🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.62 AU - 0.64 AU

Year: 323 Days

Day: 14.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 29.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.8

Radius: 14.1

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.82 AU - 1.36 AU

Year: 735 Days

Day: 10 Hours

Environment

Temp: -172 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,855,280 km

• M1: 204,051 km (0.102 R)
• M2: 743,352 km (0.058 R)
• M3: 1,450,202 km (0.074 R)
• M4: 2,392,070 km (0.105 R)
• M5: 3,117,620 km (0.117 R)
• M6: 3,684,446 km (0.118 R)
• M7: 4,128,901 km (0.101 R)
• M8: 5,178,031 km (0.094 R)
• M9: 6,166,275 km (0.052 R)
• M10: 6,695,701 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.5

Radius: 13

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.14 AU - 4.96 AU

Year: 5263 Days

Day: 8.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,855,280 km

• M1: 161,865 km (0.078 R)
• M2: 989,590 km (0.094 R)
• M3: 1,485,806 km (0.059 R)
• M4: 3,595,884 km (0.112 R)
• M5: 4,265,484 km (0.06 R)
• M6: 4,748,386 km (0.111 R)
• M7: 5,674,397 km (0.094 R)
• M8: 6,988,614 km (0.107 R)
• M9: 8,615,042 km (0.114 R)
• M10: 9,265,045 km (0.095 R)
• M11: 10,755,040 km (0.083 R)
• M12: 11,317,528 km (0.088 R)
• M13: 11,752,110 km (0.074 R)
• M14: 14,998,533 km (0.065 R)
• M15: 15,523,472 km (0.083 R)
• M16: 17,235,619 km (0.088 R)
• M17: 18,268,892 km (0.071 R)
• M18: 20,175,816 km (0.112 R)
• M19: 21,032,413 km (0.11 R)
• M20: 21,690,644 km (0.106 R)
• M21: 23,435,404 km (0.069 R)
• M22: 25,108,656 km (0.094 R)
• M23: 26,267,441 km (0.065 R)
• M24: 27,548,298 km (0.086 R)
• M25: 29,866,467 km (0.115 R)
• M26: 30,326,780 km (0.118 R)
• M27: 31,545,853 km (0.076 R)
• M28: 32,023,219 km (0.054 R)

Asteroid Belt

Center: 4.61 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.8

Radius: 12.8

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 4.57 AU - 5.77 AU

Year: 7590 Days

Day: 5.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 68,855,280 km

• M1: 159,322 km (0.069 R)
• M2: 1,053,319 km (0.077 R)
• M3: 1,576,911 km (0.11 R)
• M4: 2,143,887 km (0.09 R)
• M5: 2,601,657 km (0.083 R)
• M6: 3,512,109 km (0.063 R)
• M7: 5,799,461 km (0.077 R)
• M8: 6,629,430 km (0.096 R)
• M9: 9,158,980 km (0.034 R)
• M10: 9,823,793 km (0.058 R)
• M11: 10,425,775 km (0.12 R)
• M12: 11,200,243 km (0.041 R)
• M13: 12,327,463 km (0.106 R)
• M14: 13,360,586 km (0.118 R)
• M15: 13,984,559 km (0.077 R)
• M16: 14,509,647 km (0.113 R)
• M17: 15,475,301 km (0.098 R)
• M18: 16,227,479 km (0.091 R)
• M19: 19,266,710 km (0.046 R)
• M20: 19,990,464 km (0.106 R)
• M21: 20,807,269 km (0.101 R)
• M22: 23,473,551 km (0.08 R)
• M23: 26,448,305 km (0.118 R)
• M24: 27,523,615 km (0.107 R)
• M25: 28,908,442 km (0.11 R)
• M26: 31,121,593 km (0.12 R)
• M27: 36,427,680 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 11.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 343.9

Radius: 4.5

Gravity: 16.98 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 9.68 AU - 12.78 AU

Year: 24299 Days

Day: 18.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,855,280 km

• M1: 55,950 km (0.091 R)
• M2: 261,347 km (0.112 R)
• M3: 444,006 km (0.08 R)
• M4: 768,783 km (0.103 R)
• M5: 960,269 km (0.113 R)
• M6: 1,156,990 km (0.091 R)
• M7: 1,631,963 km (0.095 R)
• M8: 2,955,456 km (0.117 R)
• M9: 3,319,726 km (0.075 R)
• M10: 5,044,739 km (0.082 R)
• M11: 5,602,739 km (0.119 R)
• M12: 6,200,682 km (0.108 R)
• M13: 6,579,464 km (0.103 R)
• M14: 6,973,355 km (0.074 R)
• M15: 8,400,519 km (0.107 R)
• M16: 9,290,028 km (0.028 R)
• M17: 9,563,193 km (0.12 R)
• M18: 12,202,998 km (0.09 R)
• M19: 12,931,689 km (0.089 R)
• M20: 25,203,950 km (0.074 R)
• M21: 28,389,637 km (0.103 R)
• M22: 28,964,691 km (0.026 R)
• M23: 31,957,097 km (0.079 R)
• M24: 34,105,622 km (0.063 R)
• M25: 36,079,715 km (0.04 R)
• M26: 38,547,482 km (0.085 R)
• M27: 39,679,638 km (0.113 R)
• M28: 42,756,268 km (0.098 R)
• M29: 43,057,409 km (0.108 R)
• M30: 50,713,828 km (0.094 R)
• M31: 52,243,765 km (0.087 R)
• M32: 59,603,382 km (0.113 R)
• M33: 61,115,667 km (0.045 R)
• M34: 61,306,404 km (0.072 R)
• M35: 61,689,225 km (0.085 R)
• M36: 62,073,692 km (0.096 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 18,541 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit