🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.2

Radius: 12.1

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.62 AU - 0.66 AU

Year: 341 Days

Day: 10.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,047,928 km

• M1: 150,495 km (0.032 R)
• M2: 554,260 km (0.091 R)
• M3: 1,007,392 km (0.104 R)
• M4: 1,494,333 km (0.096 R)
• M5: 2,165,280 km (0.082 R)
• M6: 2,712,957 km (0.053 R)
• M7: 3,210,670 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707

Radius: 10.5

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.78 AU - 0.88 AU

Year: 504 Days

Day: 8.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,047,928 km

• M1: 130,749 km (0.077 R)
• M2: 489,035 km (0.115 R)
• M3: 847,322 km (0.053 R)
• M4: 1,238,521 km (0.111 R)
• M5: 1,743,414 km (0.105 R)
• M6: 2,079,859 km (0.066 R)
• M7: 2,529,550 km (0.118 R)
• M8: 2,930,921 km (0.072 R)
• M9: 3,600,372 km (0.079 R)
• M10: 3,944,597 km (0.057 R)
• M11: 4,714,876 km (0.112 R)
• M12: 5,565,340 km (0.098 R)
• M13: 5,972,845 km (0.119 R)
• M14: 6,457,242 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.7

Radius: 8.8

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.74 AU - 0.96 AU

Year: 523 Days

Day: 6.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,047,928 km

• M1: 118,781 km (0.077 R)
• M2: 482,902 km (0.061 R)
• M3: 1,150,108 km (0.117 R)
• M4: 1,587,383 km (0.107 R)
• M5: 1,985,463 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.4

Radius: 8.7

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.99 AU - 1.07 AU

Year: 697 Days

Day: 12.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 21,047,928 km

• M1: 108,159 km (0.072 R)
• M2: 610,359 km (0.111 R)
• M3: 1,411,905 km (0.07 R)
• M4: 2,160,044 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.5

Radius: 14.8

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.49 AU - 1.73 AU

Year: 1362 Days

Day: 9 Hours

Environment

Temp: -189 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,047,928 km

• M1: 184,155 km (0.097 R)
• M2: 1,181,973 km (0.103 R)
• M3: 2,044,704 km (0.102 R)
• M4: 2,533,590 km (0.11 R)
• M5: 3,019,184 km (0.09 R)
• M6: 4,063,826 km (0.075 R)
• M7: 4,588,316 km (0.038 R)
• M8: 5,237,421 km (0.098 R)
• M9: 6,168,219 km (0.081 R)
• M10: 7,058,626 km (0.113 R)
• M11: 7,794,498 km (0.098 R)
• M12: 8,637,332 km (0.101 R)
• M13: 9,691,698 km (0.104 R)
• M14: 10,281,862 km (0.044 R)
• M15: 10,830,138 km (0.06 R)
• M16: 11,534,445 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.7

Radius: 11.3

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.21 AU - 2.33 AU

Year: 2281 Days

Day: 14.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,047,928 km

• M1: 140,772 km (0.089 R)
• M2: 518,207 km (0.101 R)
• M3: 880,832 km (0.051 R)
• M4: 1,268,740 km (0.073 R)
• M5: 1,652,907 km (0.057 R)
• M6: 2,236,189 km (0.038 R)
• M7: 2,741,082 km (0.059 R)
• M8: 3,704,342 km (0.04 R)
• M9: 4,099,879 km (0.116 R)
• M10: 4,784,439 km (0.027 R)
• M11: 6,018,921 km (0.113 R)
• M12: 6,686,875 km (0.065 R)
• M13: 9,465,207 km (0.068 R)
• M14: 10,991,704 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.1

Radius: 14

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.88 AU - 3.04 AU

Year: 2573 Days

Day: 10.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,047,928 km

• M1: 174,132 km (0.078 R)
• M2: 622,626 km (0.102 R)
• M3: 1,061,397 km (0.081 R)
• M4: 2,038,421 km (0.046 R)
• M5: 2,629,931 km (0.1 R)
• M6: 3,590,498 km (0.111 R)
• M7: 4,204,897 km (0.114 R)
• M8: 5,053,266 km (0.054 R)
• M9: 5,775,375 km (0.086 R)
• M10: 6,737,439 km (0.052 R)
• M11: 7,582,069 km (0.12 R)
• M12: 8,261,094 km (0.087 R)
• M13: 8,701,510 km (0.102 R)
• M14: 9,193,238 km (0.105 R)
• M15: 9,629,615 km (0.119 R)
• M16: 12,723,748 km (0.102 R)
• M17: 13,312,565 km (0.096 R)
• M18: 14,642,939 km (0.105 R)
• M19: 16,269,816 km (0.038 R)
• M20: 17,018,403 km (0.105 R)
• M21: 18,526,799 km (0.088 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 12,293 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit