🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389

Radius: 9.7

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.68 AU - 1.12 AU

Year: 589 Days

Day: 6.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,865,919 km

• M1: 120,725 km (0.116 R)
• M2: 475,422 km (0.115 R)
• M3: 897,438 km (0.102 R)
• M4: 1,336,657 km (0.057 R)
• M5: 1,672,055 km (0.113 R)
• M6: 2,237,835 km (0.102 R)
• M7: 2,585,949 km (0.116 R)
• M8: 3,058,229 km (0.048 R)
• M9: 3,440,452 km (0.086 R)
• M10: 4,026,427 km (0.105 R)
• M11: 4,329,662 km (0.105 R)
• M12: 4,662,966 km (0.113 R)
• M13: 5,267,491 km (0.082 R)
• M14: 5,681,877 km (0.104 R)
• M15: 5,993,639 km (0.034 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.5

Radius: 11.2

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.98 AU - 1.08 AU

Year: 722 Days

Day: 5.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,865,919 km

• M1: 141,220 km (0.108 R)
• M2: 550,819 km (0.093 R)
• M3: 936,483 km (0.085 R)
• M4: 1,373,608 km (0.118 R)
• M5: 2,121,597 km (0.067 R)
• M6: 2,758,734 km (0.101 R)
• M7: 3,164,444 km (0.085 R)
• M8: 3,806,667 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.3

Radius: 12.2

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.04 AU - 1.16 AU

Year: 796 Days

Day: 14.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 37,865,919 km

• M1: 151,842 km (0.059 R)
• M2: 928,255 km (0.115 R)
• M3: 1,749,547 km (0.102 R)
• M4: 2,205,073 km (0.041 R)
• M5: 2,702,785 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.5

Radius: 9.6

Gravity: 7.83 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.87 AU - 2.13 AU

Year: 1952 Days

Day: 11.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,865,919 km

• M1: 119,379 km (0.084 R)
• M2: 465,698 km (0.105 R)
• M3: 1,250,638 km (0.084 R)
• M4: 1,932,655 km (0.093 R)
• M5: 4,212,975 km (0.111 R)
• M6: 4,573,357 km (0.104 R)
• M7: 5,333,613 km (0.114 R)
• M8: 5,636,549 km (0.107 R)
• M9: 6,175,550 km (0.11 R)
• M10: 9,673,597 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.8

Radius: 8.8

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.18 AU - 3.16 AU

Year: 3011 Days

Day: 12.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,865,919 km

• M1: 109,506 km (0.025 R)
• M2: 1,207,554 km (0.069 R)
• M3: 2,046,798 km (0.052 R)
• M4: 4,094,793 km (0.097 R)
• M5: 4,407,752 km (0.091 R)
• M6: 5,351,864 km (0.114 R)
• M7: 7,433,369 km (0.069 R)
• M8: 8,172,083 km (0.101 R)
• M9: 9,155,090 km (0.093 R)
• M10: 9,658,188 km (0.099 R)
• M11: 10,756,237 km (0.096 R)
• M12: 12,576,543 km (0.061 R)
• M13: 14,638,600 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.9

Radius: 13

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.28 AU - 3.56 AU

Year: 4366 Days

Day: 7.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 37,865,919 km

• M1: 161,715 km (0.083 R)
• M2: 579,093 km (0.111 R)
• M3: 1,101,190 km (0.112 R)
• M4: 2,174,854 km (0.099 R)
• M5: 2,589,689 km (0.109 R)
• M6: 3,603,214 km (0.093 R)
• M7: 4,665,509 km (0.065 R)
• M8: 6,252,293 km (0.035 R)
• M9: 8,209,931 km (0.096 R)
• M10: 9,915,646 km (0.107 R)
• M11: 10,590,931 km (0.093 R)
• M12: 11,251,705 km (0.049 R)
• M13: 11,661,304 km (0.045 R)
• M14: 12,414,230 km (0.067 R)
• M15: 14,598,508 km (0.087 R)
• M16: 15,980,493 km (0.086 R)
• M17: 17,751,882 km (0.094 R)
• M18: 18,433,150 km (0.11 R)
• M19: 20,853,345 km (0.086 R)
• M20: 21,334,003 km (0.065 R)
• M21: 23,478,189 km (0.089 R)
• M22: 24,755,306 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.5

Radius: 11.6

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.45 AU - 5.33 AU

Year: 6349 Days

Day: 8.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,865,919 km

• M1: 156,180 km (0.1 R)
• M2: 644,019 km (0.12 R)
• M3: 1,137,841 km (0.078 R)
• M4: 1,818,213 km (0.083 R)
• M5: 2,237,236 km (0.107 R)
• M6: 2,891,577 km (0.116 R)
• M7: 3,567,760 km (0.115 R)
• M8: 5,288,434 km (0.095 R)
• M9: 5,723,764 km (0.12 R)
• M10: 6,574,078 km (0.108 R)
• M11: 8,022,335 km (0.103 R)
• M12: 8,598,586 km (0.066 R)
• M13: 9,396,691 km (0.113 R)
• M14: 10,078,259 km (0.062 R)
• M15: 11,904,101 km (0.118 R)
• M16: 12,369,500 km (0.074 R)
• M17: 13,090,262 km (0.117 R)
• M18: 14,668,670 km (0.048 R)
• M19: 15,149,776 km (0.101 R)
• M20: 15,752,057 km (0.104 R)
• M21: 17,298,451 km (0.108 R)
• M22: 23,764,669 km (0.113 R)
• M23: 25,181,510 km (0.037 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.7

Radius: 10.5

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 5.5 AU - 5.52 AU

Year: 8928 Days

Day: 9.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 37,865,919 km

• M1: 130,898 km (0.037 R)
• M2: 549,024 km (0.032 R)
• M3: 1,050,925 km (0.099 R)
• M4: 1,891,216 km (0.091 R)
• M5: 2,317,720 km (0.084 R)
• M6: 2,788,804 km (0.108 R)
• M7: 3,638,519 km (0.09 R)
• M8: 5,077,501 km (0.109 R)
• M9: 7,841,322 km (0.027 R)
• M10: 9,037,207 km (0.117 R)
• M11: 10,069,133 km (0.104 R)
• M12: 12,527,026 km (0.073 R)
• M13: 13,297,007 km (0.119 R)
• M14: 14,039,910 km (0.081 R)
• M15: 15,546,211 km (0.047 R)
• M16: 16,050,206 km (0.061 R)
• M17: 16,435,271 km (0.12 R)
• M18: 18,314,819 km (0.093 R)
• M19: 23,468,764 km (0.089 R)
• M20: 27,002,715 km (0.053 R)
• M21: 29,996,318 km (0.076 R)
• M22: 34,464,208 km (0.046 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: 283 - 14,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit