🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.3

Radius: 14.4

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.9 AU - 1 AU

Year: 607 Days

Day: 10.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,673,175 km

• M1: 179,069 km (0.118 R)
• M2: 671,844 km (0.042 R)
• M3: 1,235,080 km (0.119 R)
• M4: 1,816,717 km (0.036 R)
• M5: 2,612,727 km (0.102 R)
• M6: 3,287,114 km (0.101 R)
• M7: 4,046,174 km (0.119 R)
• M8: 4,785,187 km (0.111 R)
• M9: 5,447,158 km (0.1 R)
• M10: 5,915,549 km (0.095 R)
• M11: 6,492,847 km (0.097 R)
• M12: 7,239,490 km (0.09 R)
• M13: 7,691,425 km (0.117 R)
• M14: 8,210,530 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.9

Radius: 12.3

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.77 AU - 1.15 AU

Year: 617 Days

Day: 9.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,673,175 km

• M1: 153,039 km (0.049 R)
• M2: 559,496 km (0.105 R)
• M3: 958,174 km (0.068 R)
• M4: 1,370,017 km (0.12 R)
• M5: 1,787,246 km (0.107 R)
• M6: 2,186,223 km (0.054 R)
• M7: 3,205,434 km (0.118 R)
• M8: 3,693,272 km (0.078 R)
• M9: 4,230,628 km (0.081 R)
• M10: 4,659,525 km (0.118 R)
• M11: 5,100,539 km (0.105 R)
• M12: 5,860,945 km (0.12 R)
• M13: 6,675,207 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.1

Radius: 8.8

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.03 AU - 1.15 AU

Year: 747 Days

Day: 14.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,673,175 km

• M1: 109,805 km (0.086 R)
• M2: 700,716 km (0.106 R)
• M3: 1,067,381 km (0.087 R)
• M4: 1,455,288 km (0.103 R)
• M5: 2,265,211 km (0.078 R)
• M6: 2,590,586 km (0.078 R)
• M7: 2,969,817 km (0.087 R)
• M8: 4,605,370 km (0.063 R)
• M9: 5,264,199 km (0.058 R)
• M10: 6,532,640 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.5

Radius: 13.7

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.93 AU - 1.29 AU

Year: 767 Days

Day: 5.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,673,175 km

• M1: 170,392 km (0.111 R)
• M2: 623,374 km (0.108 R)
• M3: 1,056,460 km (0.11 R)
• M4: 1,687,314 km (0.12 R)
• M5: 2,241,724 km (0.086 R)
• M6: 2,780,576 km (0.105 R)
• M7: 3,240,888 km (0.086 R)
• M8: 4,645,463 km (0.095 R)
• M9: 5,639,241 km (0.107 R)
• M10: 6,383,940 km (0.028 R)
• M11: 6,832,584 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.6

Radius: 13.4

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 4.28 AU - 4.4 AU

Year: 5931 Days

Day: 8.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 176.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,673,175 km

• M1: 166,652 km (0.066 R)
• M2: 586,424 km (0.119 R)
• M3: 1,187,508 km (0.055 R)
• M4: 2,109,928 km (0.071 R)
• M5: 2,961,140 km (0.106 R)
• M6: 3,602,317 km (0.113 R)
• M7: 4,246,336 km (0.083 R)
• M8: 6,297,472 km (0.097 R)
• M9: 6,923,090 km (0.106 R)
• M10: 11,326,803 km (0.109 R)
• M11: 12,073,595 km (0.052 R)
• M12: 12,712,977 km (0.1 R)
• M13: 13,812,371 km (0.052 R)
• M14: 15,446,130 km (0.047 R)
• M15: 19,094,672 km (0.046 R)
• M16: 19,587,896 km (0.068 R)
• M17: 20,471,571 km (0.053 R)
• M18: 21,184,405 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.2

Radius: 13.7

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.48 AU - 5.76 AU

Year: 6514 Days

Day: 7.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,673,175 km

• M1: 172,636 km (0.082 R)
• M2: 652,696 km (0.071 R)
• M3: 1,289,683 km (0.1 R)
• M4: 1,775,428 km (0.077 R)
• M5: 2,834,281 km (0.082 R)
• M6: 3,394,824 km (0.093 R)
• M7: 3,988,429 km (0.114 R)
• M8: 4,605,969 km (0.087 R)
• M9: 6,087,736 km (0.097 R)
• M10: 7,362,160 km (0.109 R)
• M11: 7,867,352 km (0.072 R)
• M12: 8,634,340 km (0.058 R)
• M13: 10,395,556 km (0.072 R)
• M14: 12,740,503 km (0.089 R)
• M15: 14,325,492 km (0.073 R)
• M16: 15,015,138 km (0.079 R)
• M17: 16,460,703 km (0.065 R)
• M18: 17,660,178 km (0.092 R)
• M19: 18,453,346 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.9

Radius: 8.2

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.35 AU - 5.91 AU

Year: 7622 Days

Day: 10.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,673,175 km

• M1: 103,522 km (0.039 R)
• M2: 468,989 km (0.11 R)
• M3: 931,396 km (0.106 R)
• M4: 1,450,501 km (0.087 R)
• M5: 1,728,753 km (0.06 R)
• M6: 5,079,596 km (0.119 R)
• M7: 9,185,309 km (0.098 R)
• M8: 10,748,308 km (0.101 R)
• M9: 11,469,519 km (0.115 R)
• M10: 14,277,920 km (0.068 R)
• M11: 14,622,145 km (0.047 R)
• M12: 16,997,160 km (0.059 R)
• M13: 20,767,176 km (0.097 R)
• M14: 24,320,275 km (0.114 R)
• M15: 26,069,374 km (0.11 R)
• M16: 26,931,057 km (0.099 R)
• M17: 30,284,743 km (0.035 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 134

Radius: 4.4

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.87 AU - 9.01 AU

Year: 13313 Days

Day: 24.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,673,175 km

• M1: 88,412 km (0.045 R)
• M2: 225,743 km (0.056 R)
• M3: 469,139 km (0.086 R)
• M4: 841,189 km (0.097 R)
• M5: 1,105,528 km (0.096 R)
• M6: 1,307,336 km (0.04 R)
• M7: 1,958,236 km (0.041 R)
• M8: 2,841,013 km (0.115 R)
• M9: 4,231,825 km (0.041 R)
• M10: 6,546,403 km (0.047 R)
• M11: 7,874,682 km (0.089 R)
• M12: 14,237,529 km (0.119 R)
• M13: 16,756,158 km (0.107 R)
• M14: 17,723,159 km (0.078 R)
• M15: 17,920,927 km (0.093 R)
• M16: 19,626,792 km (0.055 R)
• M17: 21,737,767 km (0.056 R)
• M18: 25,977,820 km (0.082 R)
• M19: 26,662,081 km (0.101 R)
• M20: 27,008,848 km (0.041 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 18,782 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit