🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.53 AU - 0.75 AU

Year: 326 Days

Day: 17.6 Hours

Environment

Temp: -125 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.49 AU - 0.79 AU

Year: 326 Days

Day: 23.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 47.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.6

Radius: 13.3

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.84 AU - 1.02 AU

Year: 570 Days

Day: 9.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 97,598,443 km

• M1: 165,455 km (0.092 R)
• M2: 614,249 km (0.113 R)
• M3: 1,421,928 km (0.085 R)
• M4: 1,877,004 km (0.084 R)
• M5: 2,411,817 km (0.071 R)
• M6: 3,015,145 km (0.107 R)
• M7: 3,472,167 km (0.079 R)
• M8: 4,176,773 km (0.085 R)
• M9: 4,822,587 km (0.098 R)
• M10: 5,617,550 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.5

Radius: 12.4

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.86 AU - 1.38 AU

Year: 754 Days

Day: 5.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 97,598,443 km

• M1: 154,684 km (0.104 R)
• M2: 571,314 km (0.108 R)
• M3: 993,928 km (0.076 R)
• M4: 1,667,717 km (0.111 R)
• M5: 2,075,222 km (0.119 R)
• M6: 2,516,236 km (0.031 R)
• M7: 3,149,634 km (0.064 R)
• M8: 4,297,498 km (0.069 R)
• M9: 4,824,681 km (0.066 R)
• M10: 5,413,947 km (0.07 R)
• M11: 5,989,151 km (0.117 R)
• M12: 6,387,829 km (0.114 R)
• M13: 7,498,743 km (0.038 R)
• M14: 9,248,589 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.9

Radius: 13.9

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.91 AU - 2.91 AU

Year: 2379 Days

Day: 9.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 97,598,443 km

• M1: 173,534 km (0.103 R)
• M2: 1,053,767 km (0.115 R)
• M3: 1,535,921 km (0.061 R)
• M4: 2,318,468 km (0.066 R)
• M5: 3,743,238 km (0.111 R)
• M6: 5,025,142 km (0.067 R)
• M7: 6,165,676 km (0.081 R)
• M8: 7,310,848 km (0.098 R)
• M9: 8,466,192 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.9

Radius: 11.7

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.39 AU - 3.69 AU

Year: 3370 Days

Day: 13.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 97,598,443 km

• M1: 146,606 km (0.089 R)
• M2: 523,443 km (0.115 R)
• M3: 957,426 km (0.069 R)
• M4: 1,421,030 km (0.041 R)
• M5: 1,791,584 km (0.118 R)
• M6: 2,464,176 km (0.111 R)
• M7: 4,638,282 km (0.063 R)
• M8: 5,234,429 km (0.099 R)
• M9: 6,194,848 km (0.064 R)
• M10: 6,610,580 km (0.111 R)
• M11: 7,465,233 km (0.098 R)
• M12: 7,936,616 km (0.106 R)
• M13: 9,051,419 km (0.117 R)
• M14: 10,979,736 km (0.06 R)
• M15: 11,813,893 km (0.112 R)
• M16: 12,642,666 km (0.027 R)
• M17: 13,216,373 km (0.117 R)
• M18: 15,741,586 km (0.118 R)
• M19: 17,031,269 km (0.104 R)
• M20: 21,389,803 km (0.045 R)
• M21: 21,931,048 km (0.105 R)
• M22: 22,690,107 km (0.037 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 192.5

Radius: 14.1

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.36 AU - 4.76 AU

Year: 5201 Days

Day: 5.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 97,598,443 km

• M1: 175,329 km (0.105 R)
• M2: 822,639 km (0.108 R)
• M3: 1,297,462 km (0.106 R)
• M4: 2,134,762 km (0.043 R)
• M5: 2,877,216 km (0.109 R)
• M6: 3,542,926 km (0.07 R)
• M7: 4,633,196 km (0.113 R)
• M8: 5,305,488 km (0.058 R)
• M9: 6,904,241 km (0.049 R)
• M10: 8,566,572 km (0.092 R)
• M11: 9,839,202 km (0.094 R)
• M12: 11,685,838 km (0.025 R)
• M13: 12,149,591 km (0.078 R)
• M14: 19,767,563 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 940.5

Radius: 7.4

Gravity: 17.17 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 11.01 AU - 11.99 AU

Year: 24796 Days

Day: 24.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 97,598,443 km

• M1: 94,695 km (0.088 R)
• M2: 883,824 km (0.102 R)
• M3: 2,302,012 km (0.114 R)
• M4: 2,724,776 km (0.093 R)
• M5: 3,628,048 km (0.118 R)
• M6: 4,528,477 km (0.11 R)
• M7: 4,794,612 km (0.055 R)
• M8: 5,787,493 km (0.067 R)
• M9: 8,800,843 km (0.03 R)
• M10: 10,542,012 km (0.03 R)
• M11: 12,799,444 km (0.064 R)
• M12: 16,492,268 km (0.052 R)
• M13: 21,364,670 km (0.069 R)
• M14: 22,115,502 km (0.079 R)
• M15: 23,443,183 km (0.082 R)
• M16: 27,242,221 km (0.088 R)
• M17: 34,550,077 km (0.034 R)
• M18: 34,990,643 km (0.068 R)
• M19: 38,493,327 km (0.112 R)
• M20: 59,973,188 km (0.099 R)
• M21: 65,862,707 km (0.11 R)
• M22: 83,427,890 km (0.084 R)
• M23: 90,466,769 km (0.114 R)
• M24: 91,583,667 km (0.045 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 15,185 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit