🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.48 AU - 0.64 AU

Year: 271 Days

Day: 14.3 Hours

Environment

Temp: -117 °C

Axial Tilt: 0.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 17,439,396 km

• M1: 128,505 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.7

Radius: 12.3

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.87 AU - 1.03 AU

Year: 598 Days

Day: 6.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,439,396 km

• M1: 153,637 km (0.056 R)
• M2: 665,411 km (0.089 R)
• M3: 1,419,385 km (0.065 R)
• M4: 1,882,390 km (0.101 R)
• M5: 2,455,799 km (0.113 R)
• M6: 2,936,457 km (0.096 R)
• M7: 4,462,804 km (0.118 R)
• M8: 4,919,975 km (0.075 R)
• M9: 5,311,323 km (0.112 R)
• M10: 5,757,573 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.8

Radius: 8.1

Gravity: 8.78 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.05 AU - 1.57 AU

Year: 968 Days

Day: 5.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 17,439,396 km

• M1: 100,829 km (0.072 R)
• M2: 395,686 km (0.119 R)
• M3: 656,286 km (0.092 R)
• M4: 989,590 km (0.1 R)
• M5: 1,337,854 km (0.075 R)
• M6: 2,232,150 km (0.102 R)
• M7: 2,539,873 km (0.106 R)
• M8: 2,888,436 km (0.075 R)
• M9: 4,129,948 km (0.093 R)
• M10: 5,614,558 km (0.087 R)
• M11: 6,103,144 km (0.082 R)
• M12: 6,444,377 km (0.116 R)
• M13: 6,731,007 km (0.087 R)
• M14: 7,118,764 km (0.07 R)
• M15: 7,449,226 km (0.07 R)
• M16: 7,839,228 km (0.053 R)
• M17: 9,091,960 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.4

Radius: 10.2

Gravity: 9.17 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.42 AU - 2.28 AU

Year: 1625 Days

Day: 13.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 17,439,396 km

• M1: 126,859 km (0.118 R)
• M2: 689,945 km (0.032 R)
• M3: 1,050,476 km (0.12 R)
• M4: 1,716,785 km (0.063 R)
• M5: 2,044,853 km (0.104 R)
• M6: 2,644,591 km (0.108 R)
• M7: 3,009,311 km (0.1 R)
• M8: 3,457,805 km (0.102 R)
• M9: 4,156,726 km (0.092 R)
• M10: 4,798,202 km (0.077 R)
• M11: 5,527,641 km (0.1 R)
• M12: 5,980,175 km (0.09 R)
• M13: 6,613,123 km (0.084 R)
• M14: 7,096,025 km (0.047 R)
• M15: 7,718,053 km (0.116 R)
• M16: 8,941,914 km (0.102 R)
• M17: 9,499,465 km (0.042 R)
• M18: 9,838,304 km (0.108 R)
• M19: 11,848,002 km (0.075 R)
• M20: 12,320,432 km (0.071 R)
• M21: 13,052,713 km (0.079 R)
• M22: 13,514,372 km (0.107 R)
• M23: 14,249,048 km (0.064 R)
• M24: 14,828,739 km (0.108 R)
• M25: 15,285,312 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.4

Radius: 9.9

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.7 AU - 6.44 AU

Year: 8488 Days

Day: 6.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 17,439,396 km

• M1: 130,599 km (0.105 R)
• M2: 457,171 km (0.083 R)
• M3: 957,426 km (0.112 R)
• M4: 1,349,672 km (0.096 R)
• M5: 1,789,191 km (0.052 R)
• M6: 2,100,952 km (0.034 R)
• M7: 3,131,083 km (0.105 R)
• M8: 3,660,809 km (0.103 R)
• M9: 4,063,677 km (0.031 R)
• M10: 5,140,931 km (0.076 R)
• M11: 5,680,381 km (0.092 R)
• M12: 8,566,273 km (0.052 R)
• M13: 8,918,127 km (0.106 R)
• M14: 9,510,236 km (0.038 R)
• M15: 9,839,950 km (0.12 R)
• M16: 10,324,048 km (0.104 R)
• M17: 11,392,476 km (0.11 R)
• M18: 12,035,298 km (0.066 R)
• M19: 12,421,261 km (0.068 R)
• M20: 12,872,598 km (0.087 R)
• M21: 14,048,736 km (0.097 R)
• M22: 15,617,868 km (0.114 R)
• M23: 16,954,824 km (0.087 R)
• M24: 17,370,407 km (0.094 R)
• M25: 18,149,962 km (0.097 R)
• M26: 20,394,678 km (0.11 R)
• M27: 21,745,696 km (0.112 R)
• M28: 23,155,506 km (0.111 R)
• M29: 27,368,930 km (0.096 R)
• M30: 28,521,432 km (0.081 R)
• M31: 29,406,753 km (0.097 R)
• M32: 30,922,777 km (0.106 R)
• M33: 40,881,657 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 17

Radius: 5.4

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.15 AU - 8.35 AU

Year: 13931 Days

Day: 15.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,439,396 km

• M1: 67,169 km (0.12 R)
• M2: 265,087 km (0.102 R)
• M3: 536,159 km (0.077 R)
• M4: 1,129,763 km (0.049 R)
• M5: 3,335,434 km (0.117 R)
• M6: 5,650,910 km (0.09 R)
• M7: 5,823,845 km (0.062 R)
• M8: 7,573,392 km (0.095 R)
• M9: 10,548,744 km (0.075 R)
• M10: 11,825,263 km (0.078 R)
• M11: 13,594,706 km (0.089 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 530 - 13,601 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit