🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.2

Radius: 10.7

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.65 AU - 0.89 AU

Year: 443 Days

Day: 7.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 57 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,649,777 km

• M1: 133,441 km (0.118 R)
• M2: 470,784 km (0.096 R)
• M3: 1,159,533 km (0.112 R)
• M4: 1,694,495 km (0.114 R)
• M5: 2,252,046 km (0.06 R)
• M6: 2,779,528 km (0.117 R)
• M7: 3,182,695 km (0.086 R)
• M8: 3,570,004 km (0.103 R)
• M9: 4,047,819 km (0.113 R)

Asteroid Belt

Center: 1.28 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.7

Radius: 13.7

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.48 AU - 2.08 AU

Year: 1558 Days

Day: 10.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,649,777 km

• M1: 170,392 km (0.086 R)
• M2: 615,146 km (0.076 R)
• M3: 1,097,600 km (0.081 R)
• M4: 1,586,635 km (0.069 R)
• M5: 2,026,303 km (0.096 R)
• M6: 2,453,854 km (0.1 R)
• M7: 2,942,441 km (0.089 R)
• M8: 3,855,736 km (0.057 R)
• M9: 4,332,654 km (0.07 R)
• M10: 6,629,729 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.7

Radius: 8.3

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.28 AU - 2.68 AU

Year: 2562 Days

Day: 10.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,649,777 km

• M1: 103,223 km (0.056 R)
• M2: 446,250 km (0.062 R)
• M3: 716,873 km (0.078 R)
• M4: 1,082,789 km (0.083 R)
• M5: 1,680,134 km (0.12 R)
• M6: 2,810,944 km (0.079 R)
• M7: 4,058,590 km (0.112 R)
• M8: 4,569,617 km (0.07 R)
• M9: 5,561,450 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.7

Radius: 10.2

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.12 AU - 3.42 AU

Year: 3024 Days

Day: 9.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,649,777 km

• M1: 126,859 km (0.119 R)
• M2: 479,162 km (0.087 R)
• M3: 841,937 km (0.064 R)
• M4: 1,403,826 km (0.116 R)
• M5: 2,137,454 km (0.083 R)
• M6: 2,897,262 km (0.07 R)
• M7: 3,279,185 km (0.065 R)
• M8: 3,619,820 km (0.12 R)
• M9: 3,984,090 km (0.071 R)
• M10: 4,394,138 km (0.096 R)
• M11: 4,742,402 km (0.092 R)
• M12: 6,082,799 km (0.058 R)
• M13: 6,516,483 km (0.117 R)
• M14: 6,884,045 km (0.12 R)
• M15: 7,568,156 km (0.092 R)
• M16: 10,649,274 km (0.062 R)
• M17: 11,001,278 km (0.114 R)
• M18: 12,530,916 km (0.094 R)
• M19: 15,011,249 km (0.1 R)
• M20: 15,704,186 km (0.067 R)
• M21: 16,626,307 km (0.107 R)
• M22: 18,466,062 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52

Radius: 13.9

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.28 AU - 3.6 AU

Year: 4185 Days

Day: 14.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,649,777 km

• M1: 172,935 km (0.117 R)
• M2: 636,090 km (0.115 R)
• M3: 1,630,318 km (0.093 R)
• M4: 3,566,563 km (0.104 R)
• M5: 4,760,055 km (0.089 R)
• M6: 6,636,910 km (0.034 R)
• M7: 11,024,166 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.9

Radius: 12.2

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.76 AU - 3.92 AU

Year: 4936 Days

Day: 12.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,649,777 km

• M1: 151,692 km (0.108 R)
• M2: 784,641 km (0.053 R)
• M3: 2,072,828 km (0.102 R)
• M4: 2,781,324 km (0.092 R)
• M5: 3,404,249 km (0.108 R)
• M6: 4,300,490 km (0.119 R)
• M7: 6,284,457 km (0.075 R)
• M8: 7,129,535 km (0.112 R)
• M9: 8,120,172 km (0.04 R)
• M10: 16,364,960 km (0.04 R)
• M11: 17,537,957 km (0.104 R)
• M12: 19,209,414 km (0.031 R)
• M13: 19,985,378 km (0.04 R)
• M14: 21,393,692 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.5

Radius: 12.9

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.1 AU - 4.74 AU

Year: 5091 Days

Day: 10.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,649,777 km

• M1: 160,519 km (0.079 R)
• M2: 673,041 km (0.058 R)
• M3: 2,101,551 km (0.098 R)
• M4: 2,728,067 km (0.044 R)
• M5: 3,292,649 km (0.108 R)
• M6: 4,003,089 km (0.033 R)
• M7: 5,441,024 km (0.109 R)
• M8: 7,096,474 km (0.108 R)
• M9: 8,284,132 km (0.093 R)
• M10: 9,600,144 km (0.078 R)
• M11: 11,853,537 km (0.09 R)
• M12: 12,442,952 km (0.062 R)
• M13: 13,207,248 km (0.061 R)
• M14: 13,787,389 km (0.063 R)
• M15: 14,439,635 km (0.026 R)
• M16: 18,662,933 km (0.08 R)
• M17: 20,006,471 km (0.108 R)
• M18: 20,491,617 km (0.103 R)
• M19: 20,913,782 km (0.088 R)
• M20: 23,339,961 km (0.111 R)
• M21: 27,877,414 km (0.025 R)
• M22: 28,921,158 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297

Radius: 9.7

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.63 AU - 4.91 AU

Year: 5788 Days

Day: 7.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,649,777 km

• M1: 132,544 km (0.104 R)
• M2: 503,098 km (0.102 R)
• M3: 1,088,923 km (0.035 R)
• M4: 1,938,938 km (0.054 R)
• M5: 3,447,034 km (0.065 R)
• M6: 4,113,343 km (0.109 R)
• M7: 7,297,384 km (0.119 R)
• M8: 11,172,268 km (0.032 R)
• M9: 15,304,461 km (0.055 R)
• M10: 20,356,530 km (0.074 R)
• M11: 20,750,272 km (0.049 R)
• M12: 22,866,334 km (0.109 R)
• M13: 23,722,782 km (0.079 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520

Radius: 8.1

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.75 AU - 5.15 AU

Year: 6158 Days

Day: 5.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 170.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,649,777 km

• M1: 100,679 km (0.072 R)
• M2: 427,551 km (0.087 R)
• M3: 1,031,477 km (0.032 R)
• M4: 1,873,265 km (0.076 R)
• M5: 2,471,656 km (0.058 R)
• M6: 3,460,648 km (0.057 R)
• M7: 5,040,999 km (0.087 R)
• M8: 5,670,956 km (0.11 R)
• M9: 6,847,394 km (0.089 R)
• M10: 7,121,756 km (0.114 R)
• M11: 9,047,829 km (0.087 R)
• M12: 9,547,037 km (0.074 R)
• M13: 11,536,240 km (0.107 R)
• M14: 16,681,659 km (0.034 R)
• M15: 17,242,501 km (0.103 R)
• M16: 17,559,648 km (0.089 R)
• M17: 18,075,013 km (0.112 R)
• M18: 22,718,830 km (0.119 R)
• M19: 30,620,141 km (0.066 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 16,181 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit