🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113

Radius: 12.1

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.51 AU - 0.73 AU

Year: 337 Days

Day: 5.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,257,686 km

• M1: 150,645 km (0.107 R)
• M2: 538,552 km (0.093 R)
• M3: 944,112 km (0.09 R)
• M4: 1,447,958 km (0.095 R)
• M5: 1,947,166 km (0.082 R)
• M6: 2,422,438 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.7

Radius: 9.4

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.5 AU - 1.56 AU

Year: 1306 Days

Day: 5.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,257,686 km

• M1: 116,986 km (0.116 R)
• M2: 414,087 km (0.077 R)
• M3: 1,032,674 km (0.103 R)
• M4: 1,678,339 km (0.113 R)
• M5: 2,072,978 km (0.082 R)
• M6: 2,485,569 km (0.076 R)
• M7: 2,942,889 km (0.074 R)
• M8: 3,768,071 km (0.03 R)
• M9: 4,284,932 km (0.025 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.9

Radius: 12

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.74 AU - 1.88 AU

Year: 1681 Days

Day: 12.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,257,686 km

• M1: 149,299 km (0.092 R)
• M2: 1,136,196 km (0.11 R)
• M3: 1,567,636 km (0.112 R)
• M4: 2,120,999 km (0.09 R)
• M5: 2,816,928 km (0.115 R)
• M6: 4,265,035 km (0.114 R)
• M7: 7,019,282 km (0.045 R)
• M8: 8,225,639 km (0.107 R)
• M9: 9,006,839 km (0.058 R)
• M10: 10,252,690 km (0.093 R)
• M11: 12,312,802 km (0.088 R)
• M12: 13,084,578 km (0.118 R)
• M13: 14,105,284 km (0.118 R)
• M14: 15,316,279 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.7

Radius: 10.4

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.84 AU - 2.18 AU

Year: 1967 Days

Day: 11.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,257,686 km

• M1: 129,402 km (0.053 R)
• M2: 549,772 km (0.069 R)
• M3: 1,019,659 km (0.093 R)
• M4: 1,443,919 km (0.092 R)
• M5: 1,837,959 km (0.117 R)
• M6: 2,408,825 km (0.119 R)
• M7: 3,174,616 km (0.072 R)
• M8: 3,831,351 km (0.107 R)
• M9: 4,391,445 km (0.034 R)
• M10: 5,276,018 km (0.088 R)
• M11: 6,915,910 km (0.045 R)
• M12: 7,541,079 km (0.073 R)
• M13: 8,422,360 km (0.089 R)
• M14: 9,303,192 km (0.051 R)
• M15: 9,923,724 km (0.088 R)
• M16: 10,608,434 km (0.119 R)
• M17: 11,479,243 km (0.059 R)
• M18: 11,872,386 km (0.1 R)
• M19: 14,743,020 km (0.107 R)
• M20: 15,923,497 km (0.119 R)
• M21: 16,363,613 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.7

Radius: 12.2

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.45 AU - 4.01 AU

Year: 4007 Days

Day: 15 Hours

Environment

Temp: -216 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,257,686 km

• M1: 152,291 km (0.105 R)
• M2: 600,037 km (0.096 R)
• M3: 1,552,975 km (0.101 R)
• M4: 2,576,075 km (0.068 R)
• M5: 3,144,098 km (0.087 R)
• M6: 3,738,600 km (0.105 R)
• M7: 4,142,515 km (0.081 R)
• M8: 6,899,753 km (0.095 R)
• M9: 13,959,576 km (0.113 R)
• M10: 14,607,334 km (0.078 R)
• M11: 15,518,685 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.5

Radius: 10

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.6 AU - 4.16 AU

Year: 4289 Days

Day: 11.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,257,686 km

• M1: 124,465 km (0.119 R)
• M2: 449,542 km (0.101 R)
• M3: 1,110,764 km (0.079 R)
• M4: 1,474,137 km (0.099 R)
• M5: 1,953,150 km (0.101 R)
• M6: 2,834,132 km (0.107 R)
• M7: 3,382,408 km (0.118 R)
• M8: 6,256,183 km (0.109 R)
• M9: 8,272,762 km (0.045 R)
• M10: 8,804,134 km (0.105 R)
• M11: 10,307,443 km (0.108 R)
• M12: 13,049,123 km (0.088 R)
• M13: 16,090,149 km (0.119 R)
• M14: 16,449,183 km (0.112 R)
• M15: 17,504,297 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118.3

Radius: 6.9

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 8.16 AU - 8.64 AU

Year: 16805 Days

Day: 21.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,257,686 km

• M1: 86,168 km (0.104 R)
• M2: 1,856,809 km (0.074 R)
• M3: 3,749,970 km (0.041 R)
• M4: 4,433,782 km (0.114 R)
• M5: 5,197,778 km (0.102 R)
• M6: 5,850,324 km (0.114 R)
• M7: 6,521,270 km (0.037 R)
• M8: 14,312,776 km (0.084 R)
• M9: 16,351,047 km (0.1 R)
• M10: 29,303,231 km (0.066 R)
• M11: 35,299,562 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 609

Radius: 6.7

Gravity: 13.57 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 7.5 AU - 10.36 AU

Year: 18420 Days

Day: 18.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 69,257,686 km

• M1: 92,451 km (0.099 R)
• M2: 714,779 km (0.108 R)
• M3: 981,063 km (0.075 R)
• M4: 1,230,293 km (0.1 R)
• M5: 2,124,290 km (0.09 R)
• M6: 2,457,893 km (0.087 R)
• M7: 2,973,557 km (0.073 R)
• M8: 4,030,915 km (0.118 R)
• M9: 6,386,782 km (0.101 R)
• M10: 7,638,168 km (0.107 R)
• M11: 8,992,178 km (0.066 R)
• M12: 10,676,052 km (0.106 R)
• M13: 14,581,155 km (0.07 R)
• M14: 15,939,504 km (0.09 R)
• M15: 16,971,579 km (0.101 R)
• M16: 28,114,377 km (0.09 R)
• M17: 29,266,280 km (0.115 R)
• M18: 31,786,855 km (0.076 R)
• M19: 43,319,055 km (0.096 R)
• M20: 48,194,600 km (0.035 R)
• M21: 49,841,971 km (0.069 R)
• M22: 50,176,023 km (0.096 R)
• M23: 55,724,160 km (0.116 R)
• M24: 59,579,147 km (0.087 R)
• M25: 62,827,216 km (0.103 R)
• M26: 64,198,281 km (0.077 R)
• M27: 65,589,092 km (0.103 R)
• M28: 68,636,999 km (0.117 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 179 - 14,270 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit