🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.7

Radius: 13.7

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.54 AU - 0.86 AU

Year: 378 Days

Day: 8.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 49,872,973 km

• M1: 170,392 km (0.062 R)
• M2: 655,089 km (0.071 R)
• M3: 1,199,326 km (0.104 R)
• M4: 1,792,482 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.2

Radius: 13.3

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.63 AU - 1.01 AU

Year: 479 Days

Day: 11.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,872,973 km

• M1: 165,455 km (0.102 R)
• M2: 581,936 km (0.114 R)
• M3: 1,191,547 km (0.106 R)
• M4: 1,847,833 km (0.077 R)
• M5: 2,466,869 km (0.105 R)
• M6: 2,983,580 km (0.096 R)
• M7: 3,647,794 km (0.12 R)
• M8: 4,351,503 km (0.091 R)
• M9: 5,660,933 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.6

Radius: 11

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.17 AU - 1.43 AU

Year: 957 Days

Day: 11.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,872,973 km

• M1: 136,882 km (0.031 R)
• M2: 521,797 km (0.103 R)
• M3: 896,540 km (0.108 R)
• M4: 1,554,471 km (0.118 R)
• M5: 2,170,964 km (0.103 R)
• M6: 2,827,400 km (0.119 R)
• M7: 3,385,400 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.3

Radius: 9.4

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.12 AU - 3.3 AU

Year: 2881 Days

Day: 8.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,872,973 km

• M1: 116,836 km (0.093 R)
• M2: 570,865 km (0.116 R)
• M3: 1,101,788 km (0.113 R)
• M4: 1,506,899 km (0.041 R)
• M5: 2,034,381 km (0.086 R)
• M6: 2,409,872 km (0.117 R)
• M7: 4,114,989 km (0.116 R)
• M8: 4,852,357 km (0.085 R)
• M9: 5,625,778 km (0.104 R)
• M10: 6,643,193 km (0.079 R)
• M11: 7,036,934 km (0.085 R)
• M12: 8,441,509 km (0.115 R)
• M13: 8,803,535 km (0.06 R)
• M14: 9,107,219 km (0.096 R)
• M15: 10,024,404 km (0.073 R)
• M16: 10,430,562 km (0.07 R)
• M17: 10,924,534 km (0.069 R)
• M18: 11,434,214 km (0.044 R)
• M19: 13,189,595 km (0.045 R)
• M20: 14,878,855 km (0.105 R)
• M21: 15,262,274 km (0.094 R)
• M22: 16,149,090 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.6

Radius: 9.8

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.85 AU - 4.75 AU

Year: 5757 Days

Day: 8.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,872,973 km

• M1: 121,922 km (0.115 R)
• M2: 1,766,601 km (0.105 R)
• M3: 2,133,565 km (0.067 R)
• M4: 2,790,000 km (0.093 R)
• M5: 4,993,278 km (0.098 R)
• M6: 5,734,685 km (0.072 R)
• M7: 6,083,397 km (0.062 R)
• M8: 10,164,727 km (0.1 R)
• M9: 13,170,148 km (0.078 R)
• M10: 15,780,481 km (0.046 R)
• M11: 18,856,064 km (0.077 R)
• M12: 21,466,696 km (0.094 R)
• M13: 27,571,935 km (0.075 R)
• M14: 28,660,110 km (0.087 R)
• M15: 30,345,778 km (0.118 R)
• M16: 32,394,821 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.4

Radius: 14.8

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.9 AU - 5.46 AU

Year: 7612 Days

Day: 12.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,872,973 km

• M1: 184,005 km (0.105 R)
• M2: 765,642 km (0.111 R)
• M3: 1,594,863 km (0.07 R)
• M4: 2,124,439 km (0.03 R)
• M5: 2,827,101 km (0.118 R)
• M6: 3,863,215 km (0.092 R)
• M7: 4,419,121 km (0.118 R)
• M8: 6,190,061 km (0.079 R)
• M9: 6,955,104 km (0.042 R)
• M10: 8,085,615 km (0.072 R)
• M11: 9,125,321 km (0.117 R)
• M12: 10,897,158 km (0.113 R)
• M13: 15,171,618 km (0.114 R)
• M14: 16,131,737 km (0.057 R)
• M15: 16,941,360 km (0.085 R)
• M16: 18,507,351 km (0.09 R)
• M17: 22,228,598 km (0.031 R)
• M18: 23,231,652 km (0.106 R)
• M19: 25,411,293 km (0.114 R)
• M20: 27,460,335 km (0.032 R)
• M21: 28,615,230 km (0.108 R)
• M22: 32,079,618 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600

Radius: 15

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 4.88 AU - 5.62 AU

Year: 7767 Days

Day: 14.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,872,973 km

• M1: 187,596 km (0.068 R)
• M2: 712,983 km (0.109 R)
• M3: 1,207,105 km (0.088 R)
• M4: 1,770,192 km (0.104 R)
• M5: 3,867,404 km (0.104 R)
• M6: 4,558,995 km (0.032 R)
• M7: 6,673,112 km (0.047 R)
• M8: 7,750,067 km (0.098 R)
• M9: 9,069,820 km (0.096 R)
• M10: 12,965,947 km (0.104 R)
• M11: 24,973,719 km (0.05 R)
• M12: 25,933,688 km (0.114 R)
• M13: 27,282,164 km (0.12 R)
• M14: 27,834,479 km (0.093 R)
• M15: 29,440,113 km (0.058 R)
• M16: 30,907,369 km (0.107 R)
• M17: 31,912,367 km (0.091 R)
• M18: 32,525,719 km (0.104 R)
• M19: 33,565,573 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.7

Radius: 4.6

Gravity: 34.48 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.68 AU - 6.98 AU

Year: 10283 Days

Day: 20.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 170.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 49,872,973 km

• M1: 57,146 km (0.107 R)
• M2: 246,388 km (0.051 R)
• M3: 438,023 km (0.109 R)
• M4: 1,614,311 km (0.044 R)
• M5: 1,946,867 km (0.073 R)
• M6: 2,539,873 km (0.1 R)
• M7: 3,127,343 km (0.079 R)
• M8: 3,366,401 km (0.084 R)
• M9: 3,721,696 km (0.078 R)
• M10: 4,073,400 km (0.037 R)
• M11: 4,271,917 km (0.118 R)
• M12: 4,447,096 km (0.064 R)
• M13: 4,969,641 km (0.103 R)
• M14: 5,328,975 km (0.112 R)
• M15: 5,670,358 km (0.086 R)
• M16: 6,246,908 km (0.039 R)
• M17: 7,183,690 km (0.089 R)
• M18: 9,331,317 km (0.113 R)
• M19: 9,527,589 km (0.074 R)
• M20: 10,081,700 km (0.083 R)
• M21: 17,587,174 km (0.054 R)
• M22: 19,436,354 km (0.097 R)
• M23: 19,999,291 km (0.034 R)
• M24: 21,581,737 km (0.114 R)
• M25: 22,799,763 km (0.053 R)
• M26: 22,977,485 km (0.057 R)
• M27: 26,826,638 km (0.085 R)
• M28: 32,522,876 km (0.099 R)
• M29: 36,252,052 km (0.097 R)
• M30: 39,228,900 km (0.094 R)
• M31: 39,868,880 km (0.074 R)
• M32: 41,038,436 km (0.095 R)
• M33: 42,364,621 km (0.071 R)
• M34: 45,663,404 km (0.087 R)
• M35: 47,087,127 km (0.107 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 190 - 19,431 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit