🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.75 AU - 0.77 AU

Year: 241 Days

Day: 31.5 Hours

Environment

Temp: 180 °C

Axial Tilt: 38.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.68 AU - 0.94 AU

Year: 265 Days

Day: 18.4 Hours

Environment

Temp: 132 °C

Axial Tilt: 32.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.76 AU - 1.16 AU

Year: 342 Days

Day: 37.7 Hours

Environment

Temp: 108 °C

Axial Tilt: 31.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.92 AU - 1.28 AU

Year: 419 Days

Day: 25.5 Hours

Environment

Temp: 24 °C

Axial Tilt: 23.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 48,601,623 km

• M1: 58,194 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.93 AU - 3.05 AU

Year: 1428 Days

Day: 31.9 Hours

Environment

Temp: -82 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,601,623 km

• M1: 202,256 km (0.053 R)

Asteroid Belt

Center: 3.87 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.3

Radius: 10.4

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.55 AU - 5.93 AU

Year: 4359 Days

Day: 14.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 112 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 48,601,623 km

• M1: 129,402 km (0.071 R)
• M2: 1,037,461 km (0.105 R)
• M3: 1,798,615 km (0.076 R)
• M4: 2,226,764 km (0.028 R)
• M5: 2,688,423 km (0.099 R)
• M6: 3,136,918 km (0.078 R)
• M7: 3,827,013 km (0.096 R)
• M8: 4,790,273 km (0.104 R)
• M9: 5,154,095 km (0.113 R)
• M10: 5,592,268 km (0.075 R)
• M11: 6,235,538 km (0.108 R)
• M12: 7,258,339 km (0.061 R)
• M13: 8,024,131 km (0.095 R)
• M14: 8,881,177 km (0.106 R)
• M15: 10,472,599 km (0.081 R)
• M16: 10,865,443 km (0.1 R)
• M17: 12,682,309 km (0.068 R)
• M18: 13,585,731 km (0.115 R)
• M19: 15,020,673 km (0.087 R)
• M20: 16,554,052 km (0.06 R)
• M21: 17,878,741 km (0.117 R)
• M22: 19,929,728 km (0.109 R)
• M23: 20,737,855 km (0.063 R)
• M24: 22,635,803 km (0.045 R)
• M25: 22,999,625 km (0.049 R)
• M26: 26,051,871 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.1

Radius: 10.5

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.23 AU - 6.61 AU

Year: 5235 Days

Day: 6.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 48,601,623 km

• M1: 130,898 km (0.073 R)
• M2: 485,894 km (0.114 R)
• M3: 886,667 km (0.115 R)
• M4: 1,231,938 km (0.085 R)
• M5: 2,254,590 km (0.12 R)
• M6: 3,531,557 km (0.098 R)
• M7: 4,065,322 km (0.052 R)
• M8: 4,425,703 km (0.113 R)
• M9: 4,966,350 km (0.096 R)
• M10: 5,874,409 km (0.088 R)
• M11: 6,658,003 km (0.105 R)
• M12: 7,509,963 km (0.108 R)
• M13: 8,471,279 km (0.12 R)
• M14: 9,183,664 km (0.113 R)
• M15: 9,849,823 km (0.064 R)
• M16: 12,288,717 km (0.076 R)
• M17: 13,621,485 km (0.086 R)
• M18: 14,213,443 km (0.115 R)
• M19: 14,543,456 km (0.089 R)
• M20: 18,716,638 km (0.113 R)
• M21: 19,992,708 km (0.063 R)
• M22: 24,956,216 km (0.12 R)
• M23: 27,001,368 km (0.073 R)
• M24: 27,935,607 km (0.081 R)
• M25: 28,367,347 km (0.103 R)
• M26: 29,868,711 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.7

Radius: 9.3

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.8 AU - 9.5 AU

Year: 10059 Days

Day: 11 Hours

Environment

Temp: -173 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 48,601,623 km

• M1: 115,639 km (0.113 R)
• M2: 417,677 km (0.065 R)
• M3: 997,668 km (0.119 R)
• M4: 1,437,935 km (0.112 R)
• M5: 2,776,237 km (0.112 R)
• M6: 3,312,845 km (0.09 R)
• M7: 3,970,627 km (0.097 R)
• M8: 5,819,956 km (0.07 R)
• M9: 6,286,103 km (0.038 R)
• M10: 7,171,872 km (0.107 R)
• M11: 8,630,600 km (0.1 R)
• M12: 9,142,225 km (0.071 R)
• M13: 11,013,096 km (0.088 R)
• M14: 11,338,920 km (0.033 R)
• M15: 14,763,814 km (0.106 R)
• M16: 18,440,032 km (0.111 R)
• M17: 19,683,789 km (0.075 R)
• M18: 20,570,605 km (0.115 R)
• M19: 23,480,583 km (0.097 R)
• M20: 25,033,708 km (0.087 R)
• M21: 27,839,266 km (0.11 R)
• M22: 30,633,754 km (0.051 R)
• M23: 37,258,846 km (0.065 R)
• M24: 40,516,040 km (0.085 R)
• M25: 43,551,381 km (0.083 R)
• M26: 44,094,272 km (0.095 R)
• M27: 46,170,690 km (0.106 R)
• M28: 46,735,123 km (0.09 R)

Kuiper Belt

Range: 30.2 - 49.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 541 - 15,023 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit