🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.4

Radius: 8.5

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.5 AU - 0.82 AU

Year: 358 Days

Day: 12.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,848,120 km

• M1: 105,766 km (0.086 R)
• M2: 372,200 km (0.078 R)
• M3: 693,237 km (0.109 R)
• M4: 978,968 km (0.081 R)
• M5: 1,291,179 km (0.036 R)
• M6: 1,564,345 km (0.106 R)
• M7: 2,206,718 km (0.08 R)
• M8: 2,532,692 km (0.055 R)
• M9: 2,825,754 km (0.103 R)
• M10: 3,313,294 km (0.071 R)
• M11: 3,643,007 km (0.081 R)
• M12: 3,913,331 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.9

Radius: 11.3

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.87 AU - 1.31 AU

Year: 759 Days

Day: 8.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 23,848,120 km

• M1: 140,772 km (0.078 R)
• M2: 596,297 km (0.078 R)
• M3: 1,033,422 km (0.034 R)
• M4: 1,390,961 km (0.079 R)
• M5: 2,411,518 km (0.118 R)
• M6: 2,822,164 km (0.1 R)
• M7: 3,442,845 km (0.09 R)
• M8: 3,845,563 km (0.033 R)
• M9: 4,215,818 km (0.115 R)
• M10: 5,229,044 km (0.075 R)
• M11: 5,743,960 km (0.091 R)
• M12: 6,105,687 km (0.12 R)
• M13: 7,400,307 km (0.105 R)
• M14: 8,453,476 km (0.1 R)
• M15: 8,869,807 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.7

Radius: 12.9

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.04 AU - 1.48 AU

Year: 943 Days

Day: 5.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,848,120 km

• M1: 160,967 km (0.116 R)
• M2: 574,306 km (0.085 R)
• M3: 1,098,198 km (0.092 R)
• M4: 1,906,774 km (0.032 R)
• M5: 3,924,251 km (0.117 R)
• M6: 4,384,115 km (0.101 R)
• M7: 5,847,781 km (0.027 R)
• M8: 6,285,654 km (0.043 R)
• M9: 6,788,303 km (0.081 R)
• M10: 7,546,315 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.7

Radius: 12.5

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.29 AU - 1.49 AU

Year: 1093 Days

Day: 6.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 23,848,120 km

• M1: 156,180 km (0.114 R)
• M2: 767,886 km (0.072 R)
• M3: 1,807,890 km (0.117 R)
• M4: 2,500,080 km (0.091 R)
• M5: 3,432,224 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.8

Radius: 9.4

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.65 AU - 1.81 AU

Year: 1517 Days

Day: 14.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,848,120 km

• M1: 116,986 km (0.081 R)
• M2: 464,053 km (0.042 R)
• M3: 790,475 km (0.085 R)
• M4: 1,390,213 km (0.05 R)
• M5: 2,504,717 km (0.075 R)
• M6: 2,882,751 km (0.086 R)
• M7: 3,882,214 km (0.119 R)
• M8: 5,414,845 km (0.116 R)
• M9: 5,858,701 km (0.07 R)
• M10: 7,161,998 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.9

Radius: 10.3

Gravity: 8.62 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.37 AU - 2.43 AU

Year: 2479 Days

Day: 6 Hours

Environment

Temp: -207 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,848,120 km

• M1: 128,205 km (0.107 R)
• M2: 475,422 km (0.103 R)
• M3: 1,062,294 km (0.052 R)
• M4: 1,597,256 km (0.12 R)
• M5: 2,156,603 km (0.074 R)
• M6: 2,578,918 km (0.119 R)
• M7: 3,554,146 km (0.111 R)
• M8: 5,062,691 km (0.12 R)
• M9: 5,973,144 km (0.072 R)
• M10: 6,783,216 km (0.07 R)
• M11: 7,199,547 km (0.055 R)
• M12: 7,760,090 km (0.114 R)
• M13: 10,220,676 km (0.103 R)
• M14: 14,142,085 km (0.047 R)
• M15: 17,880,237 km (0.038 R)
• M16: 18,389,617 km (0.047 R)
• M17: 19,083,752 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.9

Radius: 10.7

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.16 AU - 5.22 AU

Year: 5719 Days

Day: 9.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 23,848,120 km

• M1: 133,142 km (0.074 R)
• M2: 760,705 km (0.047 R)
• M3: 4,501,849 km (0.094 R)
• M4: 5,128,514 km (0.065 R)
• M5: 5,463,165 km (0.095 R)
• M6: 8,874,445 km (0.101 R)
• M7: 9,320,695 km (0.029 R)
• M8: 10,177,891 km (0.088 R)
• M9: 10,543,359 km (0.093 R)
• M10: 11,086,848 km (0.119 R)
• M11: 15,749,514 km (0.087 R)
• M12: 17,594,804 km (0.1 R)
• M13: 17,945,162 km (0.119 R)
• M14: 20,401,559 km (0.065 R)
• M15: 21,978,620 km (0.12 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 16,062 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit