🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.2

Radius: 11.2

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.98 AU - 1.22 AU

Year: 796 Days

Day: 14.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,722,251 km

• M1: 140,323 km (0.119 R)
• M2: 522,994 km (0.101 R)
• M3: 1,073,814 km (0.072 R)
• M4: 1,651,112 km (0.055 R)
• M5: 2,003,265 km (0.025 R)
• M6: 2,448,618 km (0.066 R)
• M7: 2,863,752 km (0.119 R)
• M8: 3,652,133 km (0.11 R)
• M9: 5,072,565 km (0.083 R)
• M10: 5,676,342 km (0.093 R)
• M11: 7,476,902 km (0.077 R)
• M12: 8,186,594 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.5

Radius: 13.3

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.24 AU - 1.84 AU

Year: 1319 Days

Day: 10.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,722,251 km

• M1: 166,353 km (0.049 R)
• M2: 583,132 km (0.108 R)
• M3: 1,041,351 km (0.12 R)
• M4: 1,632,262 km (0.03 R)
• M5: 2,336,719 km (0.109 R)
• M6: 3,023,373 km (0.113 R)
• M7: 4,410,744 km (0.094 R)
• M8: 5,720,323 km (0.1 R)
• M9: 6,232,995 km (0.032 R)
• M10: 7,985,834 km (0.082 R)
• M11: 8,457,216 km (0.102 R)
• M12: 9,640,087 km (0.074 R)
• M13: 11,201,739 km (0.071 R)
• M14: 11,652,477 km (0.088 R)
• M15: 12,115,184 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.8

Radius: 9.2

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.36 AU - 2.14 AU

Year: 1598 Days

Day: 14.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 97.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,722,251 km

• M1: 114,442 km (0.064 R)
• M2: 461,809 km (0.082 R)
• M3: 780,003 km (0.091 R)
• M4: 1,070,223 km (0.079 R)
• M5: 1,450,800 km (0.072 R)
• M6: 1,738,178 km (0.047 R)
• M7: 2,562,462 km (0.061 R)
• M8: 3,369,842 km (0.06 R)
• M9: 3,768,670 km (0.101 R)
• M10: 6,600,408 km (0.104 R)
• M11: 7,709,227 km (0.108 R)
• M12: 8,185,995 km (0.062 R)
• M13: 9,316,058 km (0.067 R)
• M14: 10,229,502 km (0.082 R)
• M15: 11,068,447 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.5

Radius: 11

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.37 AU - 2.53 AU

Year: 2647 Days

Day: 9.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,722,251 km

• M1: 136,732 km (0.089 R)
• M2: 560,842 km (0.11 R)
• M3: 1,078,301 km (0.096 R)
• M4: 1,624,932 km (0.085 R)
• M5: 3,639,267 km (0.045 R)
• M6: 4,655,785 km (0.109 R)
• M7: 5,597,803 km (0.052 R)
• M8: 6,061,257 km (0.093 R)
• M9: 6,550,143 km (0.083 R)
• M10: 7,213,161 km (0.109 R)
• M11: 8,472,176 km (0.055 R)
• M12: 10,283,058 km (0.087 R)
• M13: 10,861,553 km (0.099 R)
• M14: 11,219,092 km (0.112 R)
• M15: 12,728,385 km (0.082 R)
• M16: 14,039,311 km (0.066 R)
• M17: 14,994,494 km (0.114 R)
• M18: 15,338,868 km (0.049 R)
• M19: 18,567,639 km (0.118 R)
• M20: 19,542,568 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.1

Radius: 12

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.5 AU - 4.14 AU

Year: 4176 Days

Day: 13 Hours

Environment

Temp: -221 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,722,251 km

• M1: 149,299 km (0.1 R)
• M2: 1,238,521 km (0.112 R)
• M3: 2,311,586 km (0.03 R)
• M4: 3,287,563 km (0.12 R)
• M5: 4,446,049 km (0.05 R)
• M6: 5,173,693 km (0.082 R)
• M7: 7,446,982 km (0.073 R)
• M8: 8,171,335 km (0.064 R)
• M9: 8,784,237 km (0.085 R)
• M10: 9,468,947 km (0.111 R)
• M11: 10,451,356 km (0.048 R)
• M12: 12,075,241 km (0.074 R)
• M13: 12,568,764 km (0.06 R)
• M14: 13,230,286 km (0.101 R)
• M15: 14,402,685 km (0.117 R)
• M16: 15,070,639 km (0.075 R)
• M17: 16,170,483 km (0.032 R)
• M18: 20,617,579 km (0.087 R)
• M19: 21,754,373 km (0.11 R)
• M20: 22,412,005 km (0.112 R)
• M21: 23,233,746 km (0.09 R)
• M22: 24,937,367 km (0.082 R)
• M23: 25,738,613 km (0.102 R)
• M24: 27,056,271 km (0.105 R)
• M25: 29,647,306 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.1

Radius: 13.9

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 3.1 AU - 3.6 AU

Year: 4232 Days

Day: 5.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,722,251 km

• M1: 173,534 km (0.096 R)
• M2: 639,381 km (0.048 R)
• M3: 1,431,053 km (0.098 R)
• M4: 1,995,785 km (0.117 R)
• M5: 3,268,265 km (0.107 R)
• M6: 5,175,039 km (0.104 R)
• M7: 5,933,351 km (0.11 R)
• M8: 6,527,853 km (0.114 R)
• M9: 8,553,857 km (0.106 R)
• M10: 9,092,409 km (0.074 R)
• M11: 10,437,892 km (0.08 R)
• M12: 11,477,448 km (0.093 R)
• M13: 13,811,324 km (0.118 R)
• M14: 15,691,620 km (0.053 R)
• M15: 17,508,187 km (0.082 R)
• M16: 19,338,666 km (0.104 R)
• M17: 21,163,910 km (0.082 R)
• M18: 22,759,072 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.5

Radius: 5.7

Gravity: 23.04 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.57 AU - 8.53 AU

Year: 14320 Days

Day: 19.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,722,251 km

• M1: 71,059 km (0.097 R)
• M2: 947,852 km (0.119 R)
• M3: 1,536,520 km (0.079 R)
• M4: 2,162,587 km (0.116 R)
• M5: 4,516,509 km (0.034 R)
• M6: 4,812,713 km (0.05 R)
• M7: 5,666,618 km (0.068 R)
• M8: 8,235,812 km (0.102 R)
• M9: 11,734,607 km (0.106 R)
• M10: 14,221,671 km (0.12 R)
• M11: 15,736,649 km (0.04 R)
• M12: 23,164,333 km (0.059 R)
• M13: 25,665,160 km (0.065 R)
• M14: 25,976,773 km (0.054 R)
• M15: 27,464,972 km (0.112 R)
• M16: 28,784,874 km (0.07 R)
• M17: 39,781,814 km (0.117 R)
• M18: 43,645,328 km (0.069 R)
• M19: 56,722,127 km (0.051 R)
• M20: 57,783,225 km (0.082 R)
• M21: 59,399,630 km (0.1 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 413 - 12,419 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit