🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.95 AU - 1.43 AU

Year: 481 Days

Day: 13.6 Hours

Environment

Temp: 10 °C

Axial Tilt: 35.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.25 AU - 5.21 AU

Year: 3226 Days

Day: 41.7 Hours

Environment

Temp: -123 °C

Axial Tilt: 16.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 3.66 AU - 5.04 AU

Year: 3365 Days

Day: 37.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,250,642 km

• M1: 1,803,702 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.6

Radius: 13.5

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.92 AU - 6.2 AU

Year: 5532 Days

Day: 5.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,250,642 km

• M1: 167,849 km (0.042 R)
• M2: 652,097 km (0.054 R)
• M3: 1,080,994 km (0.12 R)
• M4: 1,641,687 km (0.116 R)
• M5: 2,196,994 km (0.071 R)
• M6: 2,667,031 km (0.065 R)
• M7: 3,576,735 km (0.108 R)
• M8: 4,190,236 km (0.051 R)
• M9: 6,036,124 km (0.108 R)
• M10: 7,124,599 km (0.116 R)
• M11: 8,168,193 km (0.096 R)
• M12: 9,125,769 km (0.063 R)
• M13: 9,651,157 km (0.046 R)
• M14: 10,396,454 km (0.104 R)
• M15: 10,969,862 km (0.08 R)
• M16: 13,192,288 km (0.114 R)
• M17: 13,913,948 km (0.1 R)
• M18: 14,916,852 km (0.1 R)
• M19: 15,753,553 km (0.025 R)
• M20: 18,333,817 km (0.113 R)
• M21: 18,869,827 km (0.105 R)
• M22: 20,925,301 km (0.025 R)
• M23: 21,379,780 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552

Radius: 9.3

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 7.64 AU - 10.92 AU

Year: 10484 Days

Day: 10.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,250,642 km

• M1: 141,968 km (0.084 R)
• M2: 895,044 km (0.065 R)
• M3: 1,393,055 km (0.081 R)
• M4: 2,312,035 km (0.098 R)
• M5: 3,076,480 km (0.092 R)
• M6: 3,615,631 km (0.11 R)
• M7: 4,412,389 km (0.109 R)
• M8: 4,702,609 km (0.098 R)
• M9: 5,484,707 km (0.063 R)
• M10: 5,959,231 km (0.074 R)
• M11: 6,351,028 km (0.073 R)
• M12: 7,965,339 km (0.025 R)
• M13: 8,982,305 km (0.103 R)
• M14: 9,836,658 km (0.102 R)
• M15: 10,900,898 km (0.114 R)
• M16: 12,494,265 km (0.103 R)
• M17: 15,463,633 km (0.103 R)
• M18: 16,970,083 km (0.064 R)
• M19: 19,564,559 km (0.111 R)
• M20: 20,834,346 km (0.064 R)
• M21: 29,118,178 km (0.116 R)
• M22: 30,666,068 km (0.034 R)
• M23: 32,594,982 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 869.8

Radius: 6.6

Gravity: 19.97 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 12.03 AU - 14.47 AU

Year: 17887 Days

Day: 16.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,250,642 km

• M1: 102,175 km (0.102 R)
• M2: 535,112 km (0.094 R)
• M3: 1,705,865 km (0.116 R)
• M4: 1,984,266 km (0.09 R)
• M5: 2,954,408 km (0.109 R)
• M6: 3,797,243 km (0.101 R)
• M7: 5,386,271 km (0.08 R)
• M8: 8,373,890 km (0.096 R)
• M9: 8,584,225 km (0.057 R)
• M10: 9,292,421 km (0.045 R)
• M11: 13,355,948 km (0.088 R)
• M12: 15,066,002 km (0.093 R)
• M13: 15,614,128 km (0.105 R)
• M14: 18,824,199 km (0.086 R)
• M15: 22,247,148 km (0.079 R)
• M16: 22,549,934 km (0.084 R)
• M17: 23,163,585 km (0.082 R)
• M18: 23,893,473 km (0.105 R)
• M19: 32,056,281 km (0.09 R)
• M20: 33,752,571 km (0.085 R)
• M21: 35,233,889 km (0.098 R)
• M22: 42,052,859 km (0.117 R)
• M23: 51,969,552 km (0.118 R)
• M24: 55,407,461 km (0.03 R)
• M25: 57,087,595 km (0.086 R)
• M26: 62,933,431 km (0.071 R)
• M27: 63,944,862 km (0.077 R)
• M28: 76,253,475 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.4

Radius: 7.6

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 12.13 AU - 19.01 AU

Year: 22784 Days

Day: 18.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,250,642 km

• M1: 95,294 km (0.093 R)
• M2: 345,721 km (0.099 R)
• M3: 1,490,743 km (0.043 R)
• M4: 3,676,966 km (0.097 R)
• M5: 6,573,181 km (0.081 R)
• M6: 7,950,678 km (0.047 R)
• M7: 8,707,194 km (0.105 R)
• M8: 16,493,165 km (0.035 R)
• M9: 17,304,883 km (0.037 R)
• M10: 27,611,429 km (0.105 R)
• M11: 28,523,527 km (0.112 R)
• M12: 28,870,594 km (0.038 R)
• M13: 31,135,206 km (0.069 R)
• M14: 34,031,571 km (0.075 R)
• M15: 39,631,767 km (0.03 R)
• M16: 42,573,759 km (0.099 R)
• M17: 49,552,350 km (0.04 R)
• M18: 51,068,076 km (0.111 R)
• M19: 58,737,809 km (0.056 R)
• M20: 66,124,952 km (0.05 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: 211 - 18,897 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit