🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.64 AU - 0.96 AU

Year: 267 Days

Day: 19 Hours

Environment

Temp: 91 °C

Axial Tilt: 35.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.79 AU - 1.19 AU

Year: 367 Days

Day: 21.8 Hours

Environment

Temp: 34 °C

Axial Tilt: 33.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 44,888,917 km

• M1: 125,064 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.6

Radius: 11.2

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 8.03 AU - 8.53 AU

Year: 8882 Days

Day: 8.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,888,917 km

• M1: 154,834 km (0.045 R)
• M2: 509,680 km (0.117 R)
• M3: 1,084,734 km (0.109 R)
• M4: 1,449,753 km (0.116 R)
• M5: 1,974,243 km (0.1 R)
• M6: 4,844,278 km (0.025 R)
• M7: 7,942,151 km (0.112 R)
• M8: 11,020,875 km (0.065 R)
• M9: 11,900,062 km (0.104 R)
• M10: 12,493,367 km (0.076 R)
• M11: 18,043,448 km (0.105 R)
• M12: 18,971,852 km (0.05 R)
• M13: 19,410,922 km (0.111 R)
• M14: 24,960,106 km (0.043 R)
• M15: 27,392,567 km (0.111 R)
• M16: 29,487,984 km (0.053 R)
• M17: 29,880,230 km (0.099 R)
• M18: 35,190,655 km (0.104 R)
• M19: 39,534,080 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.8

Radius: 14.1

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 8.29 AU - 10.59 AU

Year: 10812 Days

Day: 13.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 44,888,917 km

• M1: 175,478 km (0.103 R)
• M2: 798,254 km (0.089 R)
• M3: 1,281,007 km (0.104 R)
• M4: 1,964,669 km (0.104 R)
• M5: 2,795,984 km (0.072 R)
• M6: 3,637,173 km (0.103 R)
• M7: 4,336,842 km (0.08 R)
• M8: 6,271,592 km (0.074 R)
• M9: 6,743,423 km (0.082 R)
• M10: 7,323,713 km (0.091 R)
• M11: 7,937,364 km (0.109 R)
• M12: 9,674,494 km (0.1 R)
• M13: 10,523,013 km (0.077 R)
• M14: 11,711,569 km (0.113 R)
• M15: 14,087,183 km (0.086 R)
• M16: 15,108,039 km (0.092 R)
• M17: 17,759,212 km (0.057 R)
• M18: 22,478,576 km (0.118 R)
• M19: 24,062,219 km (0.101 R)
• M20: 26,119,788 km (0.064 R)
• M21: 27,139,747 km (0.094 R)
• M22: 28,186,184 km (0.112 R)
• M23: 29,477,213 km (0.05 R)
• M24: 36,152,569 km (0.064 R)
• M25: 40,310,044 km (0.051 R)
• M26: 42,503,597 km (0.114 R)
• M27: 43,205,211 km (0.084 R)
• M28: 50,026,725 km (0.092 R)
• M29: 50,651,745 km (0.057 R)
• M30: 56,009,293 km (0.059 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 227.4

Radius: 4.3

Gravity: 12.3 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 9.54 AU - 14.7 AU

Year: 15729 Days

Day: 20.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 44,888,917 km

• M1: 74,799 km (0.057 R)
• M2: 273,764 km (0.079 R)
• M3: 417,528 km (0.043 R)
• M4: 1,376,300 km (0.072 R)
• M5: 1,769,444 km (0.044 R)
• M6: 2,162,736 km (0.081 R)
• M7: 2,987,918 km (0.052 R)
• M8: 3,281,280 km (0.069 R)
• M9: 4,858,640 km (0.12 R)
• M10: 5,458,527 km (0.071 R)
• M11: 5,862,142 km (0.079 R)
• M12: 7,351,389 km (0.086 R)
• M13: 7,553,795 km (0.1 R)
• M14: 8,226,237 km (0.103 R)
• M15: 12,253,113 km (0.051 R)
• M16: 17,856,151 km (0.108 R)
• M17: 22,666,621 km (0.111 R)
• M18: 22,923,181 km (0.104 R)
• M19: 24,324,913 km (0.12 R)
• M20: 24,955,618 km (0.096 R)
• M21: 27,297,572 km (0.055 R)
• M22: 36,350,338 km (0.074 R)
• M23: 37,055,841 km (0.073 R)
• M24: 38,981,914 km (0.087 R)
• M25: 41,354,387 km (0.065 R)
• M26: 42,123,170 km (0.106 R)
• M27: 43,032,127 km (0.109 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: 373 - 18,332 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit