🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.46 AU - 0.58 AU

Year: 242 Days

Day: 26.7 Hours

Environment

Temp: -122 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,174,880 km

• M1: 44,580 km (0.076 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.42 AU - 0.62 AU

Year: 242 Days

Day: 18.4 Hours

Environment

Temp: -109 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,174,880 km

• M1: 76,744 km (0.097 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.51 AU - 0.57 AU

Year: 256 Days

Day: 30.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 101.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.3

Radius: 8.4

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.95 AU - 0.95 AU

Year: 598 Days

Day: 6.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,174,880 km

• M1: 105,616 km (0.081 R)
• M2: 518,805 km (0.064 R)
• M3: 831,465 km (0.046 R)
• M4: 1,209,499 km (0.078 R)
• M5: 1,616,106 km (0.112 R)
• M6: 1,936,096 km (0.039 R)
• M7: 2,298,571 km (0.095 R)
• M8: 2,814,834 km (0.117 R)
• M9: 3,245,227 km (0.102 R)
• M10: 3,813,399 km (0.111 R)
• M11: 4,522,493 km (0.063 R)
• M12: 5,975,537 km (0.04 R)
• M13: 6,373,168 km (0.049 R)
• M14: 6,930,570 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.5

Radius: 10.3

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.12 AU - 1.16 AU

Year: 786 Days

Day: 13.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,174,880 km

• M1: 128,056 km (0.072 R)
• M2: 463,454 km (0.086 R)
• M3: 1,011,431 km (0.095 R)
• M4: 1,347,727 km (0.115 R)
• M5: 1,888,075 km (0.082 R)
• M6: 2,209,710 km (0.095 R)
• M7: 2,692,911 km (0.106 R)
• M8: 3,092,038 km (0.099 R)
• M9: 3,442,097 km (0.043 R)
• M10: 4,280,593 km (0.106 R)
• M11: 4,842,633 km (0.092 R)
• M12: 5,384,775 km (0.034 R)
• M13: 5,840,151 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.5

Radius: 12.9

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.05 AU - 2.95 AU

Year: 2552 Days

Day: 10.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,174,880 km

• M1: 161,566 km (0.082 R)
• M2: 673,490 km (0.06 R)
• M3: 1,843,046 km (0.096 R)
• M4: 2,424,533 km (0.084 R)
• M5: 2,975,950 km (0.043 R)
• M6: 3,934,873 km (0.068 R)
• M7: 4,774,416 km (0.116 R)
• M8: 5,663,626 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.3

Radius: 6

Gravity: 17.34 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 8.29 AU - 11.67 AU

Year: 20357 Days

Day: 21.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 46,174,880 km

• M1: 74,649 km (0.08 R)
• M2: 266,434 km (0.07 R)
• M3: 516,861 km (0.093 R)
• M4: 981,960 km (0.086 R)
• M5: 1,184,815 km (0.111 R)
• M6: 1,415,794 km (0.095 R)
• M7: 2,564,257 km (0.108 R)
• M8: 2,979,840 km (0.061 R)
• M9: 3,354,732 km (0.069 R)
• M10: 6,690,316 km (0.107 R)
• M11: 6,915,311 km (0.083 R)
• M12: 9,174,089 km (0.103 R)
• M13: 9,966,659 km (0.108 R)
• M14: 10,681,438 km (0.115 R)
• M15: 12,279,592 km (0.083 R)
• M16: 12,617,384 km (0.085 R)
• M17: 14,177,540 km (0.077 R)
• M18: 15,782,725 km (0.112 R)
• M19: 16,182,151 km (0.083 R)
• M20: 17,001,050 km (0.039 R)
• M21: 18,106,429 km (0.112 R)
• M22: 24,254,004 km (0.103 R)
• M23: 26,539,709 km (0.074 R)
• M24: 27,447,021 km (0.104 R)
• M25: 28,728,027 km (0.085 R)
• M26: 29,323,427 km (0.114 R)
• M27: 32,552,048 km (0.113 R)
• M28: 32,809,805 km (0.117 R)
• M29: 33,460,107 km (0.08 R)
• M30: 34,652,402 km (0.114 R)
• M31: 38,112,302 km (0.105 R)
• M32: 43,958,586 km (0.047 R)
• M33: 52,115,560 km (0.046 R)
• M34: 53,178,752 km (0.081 R)
• M35: 55,899,937 km (0.098 R)
• M36: 59,478,318 km (0.072 R)
• M37: 69,405,035 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 112.8

Radius: 5.5

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 10.04 AU - 11.8 AU

Year: 23300 Days

Day: 21.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,174,880 km

• M1: 85,570 km (0.079 R)
• M2: 1,579,155 km (0.064 R)
• M3: 2,824,408 km (0.107 R)
• M4: 4,411,492 km (0.109 R)
• M5: 7,010,605 km (0.051 R)
• M6: 8,122,117 km (0.052 R)
• M7: 8,296,249 km (0.083 R)
• M8: 11,762,731 km (0.099 R)
• M9: 25,304,480 km (0.112 R)
• M10: 30,220,715 km (0.072 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: 182 - 16,510 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit