🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.72 AU - 0.84 AU

Year: 260 Days

Day: 45.6 Hours

Environment

Temp: 132 °C

Axial Tilt: 32.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.82 AU - 1.32 AU

Year: 417 Days

Day: 45.4 Hours

Environment

Temp: 14 °C

Axial Tilt: 13.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 74,936,831 km

• M1: 363,074 km (0.053 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.9 AU - 1.26 AU

Year: 423 Days

Day: 33.7 Hours

Environment

Temp: -7 °C

Axial Tilt: 14.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 74,936,831 km

• M1: 26,628 km (0.114 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.46 AU - 4.24 AU

Year: 2846 Days

Day: 40.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.97 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501

Radius: 10

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 5.84 AU - 6.32 AU

Year: 5648 Days

Day: 12.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,936,831 km

• M1: 124,914 km (0.063 R)
• M2: 525,537 km (0.088 R)
• M3: 1,518,269 km (0.1 R)
• M4: 2,179,342 km (0.063 R)
• M5: 2,493,348 km (0.119 R)
• M6: 3,175,065 km (0.055 R)
• M7: 3,602,466 km (0.091 R)
• M8: 3,976,461 km (0.115 R)
• M9: 4,400,571 km (0.046 R)
• M10: 6,067,540 km (0.104 R)
• M11: 7,863,163 km (0.076 R)
• M12: 9,282,249 km (0.116 R)
• M13: 10,819,816 km (0.113 R)
• M14: 13,643,625 km (0.116 R)
• M15: 14,944,079 km (0.089 R)
• M16: 17,108,312 km (0.065 R)
• M17: 19,141,796 km (0.108 R)
• M18: 20,629,995 km (0.099 R)
• M19: 21,189,940 km (0.104 R)
• M20: 26,447,258 km (0.115 R)
• M21: 27,442,533 km (0.083 R)
• M22: 28,376,622 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.1

Radius: 11.4

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 8.16 AU - 11.48 AU

Year: 11593 Days

Day: 9 Hours

Environment

Temp: -180 °C

Axial Tilt: 96.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,936,831 km

• M1: 142,716 km (0.026 R)
• M2: 497,862 km (0.076 R)
• M3: 1,144,424 km (0.096 R)
• M4: 1,554,172 km (0.044 R)
• M5: 2,321,161 km (0.116 R)
• M6: 2,990,761 km (0.116 R)
• M7: 3,489,670 km (0.105 R)
• M8: 4,070,408 km (0.113 R)
• M9: 5,927,068 km (0.106 R)
• M10: 7,139,409 km (0.085 R)
• M11: 8,335,444 km (0.097 R)
• M12: 11,987,726 km (0.05 R)
• M13: 12,782,240 km (0.089 R)
• M14: 13,855,007 km (0.075 R)
• M15: 17,433,537 km (0.078 R)
• M16: 19,129,678 km (0.054 R)
• M17: 23,627,189 km (0.111 R)
• M18: 25,057,494 km (0.071 R)
• M19: 26,355,554 km (0.081 R)
• M20: 26,925,373 km (0.081 R)
• M21: 27,795,584 km (0.108 R)
• M22: 33,970,684 km (0.118 R)
• M23: 35,215,189 km (0.119 R)
• M24: 36,724,781 km (0.052 R)
• M25: 44,254,790 km (0.088 R)
• M26: 44,790,500 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773.4

Radius: 8

Gravity: 12.08 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 13.07 AU - 13.65 AU

Year: 18397 Days

Day: 24.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 84.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,936,831 km

• M1: 99,782 km (0.09 R)
• M2: 514,467 km (0.101 R)
• M3: 1,173,296 km (0.108 R)
• M4: 1,924,726 km (0.112 R)
• M5: 2,201,931 km (0.115 R)
• M6: 2,788,953 km (0.11 R)
• M7: 3,363,409 km (0.092 R)
• M8: 3,952,077 km (0.107 R)
• M9: 4,271,169 km (0.044 R)
• M10: 5,182,220 km (0.046 R)
• M11: 6,694,206 km (0.119 R)
• M12: 7,527,316 km (0.103 R)
• M13: 8,796,654 km (0.118 R)
• M14: 9,852,516 km (0.1 R)
• M15: 11,818,381 km (0.061 R)
• M16: 14,031,981 km (0.073 R)
• M17: 21,712,934 km (0.078 R)
• M18: 23,734,749 km (0.095 R)
• M19: 41,513,559 km (0.073 R)
• M20: 52,325,745 km (0.093 R)
• M21: 53,213,907 km (0.109 R)
• M22: 56,309,087 km (0.117 R)
• M23: 57,995,205 km (0.112 R)
• M24: 62,060,078 km (0.096 R)
• M25: 66,933,379 km (0.104 R)
• M26: 69,676,854 km (0.119 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: 551 - 13,473 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit