🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462

Radius: 13.3

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.53 AU - 0.65 AU

Year: 313 Days

Day: 14.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,944,429 km

• M1: 165,605 km (0.115 R)
• M2: 789,578 km (0.089 R)
• M3: 1,206,208 km (0.091 R)
• M4: 1,648,868 km (0.107 R)
• M5: 2,271,793 km (0.096 R)
• M6: 2,952,912 km (0.112 R)
• M7: 3,733,514 km (0.065 R)
• M8: 4,161,214 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879

Radius: 13.3

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.54 AU - 0.82 AU

Year: 387 Days

Day: 10.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,944,429 km

• M1: 165,455 km (0.029 R)
• M2: 619,784 km (0.113 R)
• M3: 1,047,783 km (0.054 R)
• M4: 2,301,264 km (0.068 R)
• M5: 3,000,784 km (0.099 R)
• M6: 4,034,056 km (0.117 R)
• M7: 4,460,560 km (0.1 R)
• M8: 5,149,308 km (0.096 R)
• M9: 5,873,512 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.4

Radius: 8.1

Gravity: 11.48 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.7 AU - 1.08 AU

Year: 580 Days

Day: 5.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,944,429 km

• M1: 102,475 km (0.05 R)
• M2: 375,491 km (0.117 R)
• M3: 884,123 km (0.111 R)
• M4: 1,251,685 km (0.071 R)
• M5: 1,519,466 km (0.098 R)
• M6: 1,809,237 km (0.075 R)
• M7: 2,164,083 km (0.061 R)
• M8: 2,586,398 km (0.107 R)
• M9: 2,944,086 km (0.09 R)
• M10: 4,264,886 km (0.057 R)
• M11: 4,653,092 km (0.118 R)
• M12: 5,393,602 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.5

Radius: 13.2

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.84 AU - 1.2 AU

Year: 711 Days

Day: 5.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,944,429 km

• M1: 164,258 km (0.093 R)
• M2: 619,485 km (0.104 R)
• M3: 1,081,892 km (0.05 R)
• M4: 1,500,018 km (0.058 R)
• M5: 1,983,668 km (0.073 R)
• M6: 2,693,659 km (0.043 R)
• M7: 3,864,711 km (0.05 R)
• M8: 4,365,266 km (0.045 R)
• M9: 5,242,358 km (0.117 R)
• M10: 5,685,317 km (0.086 R)
• M11: 6,213,548 km (0.045 R)
• M12: 6,774,540 km (0.059 R)
• M13: 7,528,812 km (0.028 R)
• M14: 8,094,591 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.3

Radius: 10.9

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.31 AU - 1.97 AU

Year: 1450 Days

Day: 8.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,944,429 km

• M1: 135,685 km (0.114 R)
• M2: 529,427 km (0.063 R)
• M3: 939,325 km (0.037 R)
• M4: 2,299,768 km (0.072 R)
• M5: 2,715,052 km (0.11 R)
• M6: 3,432,673 km (0.074 R)
• M7: 4,520,997 km (0.049 R)
• M8: 5,546,640 km (0.089 R)
• M9: 6,243,766 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.3

Radius: 11.3

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.72 AU - 2.82 AU

Year: 2361 Days

Day: 6.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,944,429 km

• M1: 141,220 km (0.116 R)
• M2: 626,366 km (0.096 R)
• M3: 1,008,738 km (0.035 R)
• M4: 1,397,693 km (0.114 R)
• M5: 1,752,539 km (0.115 R)
• M6: 2,207,317 km (0.079 R)
• M7: 2,695,305 km (0.091 R)
• M8: 3,794,700 km (0.119 R)
• M9: 4,310,363 km (0.078 R)
• M10: 4,805,084 km (0.079 R)
• M11: 5,171,299 km (0.07 R)
• M12: 6,743,274 km (0.059 R)
• M13: 7,777,892 km (0.103 R)
• M14: 8,546,377 km (0.108 R)
• M15: 9,364,827 km (0.095 R)
• M16: 10,012,286 km (0.099 R)
• M17: 11,039,276 km (0.039 R)
• M18: 12,177,117 km (0.077 R)
• M19: 14,028,092 km (0.049 R)
• M20: 15,166,382 km (0.062 R)
• M21: 15,758,191 km (0.087 R)
• M22: 17,198,968 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.8

Radius: 11.3

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.01 AU - 3.21 AU

Year: 2911 Days

Day: 10.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 31,944,429 km

• M1: 146,157 km (0.066 R)
• M2: 680,072 km (0.102 R)
• M3: 1,123,779 km (0.119 R)
• M4: 1,487,003 km (0.089 R)
• M5: 2,316,373 km (0.06 R)
• M6: 4,302,285 km (0.113 R)
• M7: 4,755,118 km (0.044 R)
• M8: 5,340,345 km (0.059 R)
• M9: 5,945,917 km (0.097 R)
• M10: 7,775,349 km (0.079 R)
• M11: 8,801,142 km (0.112 R)
• M12: 9,684,966 km (0.074 R)
• M13: 10,830,736 km (0.085 R)
• M14: 11,415,215 km (0.113 R)
• M15: 12,020,638 km (0.103 R)
• M16: 12,876,338 km (0.041 R)
• M17: 14,359,152 km (0.1 R)
• M18: 14,759,775 km (0.117 R)
• M19: 15,899,710 km (0.036 R)
• M20: 17,718,521 km (0.087 R)
• M21: 18,179,582 km (0.036 R)
• M22: 18,767,053 km (0.099 R)
• M23: 21,116,039 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.4

Radius: 14.5

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 4.13 AU - 5.49 AU

Year: 7282 Days

Day: 9.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,944,429 km

• M1: 180,265 km (0.113 R)
• M2: 636,090 km (0.036 R)
• M3: 1,625,530 km (0.094 R)
• M4: 2,198,042 km (0.103 R)
• M5: 3,436,263 km (0.09 R)
• M6: 4,569,766 km (0.06 R)
• M7: 6,124,986 km (0.083 R)
• M8: 6,737,290 km (0.108 R)
• M9: 7,641,310 km (0.078 R)
• M10: 8,351,900 km (0.053 R)
• M11: 9,733,735 km (0.037 R)
• M12: 11,986,829 km (0.101 R)
• M13: 14,069,081 km (0.027 R)
• M14: 15,023,366 km (0.119 R)
• M15: 16,627,205 km (0.113 R)
• M16: 18,672,806 km (0.068 R)
• M17: 21,974,581 km (0.108 R)
• M18: 26,395,048 km (0.081 R)
• M19: 27,071,530 km (0.116 R)
• M20: 28,724,586 km (0.083 R)
• M21: 30,721,718 km (0.063 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: 244 - 11,052 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit