🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.4

Radius: 9.8

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.71 AU - 0.85 AU

Year: 438 Days

Day: 13.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,614,066 km

• M1: 122,072 km (0.106 R)
• M2: 639,531 km (0.117 R)
• M3: 1,043,595 km (0.106 R)
• M4: 1,418,188 km (0.03 R)
• M5: 1,848,730 km (0.089 R)
• M6: 2,389,377 km (0.096 R)
• M7: 2,882,452 km (0.04 R)
• M8: 3,218,000 km (0.045 R)
• M9: 3,787,220 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.5

Radius: 9.3

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.95 AU - 1.17 AU

Year: 694 Days

Day: 10.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,614,066 km

• M1: 115,639 km (0.072 R)
• M2: 428,000 km (0.086 R)
• M3: 1,065,885 km (0.102 R)
• M4: 1,400,386 km (0.069 R)
• M5: 1,998,628 km (0.094 R)
• M6: 3,051,198 km (0.099 R)
• M7: 3,610,545 km (0.063 R)
• M8: 4,251,123 km (0.108 R)
• M9: 5,351,415 km (0.092 R)
• M10: 5,879,795 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.8

Radius: 13.3

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.9 AU - 1.22 AU

Year: 694 Days

Day: 8.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,614,066 km

• M1: 165,455 km (0.12 R)
• M2: 631,752 km (0.101 R)
• M3: 1,086,081 km (0.115 R)
• M4: 1,909,617 km (0.104 R)
• M5: 2,549,746 km (0.04 R)
• M6: 3,756,103 km (0.085 R)
• M7: 4,818,099 km (0.109 R)
• M8: 5,582,544 km (0.109 R)
• M9: 6,207,713 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.4

Radius: 11.7

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.09 AU - 3.17 AU

Year: 2712 Days

Day: 14.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 79,614,066 km

• M1: 146,008 km (0.11 R)
• M2: 813,513 km (0.036 R)
• M3: 1,415,196 km (0.11 R)
• M4: 1,891,366 km (0.078 R)
• M5: 2,444,130 km (0.075 R)
• M6: 2,865,248 km (0.05 R)
• M7: 3,598,577 km (0.036 R)
• M8: 4,020,592 km (0.092 R)
• M9: 4,386,359 km (0.082 R)
• M10: 4,989,239 km (0.099 R)
• M11: 5,361,588 km (0.112 R)
• M12: 5,887,275 km (0.117 R)
• M13: 7,641,010 km (0.079 R)
• M14: 8,726,343 km (0.079 R)
• M15: 10,184,773 km (0.113 R)
• M16: 10,746,213 km (0.09 R)
• M17: 12,464,345 km (0.113 R)
• M18: 12,967,443 km (0.107 R)
• M19: 14,810,488 km (0.082 R)
• M20: 16,384,108 km (0.1 R)
• M21: 16,766,929 km (0.093 R)
• M22: 17,155,585 km (0.112 R)
• M23: 20,296,841 km (0.087 R)
• M24: 21,251,126 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.1

Radius: 11.7

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.69 AU - 2.75 AU

Year: 2852 Days

Day: 12.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 79,614,066 km

• M1: 175,179 km (0.114 R)
• M2: 736,770 km (0.111 R)
• M3: 1,199,476 km (0.116 R)
• M4: 2,153,461 km (0.09 R)
• M5: 2,771,450 km (0.074 R)
• M6: 3,263,627 km (0.105 R)
• M7: 4,657,281 km (0.099 R)
• M8: 5,100,689 km (0.1 R)
• M9: 7,078,522 km (0.103 R)
• M10: 9,663,723 km (0.064 R)
• M11: 11,070,841 km (0.038 R)
• M12: 12,399,868 km (0.044 R)
• M13: 13,832,567 km (0.068 R)
• M14: 14,472,547 km (0.091 R)
• M15: 15,228,166 km (0.063 R)
• M16: 15,762,679 km (0.106 R)
• M17: 17,180,119 km (0.038 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.3

Radius: 10.8

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.32 AU - 6.14 AU

Year: 7605 Days

Day: 14.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 79,614,066 km

• M1: 136,284 km (0.111 R)
• M2: 633,996 km (0.047 R)
• M3: 1,064,239 km (0.09 R)
• M4: 1,436,289 km (0.075 R)
• M5: 2,022,114 km (0.052 R)
• M6: 2,741,531 km (0.117 R)
• M7: 3,672,628 km (0.064 R)
• M8: 4,514,415 km (0.11 R)
• M9: 5,072,265 km (0.045 R)
• M10: 5,544,845 km (0.088 R)
• M11: 6,578,267 km (0.116 R)
• M12: 7,296,487 km (0.06 R)
• M13: 7,776,397 km (0.07 R)
• M14: 9,114,549 km (0.059 R)
• M15: 10,301,010 km (0.12 R)
• M16: 10,752,497 km (0.113 R)
• M17: 11,966,334 km (0.104 R)
• M18: 12,465,392 km (0.089 R)
• M19: 14,230,198 km (0.055 R)
• M20: 17,745,150 km (0.106 R)
• M21: 18,394,704 km (0.087 R)
• M22: 19,134,914 km (0.12 R)
• M23: 27,282,912 km (0.104 R)
• M24: 27,857,667 km (0.093 R)
• M25: 35,287,894 km (0.099 R)
• M26: 35,856,066 km (0.116 R)
• M27: 36,894,276 km (0.112 R)
• M28: 37,833,750 km (0.071 R)
• M29: 39,394,355 km (0.085 R)
• M30: 41,878,428 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 888.1

Radius: 4.3

Gravity: 48.03 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 10.21 AU - 11.45 AU

Year: 22661 Days

Day: 16.7 Hours

Environment

Temp: -241 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 79,614,066 km

• M1: 53,556 km (0.099 R)
• M2: 652,247 km (0.104 R)
• M3: 1,135,747 km (0.074 R)
• M4: 3,062,268 km (0.086 R)
• M5: 4,508,132 km (0.108 R)
• M6: 4,655,336 km (0.069 R)
• M7: 5,317,456 km (0.063 R)
• M8: 8,998,013 km (0.1 R)
• M9: 9,895,899 km (0.032 R)
• M10: 10,271,240 km (0.05 R)
• M11: 10,851,830 km (0.056 R)
• M12: 12,724,944 km (0.118 R)
• M13: 17,275,562 km (0.08 R)
• M14: 19,812,592 km (0.097 R)
• M15: 22,160,980 km (0.111 R)
• M16: 26,198,626 km (0.119 R)
• M17: 30,568,679 km (0.066 R)
• M18: 32,036,234 km (0.065 R)
• M19: 37,467,385 km (0.094 R)
• M20: 40,399,503 km (0.103 R)
• M21: 47,592,618 km (0.111 R)
• M22: 49,742,339 km (0.101 R)
• M23: 51,025,739 km (0.061 R)
• M24: 63,799,004 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.3

Radius: 3

Gravity: 60.59 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 10.46 AU - 12.04 AU

Year: 23992 Days

Day: 17.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 79,614,066 km

• M1: 39,494 km (0.064 R)
• M2: 212,130 km (0.106 R)
• M3: 1,879,398 km (0.11 R)
• M4: 2,039,019 km (0.109 R)
• M5: 12,154,677 km (0.059 R)
• M6: 14,542,858 km (0.085 R)
• M7: 15,805,913 km (0.093 R)
• M8: 16,715,318 km (0.115 R)
• M9: 17,922,573 km (0.114 R)
• M10: 18,099,697 km (0.032 R)
• M11: 19,558,575 km (0.027 R)
• M12: 22,501,913 km (0.114 R)
• M13: 24,619,770 km (0.119 R)
• M14: 33,608,807 km (0.082 R)
• M15: 34,013,170 km (0.097 R)
• M16: 40,021,470 km (0.075 R)
• M17: 45,373,932 km (0.099 R)
• M18: 49,600,520 km (0.072 R)
• M19: 62,002,782 km (0.096 R)
• M20: 63,428,001 km (0.116 R)
• M21: 77,484,816 km (0.119 R)
• M22: 79,137,573 km (0.114 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 16,376 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit