🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.62 AU - 0.66 AU

Year: 336 Days

Day: 42.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 25.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.8

Radius: 12.7

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.86 AU - 1.02 AU

Year: 598 Days

Day: 10.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 91,128,212 km

• M1: 166,951 km (0.093 R)
• M2: 675,434 km (0.098 R)
• M3: 1,286,691 km (0.041 R)
• M4: 2,114,716 km (0.084 R)
• M5: 2,959,195 km (0.083 R)
• M6: 3,482,489 km (0.075 R)
• M7: 4,843,381 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.6

Radius: 10

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.55 AU - 1.87 AU

Year: 1467 Days

Day: 9.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 91,128,212 km

• M1: 125,213 km (0.082 R)
• M2: 669,450 km (0.087 R)
• M3: 990,039 km (0.066 R)
• M4: 3,287,712 km (0.068 R)
• M5: 5,394,798 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.3

Radius: 15

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.87 AU - 2.51 AU

Year: 2126 Days

Day: 7.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 91,128,212 km

• M1: 186,549 km (0.053 R)
• M2: 723,605 km (0.081 R)
• M3: 1,243,158 km (0.101 R)
• M4: 1,762,263 km (0.086 R)
• M5: 2,342,703 km (0.089 R)
• M6: 3,050,450 km (0.078 R)
• M7: 5,211,691 km (0.028 R)
• M8: 6,160,141 km (0.06 R)
• M9: 6,880,156 km (0.097 R)
• M10: 7,545,567 km (0.035 R)
• M11: 8,022,335 km (0.076 R)
• M12: 9,672,400 km (0.039 R)
• M13: 10,269,894 km (0.082 R)
• M14: 14,009,093 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.2

Radius: 12.4

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.99 AU - 3.13 AU

Year: 2687 Days

Day: 12.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 91,128,212 km

• M1: 154,235 km (0.067 R)
• M2: 695,032 km (0.117 R)
• M3: 1,114,055 km (0.105 R)
• M4: 1,610,870 km (0.097 R)
• M5: 2,162,587 km (0.119 R)
• M6: 2,683,636 km (0.058 R)
• M7: 3,429,830 km (0.042 R)
• M8: 3,901,512 km (0.112 R)
• M9: 4,352,400 km (0.096 R)
• M10: 5,685,617 km (0.113 R)
• M11: 7,581,620 km (0.068 R)
• M12: 8,420,565 km (0.066 R)
• M13: 8,932,040 km (0.079 R)
• M14: 11,392,925 km (0.106 R)
• M15: 13,024,739 km (0.079 R)
• M16: 14,515,481 km (0.103 R)
• M17: 15,503,276 km (0.076 R)
• M18: 16,641,118 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.1

Radius: 5.3

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 7.86 AU - 11.82 AU

Year: 20249 Days

Day: 23.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 91,128,212 km

• M1: 65,973 km (0.054 R)
• M2: 269,725 km (0.112 R)
• M3: 436,227 km (0.109 R)
• M4: 1,050,626 km (0.099 R)
• M5: 1,334,263 km (0.074 R)
• M6: 1,653,505 km (0.056 R)
• M7: 2,655,661 km (0.041 R)
• M8: 3,028,908 km (0.094 R)
• M9: 3,273,949 km (0.119 R)
• M10: 3,556,091 km (0.085 R)
• M11: 4,062,480 km (0.076 R)
• M12: 4,673,437 km (0.051 R)
• M13: 6,322,604 km (0.087 R)
• M14: 6,723,377 km (0.062 R)
• M15: 6,949,120 km (0.08 R)
• M16: 8,985,596 km (0.111 R)
• M17: 10,815,926 km (0.104 R)
• M18: 11,126,042 km (0.074 R)
• M19: 12,202,549 km (0.035 R)
• M20: 13,944,915 km (0.039 R)
• M21: 14,938,843 km (0.076 R)
• M22: 15,714,808 km (0.109 R)
• M23: 16,112,588 km (0.076 R)
• M24: 27,602,453 km (0.115 R)
• M25: 32,356,673 km (0.12 R)
• M26: 39,425,023 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 964

Radius: 6

Gravity: 26.78 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 8.43 AU - 12.43 AU

Year: 22097 Days

Day: 15.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 91,128,212 km

• M1: 74,649 km (0.099 R)
• M2: 284,086 km (0.116 R)
• M3: 491,130 km (0.115 R)
• M4: 709,094 km (0.117 R)
• M5: 1,057,507 km (0.068 R)
• M6: 1,514,529 km (0.08 R)
• M7: 1,886,878 km (0.102 R)
• M8: 2,094,969 km (0.12 R)
• M9: 5,031,575 km (0.113 R)
• M10: 5,858,402 km (0.092 R)
• M11: 6,488,957 km (0.118 R)
• M12: 6,820,616 km (0.104 R)
• M13: 8,595,146 km (0.1 R)
• M14: 8,995,320 km (0.07 R)
• M15: 12,584,322 km (0.096 R)
• M16: 13,707,354 km (0.103 R)
• M17: 16,937,172 km (0.116 R)
• M18: 20,539,488 km (0.065 R)
• M19: 22,518,519 km (0.028 R)
• M20: 26,133,402 km (0.094 R)
• M21: 27,953,559 km (0.107 R)
• M22: 31,979,986 km (0.11 R)
• M23: 32,663,648 km (0.073 R)
• M24: 34,773,127 km (0.03 R)
• M25: 36,228,864 km (0.087 R)
• M26: 38,028,676 km (0.089 R)
• M27: 38,950,648 km (0.115 R)
• M28: 40,999,092 km (0.08 R)
• M29: 43,952,453 km (0.111 R)
• M30: 44,627,438 km (0.048 R)
• M31: 53,275,093 km (0.098 R)
• M32: 53,466,279 km (0.114 R)
• M33: 54,428,792 km (0.08 R)
• M34: 78,635,822 km (0.053 R)
• M35: 81,898,252 km (0.118 R)
• M36: 83,950,286 km (0.119 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 534 - 13,147 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit