🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.8

Radius: 14.9

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.47 AU - 0.59 AU

Year: 257 Days

Day: 12.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 43,772,671 km

• M1: 185,352 km (0.05 R)
• M2: 687,851 km (0.098 R)
• M3: 1,168,808 km (0.1 R)
• M4: 1,810,284 km (0.079 R)
• M5: 2,357,363 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31

Radius: 12.1

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.57 AU - 0.61 AU

Year: 302 Days

Day: 11.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 43,772,671 km

• M1: 150,495 km (0.035 R)
• M2: 656,286 km (0.09 R)
• M3: 1,135,897 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473

Radius: 8

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.72 AU - 0.86 AU

Year: 468 Days

Day: 11.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,772,671 km

• M1: 99,483 km (0.072 R)
• M2: 403,166 km (0.084 R)
• M3: 657,034 km (0.103 R)
• M4: 1,791,285 km (0.048 R)
• M5: 2,528,503 km (0.11 R)
• M6: 2,866,594 km (0.104 R)
• M7: 3,658,266 km (0.03 R)
• M8: 5,439,379 km (0.12 R)

Asteroid Belt

Center: 1.23 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.2

Radius: 8.5

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.48 AU - 1.84 AU

Year: 1426 Days

Day: 13.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 43,772,671 km

• M1: 117,883 km (0.07 R)
• M2: 464,950 km (0.103 R)
• M3: 1,271,731 km (0.089 R)
• M4: 2,649,229 km (0.051 R)
• M5: 4,473,276 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.1

Radius: 12.1

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.8 AU - 2.32 AU

Year: 1972 Days

Day: 12.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,772,671 km

• M1: 150,495 km (0.082 R)
• M2: 593,455 km (0.111 R)
• M3: 1,054,665 km (0.075 R)
• M4: 2,168,571 km (0.078 R)
• M5: 2,801,220 km (0.103 R)
• M6: 4,747,937 km (0.03 R)
• M7: 5,162,922 km (0.093 R)
• M8: 6,167,471 km (0.096 R)
• M9: 7,017,038 km (0.09 R)
• M10: 8,003,486 km (0.091 R)
• M11: 9,482,411 km (0.071 R)
• M12: 10,286,948 km (0.084 R)
• M13: 11,022,970 km (0.025 R)
• M14: 12,395,231 km (0.12 R)
• M15: 14,322,949 km (0.072 R)
• M16: 14,961,582 km (0.074 R)
• M17: 15,762,380 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.5

Radius: 9.9

Gravity: 9.58 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.82 AU - 2.88 AU

Year: 2402 Days

Day: 6.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,772,671 km

• M1: 125,213 km (0.096 R)
• M2: 438,771 km (0.119 R)
• M3: 787,034 km (0.053 R)
• M4: 1,317,658 km (0.05 R)
• M5: 1,638,246 km (0.112 R)
• M6: 2,152,863 km (0.113 R)
• M7: 2,514,291 km (0.054 R)
• M8: 2,949,023 km (0.05 R)
• M9: 3,343,213 km (0.058 R)
• M10: 4,997,018 km (0.117 R)
• M11: 5,843,592 km (0.101 R)
• M12: 6,384,538 km (0.065 R)
• M13: 7,350,043 km (0.119 R)
• M14: 7,661,057 km (0.067 R)
• M15: 9,350,615 km (0.077 R)
• M16: 10,476,189 km (0.091 R)
• M17: 11,647,989 km (0.034 R)
• M18: 12,904,911 km (0.062 R)
• M19: 14,686,023 km (0.104 R)
• M20: 15,381,803 km (0.088 R)
• M21: 15,840,619 km (0.101 R)
• M22: 17,601,237 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.4

Radius: 10.2

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.41 AU - 2.83 AU

Year: 2828 Days

Day: 13.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,772,671 km

• M1: 130,898 km (0.104 R)
• M2: 478,264 km (0.112 R)
• M3: 873,951 km (0.083 R)
• M4: 1,341,594 km (0.045 R)
• M5: 1,730,997 km (0.042 R)
• M6: 2,421,840 km (0.066 R)
• M7: 4,025,529 km (0.07 R)
• M8: 4,434,380 km (0.119 R)
• M9: 5,136,742 km (0.046 R)
• M10: 6,242,570 km (0.04 R)
• M11: 6,972,158 km (0.079 R)
• M12: 8,462,153 km (0.106 R)
• M13: 12,192,675 km (0.03 R)
• M14: 13,098,490 km (0.042 R)
• M15: 13,806,687 km (0.092 R)
• M16: 14,790,442 km (0.102 R)
• M17: 15,978,848 km (0.117 R)
• M18: 17,118,484 km (0.063 R)
• M19: 18,898,699 km (0.082 R)
• M20: 19,680,647 km (0.115 R)
• M21: 20,172,525 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.9

Radius: 14

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.61 AU - 3.73 AU

Year: 3764 Days

Day: 7.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,772,671 km

• M1: 181,163 km (0.084 R)
• M2: 800,349 km (0.099 R)
• M3: 1,394,851 km (0.082 R)
• M4: 2,155,406 km (0.064 R)
• M5: 3,180,152 km (0.086 R)
• M6: 3,953,273 km (0.118 R)
• M7: 5,439,079 km (0.086 R)
• M8: 6,179,738 km (0.087 R)
• M9: 6,682,836 km (0.045 R)
• M10: 8,778,104 km (0.101 R)
• M11: 11,280,727 km (0.115 R)
• M12: 13,512,577 km (0.107 R)
• M13: 14,686,173 km (0.115 R)
• M14: 16,074,291 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568.3

Radius: 3.3

Gravity: 52.19 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.84 AU - 6.98 AU

Year: 9581 Days

Day: 24.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 43,772,671 km

• M1: 40,990 km (0.087 R)
• M2: 259,702 km (0.097 R)
• M3: 740,809 km (0.113 R)
• M4: 1,473,988 km (0.049 R)
• M5: 1,627,026 km (0.119 R)
• M6: 1,790,387 km (0.118 R)
• M7: 1,916,050 km (0.026 R)
• M8: 2,098,409 km (0.102 R)
• M9: 2,256,235 km (0.116 R)
• M10: 2,675,259 km (0.099 R)
• M11: 3,144,098 km (0.103 R)
• M12: 3,350,992 km (0.066 R)
• M13: 4,160,466 km (0.081 R)
• M14: 4,787,281 km (0.099 R)
• M15: 5,540,357 km (0.051 R)
• M16: 5,673,200 km (0.11 R)
• M17: 7,004,023 km (0.065 R)
• M18: 7,356,625 km (0.115 R)
• M19: 9,677,187 km (0.117 R)
• M20: 10,924,085 km (0.054 R)
• M21: 12,443,102 km (0.029 R)
• M22: 13,193,934 km (0.094 R)
• M23: 13,490,586 km (0.078 R)
• M24: 14,595,516 km (0.095 R)
• M25: 14,721,926 km (0.101 R)
• M26: 16,228,078 km (0.084 R)
• M27: 16,775,307 km (0.084 R)
• M28: 17,690,397 km (0.116 R)
• M29: 18,861,748 km (0.046 R)
• M30: 19,313,983 km (0.098 R)
• M31: 26,992,692 km (0.118 R)
• M32: 28,344,757 km (0.109 R)
• M33: 30,766,747 km (0.111 R)
• M34: 33,104,662 km (0.081 R)
• M35: 35,444,373 km (0.101 R)
• M36: 42,345,323 km (0.072 R)
• M37: 42,473,827 km (0.06 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: 259 - 13,934 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit