🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.5

Radius: 11.6

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.77 AU - 0.83 AU

Year: 494 Days

Day: 9.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,246,507 km

• M1: 144,960 km (0.051 R)
• M2: 633,547 km (0.1 R)
• M3: 1,099,993 km (0.073 R)
• M4: 1,817,913 km (0.095 R)
• M5: 2,278,824 km (0.077 R)
• M6: 2,827,400 km (0.072 R)
• M7: 4,621,228 km (0.102 R)
• M8: 5,065,085 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.4

Radius: 14.5

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.68 AU - 1.12 AU

Year: 589 Days

Day: 12.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,246,507 km

• M1: 182,360 km (0.116 R)
• M2: 673,639 km (0.072 R)
• M3: 1,135,298 km (0.06 R)
• M4: 1,669,662 km (0.083 R)
• M5: 2,275,384 km (0.111 R)
• M6: 2,807,354 km (0.104 R)
• M7: 3,320,325 km (0.093 R)
• M8: 3,825,666 km (0.098 R)
• M9: 5,250,137 km (0.12 R)
• M10: 5,734,685 km (0.07 R)
• M11: 6,856,968 km (0.085 R)
• M12: 7,660,757 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.1

Radius: 11.7

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.69 AU - 1.11 AU

Year: 589 Days

Day: 14.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,246,507 km

• M1: 146,456 km (0.098 R)
• M2: 583,731 km (0.074 R)
• M3: 1,447,958 km (0.045 R)
• M4: 1,917,695 km (0.102 R)
• M5: 2,626,490 km (0.097 R)
• M6: 4,209,235 km (0.044 R)
• M7: 4,791,321 km (0.098 R)
• M8: 5,462,117 km (0.104 R)
• M9: 6,116,758 km (0.113 R)
• M10: 6,554,481 km (0.073 R)
• M11: 6,991,756 km (0.114 R)
• M12: 7,627,696 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.3

Radius: 14.9

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.06 AU - 2.12 AU

Year: 2086 Days

Day: 7.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 159.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,246,507 km

• M1: 185,651 km (0.087 R)
• M2: 715,676 km (0.089 R)
• M3: 1,344,885 km (0.087 R)
• M4: 3,106,400 km (0.087 R)
• M5: 3,998,901 km (0.076 R)
• M6: 4,506,337 km (0.071 R)
• M7: 5,293,969 km (0.057 R)
• M8: 6,003,063 km (0.074 R)
• M9: 7,280,480 km (0.108 R)
• M10: 8,129,896 km (0.034 R)
• M11: 8,670,693 km (0.052 R)
• M12: 9,429,154 km (0.119 R)
• M13: 10,439,239 km (0.118 R)
• M14: 11,520,233 km (0.115 R)
• M15: 12,714,473 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.4

Radius: 12

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.61 AU - 3.29 AU

Year: 3497 Days

Day: 8.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,246,507 km

• M1: 149,598 km (0.071 R)
• M2: 522,994 km (0.097 R)
• M3: 919,728 km (0.12 R)
• M4: 1,410,558 km (0.089 R)
• M5: 1,811,780 km (0.086 R)
• M6: 2,380,252 km (0.099 R)
• M7: 2,817,825 km (0.087 R)
• M8: 3,814,447 km (0.12 R)
• M9: 5,188,653 km (0.078 R)
• M10: 5,873,661 km (0.085 R)
• M11: 6,556,426 km (0.115 R)
• M12: 9,078,347 km (0.073 R)
• M13: 11,274,144 km (0.109 R)
• M14: 12,047,865 km (0.11 R)
• M15: 13,854,259 km (0.04 R)
• M16: 14,635,758 km (0.115 R)
• M17: 15,064,356 km (0.119 R)
• M18: 15,446,429 km (0.078 R)
• M19: 16,229,723 km (0.112 R)
• M20: 17,098,289 km (0.096 R)
• M21: 19,309,046 km (0.051 R)
• M22: 23,846,349 km (0.075 R)
• M23: 24,440,552 km (0.089 R)
• M24: 25,273,812 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.9

Radius: 3.7

Gravity: 15.77 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.57 AU - 7.73 AU

Year: 13197 Days

Day: 15.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 39,246,507 km

• M1: 56,249 km (0.064 R)
• M2: 186,399 km (0.085 R)
• M3: 398,828 km (0.078 R)
• M4: 750,981 km (0.103 R)
• M5: 1,062,594 km (0.104 R)
• M6: 1,225,207 km (0.097 R)
• M7: 1,829,582 km (0.083 R)
• M8: 1,999,675 km (0.064 R)
• M9: 2,425,430 km (0.102 R)
• M10: 3,228,472 km (0.085 R)
• M11: 4,090,006 km (0.073 R)
• M12: 5,431,749 km (0.054 R)
• M13: 6,461,880 km (0.105 R)
• M14: 8,555,801 km (0.037 R)
• M15: 9,662,526 km (0.052 R)
• M16: 11,574,088 km (0.11 R)
• M17: 12,645,807 km (0.115 R)
• M18: 13,149,054 km (0.103 R)
• M19: 14,076,262 km (0.097 R)
• M20: 15,611,136 km (0.119 R)
• M21: 16,386,053 km (0.054 R)
• M22: 17,527,186 km (0.058 R)
• M23: 18,222,666 km (0.117 R)
• M24: 21,502,151 km (0.112 R)
• M25: 23,114,666 km (0.107 R)
• M26: 23,865,947 km (0.037 R)
• M27: 27,495,191 km (0.106 R)
• M28: 28,149,532 km (0.086 R)
• M29: 30,075,904 km (0.108 R)
• M30: 33,868,210 km (0.065 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 332 - 11,363 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit