🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.2

Radius: 13.6

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.67 AU - 0.73 AU

Year: 404 Days

Day: 8.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 56,285,553 km

• M1: 169,345 km (0.048 R)
• M2: 831,914 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.7

Radius: 10.3

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.58 AU - 0.9 AU

Year: 439 Days

Day: 13.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,285,553 km

• M1: 128,205 km (0.088 R)
• M2: 600,336 km (0.082 R)
• M3: 980,315 km (0.037 R)
• M4: 1,345,034 km (0.093 R)
• M5: 1,850,974 km (0.069 R)
• M6: 2,745,570 km (0.09 R)
• M7: 3,442,995 km (0.096 R)
• M8: 3,833,894 km (0.11 R)
• M9: 4,306,025 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.1

Radius: 13.8

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.62 AU - 0.88 AU

Year: 448 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,285,553 km

• M1: 172,038 km (0.113 R)
• M2: 720,613 km (0.057 R)
• M3: 1,161,478 km (0.114 R)
• M4: 1,941,631 km (0.082 R)
• M5: 2,584,154 km (0.063 R)
• M6: 3,051,198 km (0.096 R)
• M7: 4,445,002 km (0.118 R)
• M8: 5,170,402 km (0.044 R)
• M9: 5,725,859 km (0.045 R)
• M10: 6,339,808 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.7

Radius: 13.6

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.79 AU - 1.17 AU

Year: 670 Days

Day: 11.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 56,285,553 km

• M1: 169,345 km (0.118 R)
• M2: 794,963 km (0.039 R)
• M3: 1,249,591 km (0.091 R)
• M4: 1,683,275 km (0.114 R)
• M5: 2,220,032 km (0.066 R)
• M6: 3,212,165 km (0.08 R)
• M7: 3,689,083 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.1

Radius: 9.4

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.13 AU - 1.45 AU

Year: 1011 Days

Day: 14.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,285,553 km

• M1: 116,836 km (0.117 R)
• M2: 467,643 km (0.049 R)
• M3: 969,394 km (0.097 R)
• M4: 1,343,838 km (0.095 R)
• M5: 1,902,885 km (0.102 R)
• M6: 2,582,358 km (0.086 R)
• M7: 4,012,963 km (0.065 R)
• M8: 4,692,736 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.2

Radius: 13

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.58 AU - 2.18 AU

Year: 1779 Days

Day: 8.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,285,553 km

• M1: 163,510 km (0.119 R)
• M2: 1,254,378 km (0.053 R)
• M3: 1,978,282 km (0.115 R)
• M4: 2,710,115 km (0.1 R)
• M5: 3,147,689 km (0.097 R)
• M6: 4,075,046 km (0.115 R)
• M7: 4,837,546 km (0.066 R)
• M8: 5,880,543 km (0.062 R)
• M9: 6,621,351 km (0.056 R)
• M10: 7,285,416 km (0.066 R)
• M11: 8,081,576 km (0.08 R)
• M12: 8,592,602 km (0.082 R)
• M13: 9,880,939 km (0.103 R)
• M14: 10,326,442 km (0.061 R)
• M15: 11,972,766 km (0.087 R)
• M16: 12,638,178 km (0.114 R)
• M17: 13,204,555 km (0.109 R)
• M18: 13,619,540 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.7

Radius: 14.1

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.5 AU - 2.68 AU

Year: 2877 Days

Day: 11.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,285,553 km

• M1: 175,329 km (0.106 R)
• M2: 775,216 km (0.091 R)
• M3: 1,709,305 km (0.059 R)
• M4: 2,362,599 km (0.067 R)
• M5: 4,677,028 km (0.109 R)
• M6: 5,513,579 km (0.047 R)
• M7: 7,399,559 km (0.11 R)
• M8: 8,044,476 km (0.111 R)
• M9: 9,446,956 km (0.118 R)
• M10: 10,601,702 km (0.101 R)
• M11: 12,325,518 km (0.027 R)
• M12: 13,360,586 km (0.109 R)
• M13: 14,141,038 km (0.077 R)
• M14: 15,136,013 km (0.09 R)
• M15: 16,469,379 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.7

Radius: 8.9

Gravity: 12.12 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.41 AU - 3.21 AU

Year: 3251 Days

Day: 7.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,285,553 km

• M1: 110,702 km (0.083 R)
• M2: 406,009 km (0.099 R)
• M3: 701,315 km (0.104 R)
• M4: 1,001,707 km (0.108 R)
• M5: 1,328,429 km (0.114 R)
• M6: 2,146,430 km (0.071 R)
• M7: 2,473,451 km (0.059 R)
• M8: 2,991,359 km (0.102 R)
• M9: 4,497,660 km (0.058 R)
• M10: 5,037,260 km (0.119 R)
• M11: 5,646,871 km (0.083 R)
• M12: 6,216,240 km (0.072 R)
• M13: 7,109,190 km (0.054 R)
• M14: 11,370,785 km (0.085 R)
• M15: 11,818,830 km (0.086 R)
• M16: 13,381,081 km (0.103 R)
• M17: 15,727,075 km (0.069 R)
• M18: 16,059,331 km (0.086 R)
• M19: 18,640,942 km (0.089 R)
• M20: 22,380,589 km (0.056 R)
• M21: 23,155,806 km (0.078 R)
• M22: 23,513,943 km (0.057 R)

Asteroid Belt

Center: 5.1 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 576.8

Radius: 3

Gravity: 64.09 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.7 AU - 9.08 AU

Year: 13867 Days

Day: 23.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 56,285,553 km

• M1: 37,250 km (0.068 R)
• M2: 205,248 km (0.107 R)
• M3: 387,758 km (0.112 R)
• M4: 854,353 km (0.092 R)
• M5: 969,993 km (0.063 R)
• M6: 1,144,424 km (0.085 R)
• M7: 1,298,659 km (0.081 R)
• M8: 1,729,202 km (0.09 R)
• M9: 2,750,058 km (0.107 R)
• M10: 4,416,428 km (0.084 R)
• M11: 5,162,922 km (0.109 R)
• M12: 5,476,628 km (0.077 R)
• M13: 7,498,743 km (0.086 R)
• M14: 8,223,245 km (0.115 R)
• M15: 9,142,674 km (0.063 R)
• M16: 9,915,347 km (0.109 R)
• M17: 10,128,524 km (0.107 R)
• M18: 10,619,504 km (0.118 R)
• M19: 11,648,289 km (0.108 R)
• M20: 12,493,217 km (0.083 R)
• M21: 13,769,736 km (0.099 R)
• M22: 14,921,191 km (0.054 R)
• M23: 15,201,088 km (0.075 R)
• M24: 15,342,309 km (0.099 R)
• M25: 15,916,166 km (0.118 R)
• M26: 19,083,452 km (0.06 R)
• M27: 19,746,769 km (0.065 R)
• M28: 20,857,384 km (0.111 R)
• M29: 21,650,103 km (0.088 R)
• M30: 27,559,817 km (0.063 R)
• M31: 27,875,319 km (0.038 R)
• M32: 28,087,000 km (0.088 R)
• M33: 34,825,188 km (0.085 R)
• M34: 38,893,950 km (0.082 R)
• M35: 40,227,615 km (0.111 R)
• M36: 40,633,624 km (0.118 R)
• M37: 44,989,764 km (0.094 R)
• M38: 45,573,495 km (0.08 R)
• M39: 45,720,251 km (0.092 R)
• M40: 55,279,106 km (0.101 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: 313 - 11,628 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit