🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.52 AU - 0.7 AU

Year: 313 Days

Day: 34 Hours

Environment

Temp: -120 °C

Axial Tilt: 42.7 °

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: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.59 AU - 0.69 AU

Year: 336 Days

Day: 20.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 16.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 90,310,112 km

• M1: 61,335 km (0.038 R)
• M2: 449,242 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.2

Radius: 14

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.68 AU - 0.88 AU

Year: 452 Days

Day: 5.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 90,310,112 km

• M1: 174,132 km (0.076 R)
• M2: 703,110 km (0.059 R)
• M3: 1,198,129 km (0.085 R)
• M4: 2,454,303 km (0.12 R)
• M5: 3,048,505 km (0.081 R)
• M6: 3,571,051 km (0.059 R)
• M7: 4,557,499 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.4

Radius: 9.5

Gravity: 10.15 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.82 AU - 1.02 AU

Year: 579 Days

Day: 7.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 90,310,112 km

• M1: 118,182 km (0.118 R)
• M2: 457,769 km (0.12 R)
• M3: 767,886 km (0.113 R)
• M4: 1,156,990 km (0.1 R)
• M5: 1,637,199 km (0.08 R)
• M6: 2,246,362 km (0.059 R)
• M7: 2,720,437 km (0.037 R)
• M8: 3,337,379 km (0.112 R)
• M9: 3,827,013 km (0.087 R)
• M10: 4,194,724 km (0.102 R)
• M11: 4,832,161 km (0.112 R)
• M12: 6,260,072 km (0.038 R)
• M13: 6,667,577 km (0.063 R)
• M14: 7,558,432 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32

Radius: 13

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1 AU - 1.64 AU

Year: 995 Days

Day: 14.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 90,310,112 km

• M1: 164,408 km (0.086 R)
• M2: 571,165 km (0.077 R)
• M3: 1,135,149 km (0.047 R)
• M4: 2,552,738 km (0.109 R)
• M5: 3,498,047 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.4

Radius: 8.8

Gravity: 12.03 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.16 AU - 2.68 AU

Year: 2470 Days

Day: 12.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 90,310,112 km

• M1: 109,506 km (0.1 R)
• M2: 500,854 km (0.083 R)
• M3: 797,207 km (0.072 R)
• M4: 1,241,363 km (0.08 R)
• M5: 2,200,136 km (0.059 R)
• M6: 3,050,001 km (0.094 R)
• M7: 3,438,507 km (0.084 R)
• M8: 3,919,763 km (0.107 R)
• M9: 4,358,235 km (0.083 R)
• M10: 4,829,169 km (0.119 R)
• M11: 5,210,344 km (0.07 R)
• M12: 5,585,835 km (0.069 R)
• M13: 6,734,447 km (0.056 R)
• M14: 7,741,839 km (0.091 R)
• M15: 8,165,201 km (0.039 R)
• M16: 8,951,937 km (0.097 R)
• M17: 11,159,852 km (0.118 R)
• M18: 15,572,989 km (0.087 R)
• M19: 15,986,178 km (0.086 R)
• M20: 16,566,319 km (0.106 R)
• M21: 17,657,037 km (0.088 R)
• M22: 19,086,893 km (0.113 R)
• M23: 20,163,100 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.7

Radius: 12.4

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.46 AU - 2.68 AU

Year: 2703 Days

Day: 10.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 90,310,112 km

• M1: 154,235 km (0.119 R)
• M2: 578,345 km (0.049 R)
• M3: 1,478,925 km (0.09 R)
• M4: 2,130,124 km (0.098 R)
• M5: 3,184,939 km (0.108 R)
• M6: 4,248,580 km (0.061 R)
• M7: 4,722,506 km (0.049 R)
• M8: 6,005,607 km (0.069 R)
• M9: 7,308,604 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 886.3

Radius: 7.7

Gravity: 14.95 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 9.26 AU - 12 AU

Year: 22736 Days

Day: 22.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 90,310,112 km

• M1: 96,191 km (0.111 R)
• M2: 400,174 km (0.102 R)
• M3: 685,757 km (0.119 R)
• M4: 1,311,973 km (0.093 R)
• M5: 1,681,330 km (0.083 R)
• M6: 1,992,494 km (0.079 R)
• M7: 2,364,993 km (0.085 R)
• M8: 3,135,871 km (0.114 R)
• M9: 3,457,057 km (0.097 R)
• M10: 4,853,105 km (0.099 R)
• M11: 5,284,246 km (0.097 R)
• M12: 7,021,077 km (0.09 R)
• M13: 7,470,469 km (0.114 R)
• M14: 10,515,683 km (0.032 R)
• M15: 11,714,261 km (0.07 R)
• M16: 14,301,257 km (0.101 R)
• M17: 17,246,391 km (0.111 R)
• M18: 20,371,939 km (0.108 R)
• M19: 25,215,469 km (0.108 R)
• M20: 36,801,226 km (0.088 R)
• M21: 37,248,823 km (0.069 R)
• M22: 38,767,091 km (0.044 R)
• M23: 39,075,712 km (0.069 R)
• M24: 41,764,883 km (0.041 R)
• M25: 49,655,273 km (0.083 R)
• M26: 58,281,535 km (0.112 R)
• M27: 58,686,497 km (0.06 R)
• M28: 60,118,896 km (0.118 R)
• M29: 61,156,058 km (0.106 R)
• M30: 66,521,835 km (0.114 R)
• M31: 69,432,261 km (0.062 R)
• M32: 71,727,990 km (0.098 R)
• M33: 83,198,257 km (0.066 R)
• M34: 88,428,797 km (0.11 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 430 - 14,381 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit