🌌 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: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.63 AU - 0.63 AU

Year: 328 Days

Day: 29.9 Hours

Environment

Temp: -126 °C

Axial Tilt: 19.4 °

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: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.55 AU - 0.73 AU

Year: 336 Days

Day: 44.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 92,031,612 km

• M1: 366,964 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.7

Radius: 9.6

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.54 AU - 0.9 AU

Year: 401 Days

Day: 6.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 92,031,612 km

• M1: 119,379 km (0.049 R)
• M2: 420,220 km (0.073 R)
• M3: 815,757 km (0.104 R)
• M4: 1,247,197 km (0.082 R)
• M5: 1,891,067 km (0.117 R)
• M6: 2,474,050 km (0.115 R)
• M7: 2,780,127 km (0.095 R)
• M8: 3,213,961 km (0.072 R)
• M9: 3,658,416 km (0.097 R)
• M10: 4,395,634 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.2

Radius: 14

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.88 AU - 1.4 AU

Year: 798 Days

Day: 10.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 92,031,612 km

• M1: 174,132 km (0.074 R)
• M2: 682,166 km (0.105 R)
• M3: 1,130,212 km (0.078 R)
• M4: 1,647,372 km (0.088 R)
• M5: 2,112,771 km (0.036 R)
• M6: 2,587,894 km (0.066 R)
• M7: 3,045,962 km (0.033 R)
• M8: 3,682,950 km (0.114 R)
• M9: 4,169,741 km (0.104 R)
• M10: 4,865,671 km (0.12 R)
• M11: 5,388,216 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.7

Radius: 8.2

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.94 AU - 1.48 AU

Year: 873 Days

Day: 10.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 92,031,612 km

• M1: 102,475 km (0.046 R)
• M2: 360,082 km (0.119 R)
• M3: 673,190 km (0.072 R)
• M4: 1,078,451 km (0.076 R)
• M5: 1,421,180 km (0.077 R)
• M6: 1,774,081 km (0.119 R)
• M7: 2,844,604 km (0.116 R)
• M8: 4,156,427 km (0.065 R)
• M9: 4,961,264 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.6

Radius: 13.4

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.55 AU - 1.63 AU

Year: 1315 Days

Day: 5.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 92,031,612 km

• M1: 167,250 km (0.069 R)
• M2: 611,855 km (0.043 R)
• M3: 1,202,318 km (0.07 R)
• M4: 2,089,134 km (0.093 R)
• M5: 2,536,581 km (0.079 R)
• M6: 3,165,042 km (0.088 R)
• M7: 3,878,774 km (0.101 R)
• M8: 4,338,637 km (0.059 R)
• M9: 4,756,165 km (0.106 R)
• M10: 5,326,582 km (0.097 R)
• M11: 6,363,295 km (0.028 R)
• M12: 9,354,205 km (0.12 R)
• M13: 10,121,194 km (0.114 R)
• M14: 10,791,990 km (0.112 R)
• M15: 11,963,791 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.2

Radius: 11.8

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.25 AU - 3.39 AU

Year: 3107 Days

Day: 6.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 92,031,612 km

• M1: 147,055 km (0.06 R)
• M2: 544,686 km (0.105 R)
• M3: 967,150 km (0.071 R)
• M4: 1,371,214 km (0.071 R)
• M5: 1,854,116 km (0.095 R)
• M6: 2,392,070 km (0.115 R)
• M7: 3,032,349 km (0.115 R)
• M8: 3,571,051 km (0.115 R)
• M9: 4,005,932 km (0.06 R)
• M10: 4,817,949 km (0.11 R)
• M11: 5,631,761 km (0.028 R)
• M12: 6,251,695 km (0.075 R)
• M13: 6,650,972 km (0.063 R)
• M14: 7,128,189 km (0.104 R)
• M15: 7,532,702 km (0.038 R)
• M16: 8,151,438 km (0.071 R)
• M17: 9,380,086 km (0.068 R)
• M18: 10,528,249 km (0.036 R)
• M19: 11,344,156 km (0.087 R)
• M20: 12,157,969 km (0.093 R)
• M21: 13,568,826 km (0.078 R)
• M22: 15,035,334 km (0.099 R)
• M23: 17,373,848 km (0.105 R)
• M24: 18,571,379 km (0.05 R)
• M25: 19,339,714 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 830.5

Radius: 5.1

Gravity: 31.93 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 10.04 AU - 12.1 AU

Year: 24162 Days

Day: 17.9 Hours

Environment

Temp: -242 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 92,031,612 km

• M1: 63,429 km (0.106 R)
• M2: 256,261 km (0.114 R)
• M3: 491,728 km (0.082 R)
• M4: 1,383,032 km (0.082 R)
• M5: 1,914,105 km (0.069 R)
• M6: 2,237,535 km (0.09 R)
• M7: 2,724,476 km (0.094 R)
• M8: 3,840,028 km (0.07 R)
• M9: 4,462,504 km (0.085 R)
• M10: 5,030,677 km (0.079 R)
• M11: 5,774,627 km (0.066 R)
• M12: 6,975,001 km (0.06 R)
• M13: 8,332,751 km (0.115 R)
• M14: 9,310,373 km (0.114 R)
• M15: 10,234,439 km (0.091 R)
• M16: 13,833,016 km (0.06 R)
• M17: 15,198,246 km (0.084 R)
• M18: 16,916,677 km (0.11 R)
• M19: 19,436,055 km (0.025 R)
• M20: 20,028,013 km (0.109 R)
• M21: 23,723,081 km (0.096 R)
• M22: 24,172,323 km (0.08 R)
• M23: 27,109,378 km (0.118 R)
• M24: 28,726,830 km (0.112 R)
• M25: 31,338,959 km (0.116 R)
• M26: 40,276,085 km (0.107 R)
• M27: 41,561,131 km (0.077 R)
• M28: 43,875,260 km (0.107 R)
• M29: 45,063,815 km (0.076 R)
• M30: 47,505,253 km (0.076 R)
• M31: 50,586,520 km (0.117 R)
• M32: 50,771,722 km (0.111 R)
• M33: 56,543,358 km (0.087 R)
• M34: 68,684,870 km (0.107 R)
• M35: 74,756,898 km (0.089 R)
• M36: 76,207,250 km (0.079 R)
• M37: 89,300,055 km (0.114 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: 380 - 16,504 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit