🌌 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: 524.8

Radius: 10.5

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.54 AU - 0.66 AU

Year: 321 Days

Day: 10.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 26,871,635 km

• M1: 130,599 km (0.117 R)
• M2: 514,467 km (0.032 R)
• M3: 922,271 km (0.088 R)
• M4: 1,548,488 km (0.11 R)
• M5: 1,929,214 km (0.068 R)
• M6: 2,281,816 km (0.06 R)
• M7: 2,741,979 km (0.083 R)
• M8: 3,191,072 km (0.118 R)
• M9: 4,052,906 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.5

Radius: 15

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.78 AU - 1.04 AU

Year: 599 Days

Day: 10.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 26,871,635 km

• M1: 186,549 km (0.091 R)
• M2: 908,209 km (0.044 R)
• M3: 1,543,401 km (0.111 R)
• M4: 2,307,697 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.1

Radius: 10.3

Gravity: 8.41 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.79 AU - 1.23 AU

Year: 701 Days

Day: 5.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,871,635 km

• M1: 128,056 km (0.09 R)
• M2: 500,854 km (0.099 R)
• M3: 830,119 km (0.096 R)
• M4: 1,768,995 km (0.098 R)
• M5: 2,207,616 km (0.113 R)
• M6: 2,776,985 km (0.109 R)
• M7: 3,200,497 km (0.119 R)
• M8: 4,177,969 km (0.118 R)
• M9: 5,343,486 km (0.031 R)
• M10: 5,901,935 km (0.075 R)
• M11: 6,330,234 km (0.107 R)
• M12: 6,670,270 km (0.091 R)
• M13: 8,130,495 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.7

Radius: 9.3

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.01 AU - 1.15 AU

Year: 775 Days

Day: 13.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 26,871,635 km

• M1: 115,639 km (0.087 R)
• M2: 1,179,280 km (0.036 R)
• M3: 2,270,596 km (0.12 R)
• M4: 2,623,797 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.3

Radius: 12.4

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.38 AU - 1.9 AU

Year: 1450 Days

Day: 8.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 26,871,635 km

• M1: 154,235 km (0.071 R)
• M2: 598,541 km (0.116 R)
• M3: 1,035,965 km (0.075 R)
• M4: 1,580,053 km (0.098 R)
• M5: 2,414,510 km (0.092 R)
• M6: 3,047,309 km (0.074 R)
• M7: 3,662,305 km (0.108 R)
• M8: 4,100,328 km (0.093 R)
• M9: 4,555,255 km (0.09 R)
• M10: 5,280,954 km (0.076 R)
• M11: 6,629,280 km (0.107 R)
• M12: 8,195,570 km (0.1 R)
• M13: 9,388,463 km (0.082 R)
• M14: 10,629,228 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.1

Radius: 8.9

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.77 AU - 2.35 AU

Year: 2041 Days

Day: 11.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 26,871,635 km

• M1: 110,702 km (0.092 R)
• M2: 495,618 km (0.079 R)
• M3: 991,235 km (0.109 R)
• M4: 1,277,117 km (0.048 R)
• M5: 1,953,150 km (0.032 R)
• M6: 2,301,114 km (0.04 R)
• M7: 2,618,412 km (0.063 R)
• M8: 2,939,149 km (0.097 R)
• M9: 3,217,401 km (0.103 R)
• M10: 3,645,700 km (0.051 R)
• M11: 4,095,541 km (0.104 R)
• M12: 4,994,624 km (0.103 R)
• M13: 5,610,070 km (0.08 R)
• M14: 8,090,552 km (0.108 R)
• M15: 9,527,440 km (0.097 R)
• M16: 9,875,105 km (0.046 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.8

Radius: 13

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.04 AU - 5.8 AU

Year: 7533 Days

Day: 6.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 26,871,635 km

• M1: 161,715 km (0.108 R)
• M2: 1,289,833 km (0.085 R)
• M3: 3,713,019 km (0.095 R)
• M4: 4,739,859 km (0.067 R)
• M5: 7,004,322 km (0.088 R)
• M6: 9,641,882 km (0.088 R)
• M7: 10,072,125 km (0.095 R)
• M8: 12,328,361 km (0.117 R)
• M9: 13,118,686 km (0.087 R)
• M10: 13,696,583 km (0.104 R)
• M11: 16,016,546 km (0.111 R)
• M12: 21,687,802 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568.3

Radius: 7.8

Gravity: 9.34 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 5.43 AU - 6.19 AU

Year: 9667 Days

Day: 18.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 26,871,635 km

• M1: 96,939 km (0.072 R)
• M2: 527,632 km (0.106 R)
• M3: 1,393,205 km (0.053 R)
• M4: 1,647,372 km (0.114 R)
• M5: 2,488,860 km (0.042 R)
• M6: 3,375,377 km (0.087 R)
• M7: 3,942,652 km (0.108 R)
• M8: 5,109,366 km (0.098 R)
• M9: 5,925,123 km (0.089 R)
• M10: 6,787,255 km (0.11 R)
• M11: 7,486,925 km (0.117 R)
• M12: 7,771,609 km (0.119 R)
• M13: 8,625,215 km (0.082 R)
• M14: 9,682,423 km (0.091 R)
• M15: 10,267,201 km (0.079 R)
• M16: 12,613,943 km (0.067 R)
• M17: 13,134,693 km (0.119 R)
• M18: 16,022,381 km (0.074 R)
• M19: 18,045,692 km (0.034 R)
• M20: 18,411,010 km (0.04 R)
• M21: 18,855,914 km (0.096 R)
• M22: 20,155,321 km (0.062 R)
• M23: 20,627,901 km (0.096 R)
• M24: 25,860,086 km (0.1 R)
• M25: 26,700,078 km (0.084 R)
• M26: 26,984,165 km (0.108 R)
• M27: 31,175,149 km (0.112 R)
• M28: 31,595,519 km (0.109 R)
• M29: 31,913,415 km (0.037 R)
• M30: 33,205,940 km (0.081 R)
• M31: 34,757,719 km (0.101 R)
• M32: 35,096,408 km (0.092 R)
• M33: 36,473,307 km (0.032 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 124.6

Radius: 3.3

Gravity: 11.44 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.72 AU - 7.04 AU

Year: 9842 Days

Day: 20.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 26,871,635 km

• M1: 40,990 km (0.049 R)
• M2: 144,811 km (0.101 R)
• M3: 255,663 km (0.083 R)
• M4: 384,766 km (0.087 R)
• M5: 586,872 km (0.083 R)
• M6: 780,003 km (0.09 R)
• M7: 3,120,911 km (0.099 R)
• M8: 3,558,485 km (0.089 R)
• M9: 3,770,315 km (0.117 R)
• M10: 3,923,503 km (0.035 R)
• M11: 4,456,521 km (0.111 R)
• M12: 6,686,277 km (0.107 R)
• M13: 6,910,973 km (0.068 R)
• M14: 7,107,544 km (0.111 R)
• M15: 8,329,460 km (0.104 R)
• M16: 8,816,850 km (0.032 R)
• M17: 9,087,023 km (0.081 R)
• M18: 9,442,618 km (0.116 R)
• M19: 10,435,798 km (0.042 R)
• M20: 13,778,263 km (0.086 R)
• M21: 16,000,539 km (0.096 R)
• M22: 17,226,195 km (0.112 R)
• M23: 22,255,077 km (0.099 R)
• M24: 23,704,979 km (0.103 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: 185 - 16,583 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit