🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.5 AU - 0.64 AU

Year: 282 Days

Day: 24 Hours

Environment

Temp: -115 °C

Axial Tilt: 48.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.56 AU - 0.7 AU

Year: 328 Days

Day: 40.6 Hours

Environment

Temp: -123 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,097,063 km

• M1: 105,616 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.8

Radius: 10.9

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.53 AU - 0.87 AU

Year: 384 Days

Day: 11 Hours

Environment

Temp: -144 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 54,097,063 km

• M1: 135,685 km (0.095 R)
• M2: 586,424 km (0.112 R)
• M3: 1,031,627 km (0.093 R)
• M4: 2,057,719 km (0.1 R)
• M5: 3,336,182 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.2

Radius: 11.8

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.19 AU - 1.89 AU

Year: 1254 Days

Day: 10.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,097,063 km

• M1: 149,149 km (0.074 R)
• M2: 558,000 km (0.103 R)
• M3: 1,034,768 km (0.073 R)
• M4: 2,248,755 km (0.067 R)
• M5: 2,622,899 km (0.116 R)
• M6: 3,287,862 km (0.101 R)
• M7: 5,319,251 km (0.05 R)
• M8: 6,444,975 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.4

Radius: 9.1

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.51 AU - 1.97 AU

Year: 1506 Days

Day: 11.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,097,063 km

• M1: 113,844 km (0.081 R)
• M2: 417,827 km (0.109 R)
• M3: 857,345 km (0.068 R)
• M4: 1,277,416 km (0.119 R)
• M5: 1,681,779 km (0.07 R)
• M6: 2,032,137 km (0.047 R)
• M7: 2,526,708 km (0.105 R)
• M8: 2,975,801 km (0.112 R)
• M9: 3,313,892 km (0.088 R)
• M10: 3,951,179 km (0.117 R)
• M11: 4,612,850 km (0.098 R)
• M12: 5,531,082 km (0.083 R)
• M13: 6,022,661 km (0.087 R)
• M14: 6,946,876 km (0.107 R)
• M15: 8,258,700 km (0.07 R)
• M16: 8,844,376 km (0.087 R)
• M17: 9,279,406 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.5

Radius: 13.4

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.91 AU - 3.67 AU

Year: 3915 Days

Day: 5.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 54,097,063 km

• M1: 167,400 km (0.12 R)
• M2: 701,464 km (0.116 R)
• M3: 1,179,729 km (0.075 R)
• M4: 1,721,423 km (0.071 R)
• M5: 2,323,704 km (0.034 R)
• M6: 2,925,386 km (0.113 R)
• M7: 3,864,412 km (0.097 R)
• M8: 5,880,991 km (0.115 R)
• M9: 6,760,029 km (0.118 R)
• M10: 7,784,475 km (0.112 R)
• M11: 8,650,796 km (0.049 R)
• M12: 9,240,960 km (0.063 R)
• M13: 10,465,568 km (0.097 R)
• M14: 12,813,058 km (0.058 R)
• M15: 15,209,017 km (0.083 R)
• M16: 17,064,928 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 626

Radius: 6.6

Gravity: 14.37 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 6.82 AU - 7.48 AU

Year: 12542 Days

Day: 20.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 54,097,063 km

• M1: 82,279 km (0.098 R)
• M2: 303,384 km (0.091 R)
• M3: 547,379 km (0.064 R)
• M4: 1,098,647 km (0.054 R)
• M5: 1,660,237 km (0.105 R)
• M6: 2,280,919 km (0.116 R)
• M7: 2,519,079 km (0.095 R)
• M8: 2,730,311 km (0.081 R)
• M9: 3,643,755 km (0.101 R)
• M10: 4,652,045 km (0.104 R)
• M11: 5,408,561 km (0.066 R)
• M12: 5,798,114 km (0.112 R)
• M13: 8,032,957 km (0.106 R)
• M14: 8,260,944 km (0.107 R)
• M15: 11,175,559 km (0.078 R)
• M16: 12,402,860 km (0.104 R)
• M17: 14,915,955 km (0.057 R)
• M18: 15,260,928 km (0.102 R)
• M19: 16,182,750 km (0.093 R)
• M20: 17,291,868 km (0.083 R)
• M21: 18,450,803 km (0.028 R)
• M22: 18,688,664 km (0.103 R)
• M23: 20,666,048 km (0.104 R)
• M24: 23,420,893 km (0.119 R)
• M25: 28,470,120 km (0.045 R)
• M26: 29,538,548 km (0.119 R)
• M27: 29,755,316 km (0.077 R)
• M28: 31,303,205 km (0.044 R)
• M29: 33,724,596 km (0.057 R)
• M30: 38,160,921 km (0.083 R)
• M31: 42,971,240 km (0.117 R)
• M32: 51,545,592 km (0.107 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 17,057 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit