🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.6

Radius: 12.1

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.75 AU - 0.87 AU

Year: 503 Days

Day: 13 Hours

Environment

Temp: -164 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 37,620,234 km

• M1: 150,495 km (0.116 R)
• M2: 618,886 km (0.097 R)
• M3: 1,105,379 km (0.115 R)
• M4: 1,508,844 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.8

Radius: 14.6

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.85 AU - 0.99 AU

Year: 609 Days

Day: 6.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 37,620,234 km

• M1: 181,612 km (0.071 R)
• M2: 697,425 km (0.049 R)
• M3: 1,445,863 km (0.098 R)
• M4: 2,557,974 km (0.078 R)
• M5: 3,686,690 km (0.075 R)
• M6: 4,526,084 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.4

Radius: 12.4

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.87 AU - 1.19 AU

Year: 722 Days

Day: 14.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,620,234 km

• M1: 154,235 km (0.097 R)
• M2: 545,883 km (0.07 R)
• M3: 982,708 km (0.108 R)
• M4: 1,531,284 km (0.087 R)
• M5: 2,049,341 km (0.11 R)
• M6: 2,902,647 km (0.118 R)
• M7: 3,512,408 km (0.105 R)
• M8: 3,994,862 km (0.112 R)
• M9: 4,409,248 km (0.086 R)
• M10: 4,852,506 km (0.109 R)
• M11: 5,325,535 km (0.037 R)
• M12: 6,760,926 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.9

Radius: 15

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.98 AU - 1.28 AU

Year: 829 Days

Day: 5.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,620,234 km

• M1: 186,549 km (0.119 R)
• M2: 791,971 km (0.082 R)
• M3: 1,594,414 km (0.117 R)
• M4: 2,118,755 km (0.064 R)
• M5: 3,211,717 km (0.115 R)
• M6: 3,851,547 km (0.086 R)
• M7: 4,329,662 km (0.112 R)
• M8: 4,880,331 km (0.114 R)
• M9: 5,822,349 km (0.098 R)
• M10: 6,337,265 km (0.028 R)
• M11: 7,008,062 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.6

Radius: 10.5

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.17 AU - 1.59 AU

Year: 1119 Days

Day: 14.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,620,234 km

• M1: 132,544 km (0.105 R)
• M2: 471,682 km (0.118 R)
• M3: 1,063,940 km (0.119 R)
• M4: 2,062,057 km (0.118 R)
• M5: 2,415,557 km (0.083 R)
• M6: 3,087,550 km (0.046 R)
• M7: 3,454,065 km (0.118 R)
• M8: 4,307,970 km (0.065 R)
• M9: 5,240,264 km (0.089 R)
• M10: 5,724,512 km (0.074 R)
• M11: 8,555,353 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.8

Radius: 13

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 3 AU - 3.6 AU

Year: 4138 Days

Day: 6.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 37,620,234 km

• M1: 166,802 km (0.098 R)
• M2: 1,194,090 km (0.093 R)
• M3: 1,609,523 km (0.116 R)
• M4: 2,247,708 km (0.053 R)
• M5: 2,795,984 km (0.04 R)
• M6: 3,626,402 km (0.098 R)
• M7: 4,078,636 km (0.095 R)
• M8: 5,455,834 km (0.11 R)
• M9: 6,194,249 km (0.051 R)
• M10: 8,005,880 km (0.079 R)
• M11: 8,923,663 km (0.114 R)
• M12: 10,968,665 km (0.095 R)
• M13: 11,395,169 km (0.039 R)
• M14: 11,832,743 km (0.079 R)
• M15: 12,327,164 km (0.111 R)
• M16: 12,882,172 km (0.117 R)
• M17: 13,453,785 km (0.113 R)
• M18: 14,192,051 km (0.106 R)
• M19: 15,009,154 km (0.117 R)
• M20: 15,803,369 km (0.098 R)
• M21: 16,625,559 km (0.083 R)
• M22: 17,303,687 km (0.09 R)
• M23: 17,882,780 km (0.064 R)
• M24: 23,339,811 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.1

Radius: 7.1

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.41 AU - 7.59 AU

Year: 11439 Days

Day: 23.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,620,234 km

• M1: 89,310 km (0.104 R)
• M2: 406,906 km (0.058 R)
• M3: 1,228,199 km (0.045 R)
• M4: 2,314,728 km (0.041 R)
• M5: 2,928,977 km (0.08 R)
• M6: 6,469,958 km (0.096 R)
• M7: 9,881,089 km (0.113 R)
• M8: 10,635,212 km (0.113 R)
• M9: 11,225,525 km (0.11 R)
• M10: 12,364,414 km (0.035 R)
• M11: 19,667,183 km (0.082 R)
• M12: 33,190,532 km (0.098 R)
• M13: 37,395,429 km (0.032 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 482 - 12,741 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit