🌌 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: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.63 AU - 0.89 AU

Year: 250 Days

Day: 12.8 Hours

Environment

Temp: 90 °C

Axial Tilt: 11.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 77,441,993 km

• M1: 13,015 km (0.102 R)
• M2: 27,077 km (0.071 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.79 AU - 1.05 AU

Year: 332 Days

Day: 22.8 Hours

Environment

Temp: 22 °C

Axial Tilt: 37.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.99 AU - 1.05 AU

Year: 388 Days

Day: 20 Hours

Environment

Temp: 2 °C

Axial Tilt: 8.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 77,441,993 km

• M1: 24,684 km (0.092 R)
• M2: 43,533 km (0.108 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.78 AU - 2.32 AU

Year: 1106 Days

Day: 26.8 Hours

Environment

Temp: -84 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.1

Radius: 9.4

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 3.7 AU - 5.76 AU

Year: 3875 Days

Day: 14.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,441,993 km

• M1: 122,820 km (0.087 R)
• M2: 466,596 km (0.039 R)
• M3: 1,003,652 km (0.043 R)
• M4: 1,333,216 km (0.117 R)
• M5: 1,961,378 km (0.083 R)
• M6: 2,486,167 km (0.082 R)
• M7: 3,648,842 km (0.108 R)
• M8: 4,042,284 km (0.084 R)
• M9: 7,666,592 km (0.115 R)
• M10: 8,459,610 km (0.062 R)
• M11: 8,997,714 km (0.03 R)
• M12: 9,912,505 km (0.085 R)
• M13: 10,681,138 km (0.09 R)
• M14: 11,132,774 km (0.097 R)
• M15: 12,336,888 km (0.093 R)
• M16: 13,464,706 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.1

Radius: 12.3

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.49 AU - 5.85 AU

Year: 5086 Days

Day: 7.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 77,441,993 km

• M1: 153,188 km (0.071 R)
• M2: 897,886 km (0.103 R)
• M3: 1,380,489 km (0.072 R)
• M4: 2,036,476 km (0.12 R)
• M5: 2,520,874 km (0.083 R)
• M6: 3,219,945 km (0.084 R)
• M7: 4,091,502 km (0.043 R)
• M8: 4,660,422 km (0.079 R)
• M9: 5,114,452 km (0.1 R)
• M10: 5,627,274 km (0.076 R)
• M11: 6,080,705 km (0.058 R)
• M12: 7,164,990 km (0.116 R)
• M13: 8,490,427 km (0.114 R)
• M14: 9,502,756 km (0.089 R)
• M15: 10,016,625 km (0.116 R)
• M16: 10,822,060 km (0.119 R)
• M17: 11,815,689 km (0.119 R)
• M18: 12,715,071 km (0.092 R)
• M19: 14,990,604 km (0.101 R)
• M20: 15,628,938 km (0.113 R)
• M21: 17,209,889 km (0.046 R)
• M22: 17,974,483 km (0.105 R)
• M23: 23,276,082 km (0.117 R)
• M24: 23,975,153 km (0.075 R)
• M25: 24,928,989 km (0.079 R)
• M26: 30,725,607 km (0.097 R)
• M27: 31,661,492 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 648.7

Radius: 3.4

Gravity: 56.12 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 12.36 AU - 16.92 AU

Year: 21103 Days

Day: 17.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 77,441,993 km

• M1: 42,486 km (0.102 R)
• M2: 486,193 km (0.103 R)
• M3: 718,967 km (0.053 R)
• M4: 1,387,071 km (0.099 R)
• M5: 1,834,070 km (0.068 R)
• M6: 2,392,968 km (0.115 R)
• M7: 2,926,134 km (0.087 R)
• M8: 4,091,352 km (0.074 R)
• M9: 5,574,316 km (0.115 R)
• M10: 10,189,111 km (0.069 R)
• M11: 13,854,558 km (0.118 R)
• M12: 17,097,241 km (0.119 R)
• M13: 18,848,135 km (0.099 R)
• M14: 19,395,813 km (0.115 R)
• M15: 22,294,421 km (0.108 R)
• M16: 22,906,725 km (0.111 R)
• M17: 24,486,778 km (0.102 R)
• M18: 27,511,048 km (0.03 R)
• M19: 33,220,451 km (0.093 R)
• M20: 37,340,526 km (0.099 R)
• M21: 45,590,549 km (0.09 R)
• M22: 52,250,347 km (0.03 R)
• M23: 55,160,325 km (0.119 R)
• M24: 58,753,816 km (0.036 R)
• M25: 68,093,510 km (0.115 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 12,839 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit