🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.1

Radius: 9.1

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.57 AU - 0.63 AU

Year: 321 Days

Day: 6.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 83,635,414 km

• M1: 113,246 km (0.067 R)
• M2: 708,645 km (0.093 R)
• M3: 1,213,538 km (0.051 R)
• M4: 1,906,026 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.4

Radius: 10.5

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.66 AU - 0.84 AU

Year: 448 Days

Day: 11.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,635,414 km

• M1: 130,599 km (0.032 R)
• M2: 492,626 km (0.06 R)
• M3: 830,119 km (0.064 R)
• M4: 1,222,215 km (0.065 R)
• M5: 1,727,107 km (0.071 R)
• M6: 2,216,741 km (0.063 R)
• M7: 2,683,187 km (0.097 R)
• M8: 3,035,790 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.5

Radius: 9.2

Gravity: 11.43 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.34 AU - 1.8 AU

Year: 1358 Days

Day: 9.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 83,635,414 km

• M1: 114,442 km (0.116 R)
• M2: 602,730 km (0.101 R)
• M3: 906,264 km (0.09 R)
• M4: 1,227,151 km (0.075 R)
• M5: 1,634,357 km (0.107 R)
• M6: 2,165,429 km (0.068 R)
• M7: 2,710,713 km (0.118 R)
• M8: 3,757,151 km (0.113 R)
• M9: 4,506,785 km (0.073 R)
• M10: 5,664,823 km (0.114 R)
• M11: 6,523,514 km (0.099 R)
• M12: 8,260,495 km (0.034 R)
• M13: 8,892,247 km (0.061 R)
• M14: 9,204,308 km (0.102 R)
• M15: 9,523,550 km (0.067 R)
• M16: 10,457,190 km (0.04 R)
• M17: 11,932,674 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.7

Radius: 12.6

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.86 AU - 2.06 AU

Year: 1894 Days

Day: 8 Hours

Environment

Temp: -199 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,635,414 km

• M1: 156,779 km (0.096 R)
• M2: 645,365 km (0.099 R)
• M3: 1,117,646 km (0.108 R)
• M4: 1,984,416 km (0.053 R)
• M5: 2,414,809 km (0.12 R)
• M6: 2,948,574 km (0.045 R)
• M7: 3,848,106 km (0.12 R)
• M8: 5,220,367 km (0.038 R)
• M9: 6,348,335 km (0.031 R)
• M10: 8,704,053 km (0.044 R)
• M11: 9,811,227 km (0.117 R)
• M12: 11,384,548 km (0.091 R)
• M13: 11,909,038 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.9

Radius: 9.7

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.11 AU - 2.13 AU

Year: 2131 Days

Day: 11.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,635,414 km

• M1: 120,576 km (0.109 R)
• M2: 464,950 km (0.118 R)
• M3: 819,048 km (0.115 R)
• M4: 1,160,131 km (0.086 R)
• M5: 1,588,131 km (0.034 R)
• M6: 1,896,303 km (0.059 R)
• M7: 3,572,696 km (0.076 R)
• M8: 3,901,662 km (0.108 R)
• M9: 4,323,378 km (0.041 R)
• M10: 5,863,339 km (0.091 R)
• M11: 6,465,770 km (0.09 R)
• M12: 7,185,784 km (0.077 R)
• M13: 10,147,672 km (0.038 R)
• M14: 11,293,143 km (0.06 R)
• M15: 12,225,736 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356

Radius: 9.1

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.93 AU - 3.25 AU

Year: 3749 Days

Day: 5.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 83,635,414 km

• M1: 113,246 km (0.066 R)
• M2: 459,415 km (0.117 R)
• M3: 1,098,048 km (0.092 R)
• M4: 1,388,418 km (0.108 R)
• M5: 1,730,698 km (0.116 R)
• M6: 2,457,295 km (0.047 R)
• M7: 2,756,191 km (0.104 R)
• M8: 3,285,618 km (0.106 R)
• M9: 3,706,886 km (0.111 R)
• M10: 4,247,084 km (0.038 R)
• M11: 5,142,876 km (0.117 R)
• M12: 5,434,891 km (0.11 R)
• M13: 5,763,707 km (0.072 R)
• M14: 6,268,300 km (0.103 R)
• M15: 6,601,904 km (0.115 R)
• M16: 7,065,208 km (0.111 R)
• M17: 7,960,252 km (0.042 R)
• M18: 8,586,319 km (0.117 R)
• M19: 10,701,932 km (0.077 R)
• M20: 11,341,912 km (0.116 R)
• M21: 12,610,353 km (0.078 R)
• M22: 12,964,151 km (0.108 R)
• M23: 14,065,042 km (0.036 R)
• M24: 15,127,935 km (0.062 R)
• M25: 16,347,457 km (0.077 R)
• M26: 17,686,208 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.6

Radius: 8.8

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.47 AU - 4.99 AU

Year: 6005 Days

Day: 6.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,635,414 km

• M1: 109,506 km (0.099 R)
• M2: 418,874 km (0.035 R)
• M3: 1,099,245 km (0.062 R)
• M4: 2,124,140 km (0.102 R)
• M5: 2,487,214 km (0.109 R)
• M6: 2,816,330 km (0.076 R)
• M7: 3,492,961 km (0.1 R)
• M8: 3,925,897 km (0.061 R)
• M9: 4,434,978 km (0.106 R)
• M10: 5,419,632 km (0.098 R)
• M11: 5,851,970 km (0.085 R)
• M12: 6,203,973 km (0.091 R)
• M13: 7,061,917 km (0.112 R)
• M14: 8,557,746 km (0.105 R)
• M15: 10,435,349 km (0.118 R)
• M16: 13,590,219 km (0.097 R)
• M17: 14,570,833 km (0.056 R)
• M18: 15,125,242 km (0.08 R)
• M19: 16,423,901 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.7

Radius: 4.7

Gravity: 33.26 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 10.03 AU - 10.23 AU

Year: 22255 Days

Day: 24.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,635,414 km

• M1: 65,075 km (0.113 R)
• M2: 308,022 km (0.114 R)
• M3: 514,018 km (0.11 R)
• M4: 912,397 km (0.067 R)
• M5: 2,075,820 km (0.117 R)
• M6: 3,285,768 km (0.091 R)
• M7: 10,568,342 km (0.065 R)
• M8: 12,784,933 km (0.065 R)
• M9: 14,814,677 km (0.111 R)
• M10: 15,536,337 km (0.096 R)
• M11: 18,474,589 km (0.042 R)
• M12: 29,594,049 km (0.115 R)
• M13: 29,845,374 km (0.116 R)
• M14: 40,333,381 km (0.117 R)
• M15: 41,894,285 km (0.102 R)
• M16: 43,010,585 km (0.115 R)
• M17: 43,494,983 km (0.064 R)
• M18: 45,636,177 km (0.087 R)
• M19: 46,647,758 km (0.061 R)
• M20: 46,988,242 km (0.048 R)
• M21: 53,403,747 km (0.102 R)
• M22: 62,212,818 km (0.085 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: 364 - 14,031 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit