🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.7

Radius: 10

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.51 AU - 0.53 AU

Year: 254 Days

Day: 11.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 79,471,309 km

• M1: 124,316 km (0.08 R)
• M2: 729,439 km (0.107 R)
• M3: 1,117,795 km (0.1 R)
• M4: 1,618,948 km (0.094 R)
• M5: 2,076,867 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.7

Radius: 10.3

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.56 AU - 0.66 AU

Year: 323 Days

Day: 5.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 130.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 79,471,309 km

• M1: 128,056 km (0.113 R)
• M2: 472,879 km (0.074 R)
• M3: 927,806 km (0.088 R)
• M4: 1,384,379 km (0.103 R)
• M5: 1,784,403 km (0.109 R)
• M6: 2,543,762 km (0.106 R)
• M7: 2,877,066 km (0.034 R)
• M8: 3,259,738 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.1

Radius: 12.5

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.84 AU - 0.84 AU

Year: 522 Days

Day: 13.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,471,309 km

• M1: 155,881 km (0.027 R)
• M2: 900,878 km (0.031 R)
• M3: 1,290,282 km (0.058 R)
• M4: 1,756,429 km (0.095 R)
• M5: 2,211,954 km (0.1 R)
• M6: 2,834,431 km (0.071 R)
• M7: 3,230,416 km (0.12 R)
• M8: 4,021,041 km (0.116 R)
• M9: 5,340,046 km (0.106 R)
• M10: 5,912,407 km (0.113 R)
• M11: 6,867,889 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.1

Radius: 15

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.34 AU - 2.7 AU

Year: 2713 Days

Day: 13 Hours

Environment

Temp: -204 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 79,471,309 km

• M1: 186,698 km (0.097 R)
• M2: 839,543 km (0.058 R)
• M3: 1,405,322 km (0.105 R)
• M4: 1,929,663 km (0.085 R)
• M5: 2,421,391 km (0.098 R)
• M6: 3,800,384 km (0.1 R)
• M7: 5,069,273 km (0.068 R)
• M8: 5,882,787 km (0.12 R)
• M9: 6,605,045 km (0.095 R)
• M10: 7,251,607 km (0.106 R)
• M11: 8,374,040 km (0.102 R)
• M12: 9,039,152 km (0.063 R)
• M13: 9,969,800 km (0.073 R)
• M14: 11,177,055 km (0.094 R)
• M15: 12,364,264 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10

Radius: 12.5

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.45 AU - 3.85 AU

Year: 3792 Days

Day: 6.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 79,471,309 km

• M1: 195,225 km (0.09 R)
• M2: 1,679,834 km (0.117 R)
• M3: 2,260,424 km (0.12 R)
• M4: 3,777,346 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.1

Radius: 14.9

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.27 AU - 4.31 AU

Year: 5004 Days

Day: 13.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 79,471,309 km

• M1: 185,352 km (0.089 R)
• M2: 689,197 km (0.041 R)
• M3: 2,024,209 km (0.062 R)
• M4: 2,730,760 km (0.061 R)
• M5: 3,370,290 km (0.086 R)
• M6: 5,802,153 km (0.089 R)
• M7: 6,537,577 km (0.101 R)
• M8: 7,051,595 km (0.085 R)
• M9: 8,195,719 km (0.099 R)
• M10: 10,159,491 km (0.063 R)
• M11: 10,685,626 km (0.104 R)
• M12: 12,238,901 km (0.066 R)
• M13: 13,355,200 km (0.104 R)
• M14: 13,938,333 km (0.117 R)
• M15: 14,793,434 km (0.073 R)
• M16: 15,365,197 km (0.104 R)
• M17: 18,868,929 km (0.059 R)
• M18: 21,066,073 km (0.066 R)
• M19: 23,289,397 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.8

Radius: 14.2

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 3.46 AU - 4.26 AU

Year: 5144 Days

Day: 13.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,471,309 km

• M1: 176,525 km (0.063 R)
• M2: 673,490 km (0.118 R)
• M3: 1,133,204 km (0.037 R)
• M4: 1,710,352 km (0.098 R)
• M5: 3,333,041 km (0.071 R)
• M6: 4,370,352 km (0.074 R)
• M7: 5,821,601 km (0.085 R)
• M8: 7,359,617 km (0.106 R)
• M9: 8,474,271 km (0.118 R)
• M10: 8,990,982 km (0.071 R)
• M11: 13,168,203 km (0.119 R)
• M12: 13,646,617 km (0.094 R)
• M13: 16,155,672 km (0.047 R)
• M14: 16,642,913 km (0.088 R)
• M15: 18,492,242 km (0.094 R)
• M16: 22,294,870 km (0.082 R)
• M17: 23,205,921 km (0.048 R)
• M18: 24,141,506 km (0.113 R)
• M19: 26,004,897 km (0.09 R)
• M20: 26,674,946 km (0.089 R)
• M21: 30,476,078 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.3

Radius: 13.8

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.69 AU - 6.51 AU

Year: 8988 Days

Day: 7.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 79,471,309 km

• M1: 175,628 km (0.069 R)
• M2: 693,087 km (0.076 R)
• M3: 1,129,464 km (0.089 R)
• M4: 1,859,950 km (0.116 R)
• M5: 2,473,601 km (0.103 R)
• M6: 3,239,392 km (0.105 R)
• M7: 5,379,839 km (0.111 R)
• M8: 6,575,275 km (0.091 R)
• M9: 7,021,825 km (0.105 R)
• M10: 10,269,744 km (0.071 R)
• M11: 12,245,334 km (0.081 R)
• M12: 16,818,541 km (0.094 R)
• M13: 17,902,676 km (0.101 R)
• M14: 18,524,704 km (0.052 R)
• M15: 19,161,094 km (0.101 R)
• M16: 23,291,192 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.3

Radius: 3

Gravity: 91.37 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 7.21 AU - 11.55 AU

Year: 19485 Days

Day: 18.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 82.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 79,471,309 km

• M1: 37,399 km (0.068 R)
• M2: 224,247 km (0.042 R)
• M3: 906,413 km (0.116 R)
• M4: 1,029,233 km (0.059 R)
• M5: 1,515,576 km (0.095 R)
• M6: 1,689,259 km (0.056 R)
• M7: 2,055,924 km (0.118 R)
• M8: 3,442,995 km (0.046 R)
• M9: 3,621,166 km (0.08 R)
• M10: 4,293,608 km (0.111 R)
• M11: 6,803,861 km (0.103 R)
• M12: 7,275,692 km (0.102 R)
• M13: 7,618,870 km (0.045 R)
• M14: 11,796,390 km (0.071 R)
• M15: 12,337,935 km (0.075 R)
• M16: 12,895,935 km (0.101 R)
• M17: 13,038,053 km (0.103 R)
• M18: 14,747,956 km (0.06 R)
• M19: 15,696,706 km (0.115 R)
• M20: 16,685,399 km (0.095 R)
• M21: 17,195,078 km (0.108 R)
• M22: 18,786,052 km (0.105 R)
• M23: 18,968,711 km (0.104 R)
• M24: 19,711,015 km (0.108 R)
• M25: 21,253,369 km (0.094 R)
• M26: 22,359,197 km (0.115 R)
• M27: 26,588,478 km (0.12 R)
• M28: 27,400,047 km (0.067 R)
• M29: 27,871,130 km (0.083 R)
• M30: 31,965,624 km (0.105 R)
• M31: 33,414,629 km (0.086 R)
• M32: 47,793,977 km (0.052 R)
• M33: 54,910,946 km (0.102 R)
• M34: 58,137,921 km (0.105 R)
• M35: 59,110,607 km (0.059 R)
• M36: 61,891,631 km (0.09 R)
• M37: 70,535,246 km (0.109 R)
• M38: 74,115,423 km (0.192 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 17,992 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit