🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233

Radius: 13.2

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.97 AU - 1.01 AU

Year: 657 Days

Day: 14.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,006,497 km

• M1: 164,258 km (0.077 R)
• M2: 691,890 km (0.117 R)
• M3: 1,334,114 km (0.031 R)
• M4: 1,847,384 km (0.089 R)
• M5: 2,357,513 km (0.073 R)
• M6: 2,879,310 km (0.108 R)
• M7: 3,306,711 km (0.069 R)
• M8: 3,863,515 km (0.1 R)
• M9: 4,636,786 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412

Radius: 13.2

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.94 AU - 1.04 AU

Year: 657 Days

Day: 8.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,006,497 km

• M1: 164,109 km (0.109 R)
• M2: 623,225 km (0.086 R)
• M3: 1,443,470 km (0.116 R)
• M4: 1,985,613 km (0.106 R)
• M5: 2,433,957 km (0.039 R)
• M6: 2,983,580 km (0.076 R)
• M7: 3,428,035 km (0.107 R)
• M8: 3,889,993 km (0.093 R)
• M9: 4,631,251 km (0.095 R)
• M10: 5,971,947 km (0.093 R)
• M11: 6,529,349 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.1

Radius: 14.1

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.96 AU - 1.26 AU

Year: 780 Days

Day: 10.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,006,497 km

• M1: 175,329 km (0.116 R)
• M2: 662,719 km (0.105 R)
• M3: 1,253,331 km (0.084 R)
• M4: 1,701,526 km (0.041 R)
• M5: 2,165,878 km (0.115 R)
• M6: 2,938,850 km (0.105 R)
• M7: 4,160,915 km (0.073 R)
• M8: 5,771,935 km (0.082 R)
• M9: 7,435,313 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.8

Radius: 9.3

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.4 AU - 2.22 AU

Year: 1624 Days

Day: 8.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,006,497 km

• M1: 115,639 km (0.039 R)
• M2: 544,985 km (0.116 R)
• M3: 875,297 km (0.117 R)
• M4: 1,170,005 km (0.101 R)
• M5: 1,702,125 km (0.069 R)
• M6: 2,125,935 km (0.104 R)
• M7: 3,310,601 km (0.078 R)
• M8: 4,726,545 km (0.076 R)
• M9: 5,704,167 km (0.078 R)
• M10: 7,280,779 km (0.101 R)
• M11: 10,534,532 km (0.096 R)
• M12: 10,881,001 km (0.048 R)
• M13: 12,343,769 km (0.119 R)
• M14: 12,846,268 km (0.065 R)
• M15: 13,322,139 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26

Radius: 12.3

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.88 AU - 2.12 AU

Year: 1886 Days

Day: 12.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,006,497 km

• M1: 156,629 km (0.087 R)
• M2: 564,882 km (0.057 R)
• M3: 990,488 km (0.079 R)
• M4: 1,598,752 km (0.056 R)
• M5: 2,187,570 km (0.108 R)
• M6: 3,041,923 km (0.08 R)
• M7: 3,448,381 km (0.105 R)
• M8: 4,848,617 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694

Radius: 11.3

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.21 AU - 3.21 AU

Year: 2975 Days

Day: 14.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,006,497 km

• M1: 140,622 km (0.098 R)
• M2: 532,718 km (0.056 R)
• M3: 993,180 km (0.119 R)
• M4: 1,765,105 km (0.092 R)
• M5: 2,678,849 km (0.089 R)
• M6: 4,836,948 km (0.118 R)
• M7: 5,913,155 km (0.103 R)
• M8: 9,496,772 km (0.053 R)
• M9: 14,864,194 km (0.073 R)
• M10: 15,990,965 km (0.116 R)
• M11: 17,395,091 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.9

Radius: 13.1

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.57 AU - 5.05 AU

Year: 5967 Days

Day: 9.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,006,497 km

• M1: 163,211 km (0.077 R)
• M2: 610,958 km (0.106 R)
• M3: 1,053,767 km (0.104 R)
• M4: 1,942,379 km (0.103 R)
• M5: 3,221,291 km (0.056 R)
• M6: 3,701,051 km (0.086 R)
• M7: 4,304,230 km (0.072 R)
• M8: 5,405,869 km (0.104 R)
• M9: 6,250,349 km (0.05 R)
• M10: 7,180,997 km (0.119 R)
• M11: 9,188,600 km (0.069 R)
• M12: 9,710,847 km (0.102 R)
• M13: 11,006,963 km (0.098 R)
• M14: 12,679,168 km (0.073 R)
• M15: 14,985,368 km (0.107 R)
• M16: 17,757,866 km (0.09 R)
• M17: 22,299,507 km (0.088 R)
• M18: 22,926,771 km (0.071 R)
• M19: 30,432,844 km (0.12 R)
• M20: 31,891,124 km (0.117 R)
• M21: 32,788,113 km (0.079 R)
• M22: 33,599,383 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 45.2

Radius: 7.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.08 AU - 9.3 AU

Year: 14221 Days

Day: 23.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,006,497 km

• M1: 444,605 km (0.103 R)
• M2: 2,201,482 km (0.06 R)
• M3: 3,199,749 km (0.094 R)
• M4: 4,495,266 km (0.112 R)
• M5: 9,822,297 km (0.051 R)
• M6: 11,364,501 km (0.083 R)
• M7: 16,051,253 km (0.064 R)
• M8: 16,665,502 km (0.101 R)
• M9: 18,602,794 km (0.052 R)
• M10: 21,412,990 km (0.09 R)
• M11: 22,709,555 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 449.6

Radius: 4.2

Gravity: 25.49 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 6.02 AU - 10.04 AU

Year: 15174 Days

Day: 17.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 55,006,497 km

• M1: 53,706 km (0.101 R)
• M2: 568,472 km (0.069 R)
• M3: 738,415 km (0.076 R)
• M4: 1,351,318 km (0.081 R)
• M5: 2,155,556 km (0.095 R)
• M6: 2,368,284 km (0.094 R)
• M7: 2,680,794 km (0.1 R)
• M8: 5,160,827 km (0.073 R)
• M9: 6,478,037 km (0.116 R)
• M10: 12,281,985 km (0.112 R)
• M11: 13,924,719 km (0.082 R)
• M12: 14,189,807 km (0.104 R)
• M13: 14,661,639 km (0.085 R)
• M14: 15,424,438 km (0.105 R)
• M15: 16,067,858 km (0.075 R)
• M16: 18,660,240 km (0.112 R)
• M17: 18,820,908 km (0.106 R)
• M18: 19,308,298 km (0.037 R)
• M19: 23,143,389 km (0.039 R)
• M20: 24,366,800 km (0.058 R)
• M21: 27,146,778 km (0.101 R)
• M22: 27,353,073 km (0.099 R)
• M23: 28,294,492 km (0.115 R)
• M24: 35,496,284 km (0.082 R)
• M25: 37,120,318 km (0.09 R)
• M26: 38,402,821 km (0.118 R)
• M27: 39,055,067 km (0.118 R)
• M28: 46,281,542 km (0.042 R)
• M29: 52,570,487 km (0.084 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 11,884 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit