🌌 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 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.1

Radius: 12.5

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.45 AU - 0.59 AU

Year: 264 Days

Day: 5.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,659,935 km

• M1: 155,432 km (0.115 R)
• M2: 566,677 km (0.102 R)
• M3: 1,072,318 km (0.099 R)
• M4: 1,498,821 km (0.089 R)
• M5: 2,131,171 km (0.115 R)
• M6: 2,711,312 km (0.031 R)
• M7: 3,395,124 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.8

Radius: 13.8

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.5 AU - 0.58 AU

Year: 279 Days

Day: 13.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,659,935 km

• M1: 171,888 km (0.047 R)
• M2: 603,777 km (0.038 R)
• M3: 1,123,181 km (0.11 R)
• M4: 1,801,009 km (0.109 R)
• M5: 2,350,931 km (0.076 R)
• M6: 2,827,400 km (0.109 R)
• M7: 3,407,839 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590

Radius: 9.6

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.79 AU - 1.01 AU

Year: 600 Days

Day: 14.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,659,935 km

• M1: 119,529 km (0.106 R)
• M2: 476,020 km (0.082 R)
• M3: 865,124 km (0.059 R)
• M4: 1,294,171 km (0.065 R)
• M5: 1,796,970 km (0.12 R)
• M6: 2,289,595 km (0.038 R)
• M7: 2,610,034 km (0.056 R)
• M8: 4,076,991 km (0.118 R)
• M9: 4,613,150 km (0.118 R)
• M10: 5,470,196 km (0.104 R)
• M11: 6,294,330 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.6

Radius: 13.2

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.83 AU - 1.03 AU

Year: 630 Days

Day: 5.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,659,935 km

• M1: 164,558 km (0.026 R)
• M2: 626,217 km (0.113 R)
• M3: 1,190,649 km (0.098 R)
• M4: 1,640,341 km (0.097 R)
• M5: 2,147,777 km (0.079 R)
• M6: 2,794,039 km (0.09 R)
• M7: 3,226,976 km (0.112 R)
• M8: 3,888,946 km (0.064 R)
• M9: 4,353,448 km (0.065 R)
• M10: 5,485,754 km (0.087 R)
• M11: 5,917,045 km (0.094 R)
• M12: 6,596,369 km (0.057 R)
• M13: 7,019,880 km (0.096 R)
• M14: 7,992,565 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.7

Radius: 13.7

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.13 AU - 1.75 AU

Year: 1215 Days

Day: 11.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,659,935 km

• M1: 170,392 km (0.085 R)
• M2: 817,702 km (0.06 R)
• M3: 1,622,688 km (0.104 R)
• M4: 2,331,632 km (0.098 R)
• M5: 2,832,486 km (0.08 R)
• M6: 3,284,720 km (0.096 R)
• M7: 3,736,356 km (0.094 R)
• M8: 4,539,099 km (0.08 R)
• M9: 5,142,876 km (0.074 R)
• M10: 6,091,775 km (0.039 R)
• M11: 6,632,571 km (0.082 R)
• M12: 8,827,322 km (0.113 R)
• M13: 12,334,195 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503

Radius: 8.5

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.4 AU - 2.12 AU

Year: 1641 Days

Day: 5.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,659,935 km

• M1: 111,600 km (0.093 R)
• M2: 953,537 km (0.114 R)
• M3: 1,340,995 km (0.072 R)
• M4: 2,280,021 km (0.065 R)
• M5: 2,827,699 km (0.118 R)
• M6: 3,351,441 km (0.107 R)
• M7: 4,611,055 km (0.053 R)
• M8: 5,975,537 km (0.111 R)
• M9: 6,254,238 km (0.075 R)
• M10: 6,837,969 km (0.115 R)
• M11: 7,591,045 km (0.03 R)
• M12: 7,946,190 km (0.093 R)
• M13: 8,748,783 km (0.111 R)
• M14: 10,084,991 km (0.086 R)
• M15: 10,956,249 km (0.075 R)
• M16: 11,516,792 km (0.1 R)
• M17: 12,133,135 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 129.7

Radius: 6.8

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 5.71 AU - 8.65 AU

Year: 13524 Days

Day: 15.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,659,935 km

• M1: 84,672 km (0.076 R)
• M2: 311,313 km (0.085 R)
• M3: 805,884 km (0.094 R)
• M4: 1,133,952 km (0.066 R)
• M5: 1,574,069 km (0.078 R)
• M6: 2,265,809 km (0.04 R)
• M7: 3,226,377 km (0.092 R)
• M8: 3,660,211 km (0.103 R)
• M9: 4,408,649 km (0.063 R)
• M10: 5,140,033 km (0.058 R)
• M11: 5,640,289 km (0.075 R)
• M12: 6,012,638 km (0.106 R)
• M13: 7,482,885 km (0.1 R)
• M14: 11,699,900 km (0.058 R)
• M15: 14,823,354 km (0.099 R)
• M16: 17,469,291 km (0.094 R)
• M17: 24,971,176 km (0.044 R)
• M18: 26,229,294 km (0.061 R)
• M19: 27,265,708 km (0.038 R)
• M20: 31,300,063 km (0.06 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 526 - 15,900 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit