235 km (0.107 R)
• M15: 7,545,717 km (0.106 R)
• M16: 8,996,218 km (0.094 R)
• M17: 10,432,956 km (0.111 R)
• M18: 14,757,980 km (0.063 R)
• M19: 17,889,961 km (0.051 R)
• M20: 19,466,722 km (0.114 R)
• M21: 21,744,051 km (0.103 R)
• M22: 22,053,569 km (0.077 R)
• M23: 22,575,964 km (0.032 R)
• M24: 26,466,107 km (0.092 R)
• M25: 28,261,880 km (0.099 R)
• M26: 31,170,362 km (0.114 R)
• M27: 32,360,712 km (0.078 R)
• M28: 33,856,392 km (0.063 R)
• M29: 34,411,400 km (0.106 R)
• M30: 35,539,817 km (0.116 R)
• M31: 37,721,552 km (0.119 R)
• M32: 40,455,303 km (0.117 R)
• M33: 40,611,035 km (0.104 R)
• M34: 41,080,323 km (0.031 R)
• M35: 42,349,512 km (0.074 R)
• M36: 49,799,785 km (0.101 R)
• M37: 50,697,970 km (0.074 R)
• M38: 52,526,655 km (0.118 R)
• M39: 57,485,675 km (0.075 R)
• M40: 58,672,883 km (0.104 R)
• M41: 64,854,267 km (0.093 R)
• M42: 68,101,588 km (0.095 R)
• M43: 72,368,120 km (0.09 R)
• M44: 73,057,616 km (0.167 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 373 - 14,084 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit