🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.5 AU - 0.6 AU

Year: 151 Days

Day: 42.7 Hours

Environment

Temp: 173 °C

Axial Tilt: 1.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.65 AU - 1.05 AU

Year: 291 Days

Day: 23.3 Hours

Environment

Temp: 97 °C

Axial Tilt: 61.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 73,883,175 km

• M1: 25,581 km (0.103 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.94 AU - 1.4 AU

Year: 469 Days

Day: 16.2 Hours

Environment

Temp: 13 °C

Axial Tilt: 12.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 73,883,175 km

• M1: 548,276 km (0.091 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.81 AU - 2.91 AU

Year: 1794 Days

Day: 14.4 Hours

Environment

Temp: -113 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,883,175 km

• M1: 68,516 km (0.076 R)

Asteroid Belt

Center: 3.83 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960

Radius: 8.4

Gravity: 13.61 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.06 AU - 5.52 AU

Year: 3888 Days

Day: 9.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 73,883,175 km

• M1: 104,419 km (0.079 R)
• M2: 450,888 km (0.113 R)
• M3: 777,460 km (0.102 R)
• M4: 1,194,090 km (0.104 R)
• M5: 1,477,429 km (0.094 R)
• M6: 1,953,898 km (0.118 R)
• M7: 2,447,870 km (0.109 R)
• M8: 2,786,111 km (0.095 R)
• M9: 3,792,755 km (0.087 R)
• M10: 4,153,884 km (0.101 R)
• M11: 5,104,130 km (0.09 R)
• M12: 5,544,995 km (0.072 R)
• M13: 7,428,432 km (0.08 R)
• M14: 7,743,784 km (0.116 R)
• M15: 8,401,416 km (0.12 R)
• M16: 9,335,356 km (0.068 R)
• M17: 9,995,531 km (0.09 R)
• M18: 11,043,464 km (0.093 R)
• M19: 12,454,322 km (0.098 R)
• M20: 12,900,124 km (0.106 R)
• M21: 13,876,100 km (0.105 R)
• M22: 15,459,444 km (0.109 R)
• M23: 15,859,020 km (0.077 R)
• M24: 16,738,356 km (0.073 R)
• M25: 20,242,088 km (0.069 R)
• M26: 21,136,384 km (0.095 R)
• M27: 21,628,860 km (0.107 R)
• M28: 25,608,313 km (0.062 R)
• M29: 26,167,959 km (0.039 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.1

Radius: 7.8

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 10.96 AU - 14.2 AU

Year: 16547 Days

Day: 18.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,883,175 km

• M1: 97,388 km (0.056 R)
• M2: 582,534 km (0.074 R)
• M3: 881,730 km (0.12 R)
• M4: 1,129,015 km (0.104 R)
• M5: 1,409,212 km (0.053 R)
• M6: 1,908,869 km (0.102 R)
• M7: 2,435,753 km (0.117 R)
• M8: 4,318,143 km (0.093 R)
• M9: 4,943,761 km (0.114 R)
• M10: 6,456,644 km (0.09 R)
• M11: 7,919,113 km (0.058 R)
• M12: 9,862,389 km (0.12 R)
• M13: 11,362,257 km (0.072 R)
• M14: 12,293,803 km (0.096 R)
• M15: 13,681,922 km (0.077 R)
• M16: 16,223,141 km (0.101 R)
• M17: 16,766,630 km (0.093 R)
• M18: 18,638,249 km (0.056 R)
• M19: 24,168,583 km (0.09 R)
• M20: 25,185,550 km (0.114 R)
• M21: 26,764,106 km (0.093 R)
• M22: 27,413,660 km (0.098 R)
• M23: 30,117,193 km (0.074 R)
• M24: 30,701,971 km (0.106 R)
• M25: 31,175,299 km (0.113 R)
• M26: 34,625,325 km (0.104 R)
• M27: 37,913,785 km (0.114 R)
• M28: 47,111,960 km (0.062 R)
• M29: 49,826,712 km (0.116 R)
• M30: 59,872,359 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 257.7

Radius: 5.8

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 16.34 AU - 22.06 AU

Year: 31200 Days

Day: 19.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,883,175 km

• M1: 74,799 km (0.118 R)
• M2: 428,448 km (0.107 R)
• M3: 3,780,637 km (0.088 R)
• M4: 5,159,331 km (0.049 R)
• M5: 7,070,743 km (0.093 R)
• M6: 7,398,063 km (0.049 R)
• M7: 7,735,407 km (0.111 R)
• M8: 7,982,542 km (0.101 R)
• M9: 11,311,544 km (0.042 R)
• M10: 13,885,824 km (0.095 R)
• M11: 14,177,689 km (0.079 R)
• M12: 21,292,564 km (0.094 R)
• M13: 29,982,106 km (0.102 R)
• M14: 31,838,167 km (0.026 R)
• M15: 39,589,581 km (0.105 R)
• M16: 43,820,208 km (0.029 R)
• M17: 45,241,538 km (0.094 R)
• M18: 63,555,907 km (0.093 R)
• M19: 68,064,488 km (0.107 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 13,692 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit