🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.8

Radius: 14.3

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.9 AU - 0.98 AU

Year: 618 Days

Day: 14.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,173,741 km

• M1: 177,872 km (0.113 R)
• M2: 698,921 km (0.111 R)
• M3: 1,152,502 km (0.11 R)
• M4: 1,866,533 km (0.064 R)
• M5: 2,376,961 km (0.111 R)
• M6: 3,291,602 km (0.112 R)
• M7: 4,033,159 km (0.117 R)
• M8: 4,704,703 km (0.111 R)
• M9: 5,336,605 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.7

Radius: 13.9

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.02 AU - 1.08 AU

Year: 730 Days

Day: 8.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,173,741 km

• M1: 172,935 km (0.054 R)
• M2: 645,814 km (0.061 R)
• M3: 1,155,494 km (0.111 R)
• M4: 1,647,521 km (0.093 R)
• M5: 2,163,484 km (0.068 R)
• M6: 2,607,042 km (0.088 R)
• M7: 3,435,515 km (0.04 R)
• M8: 4,167,049 km (0.119 R)
• M9: 7,088,097 km (0.106 R)
• M10: 8,525,283 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.5

Radius: 11.1

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.27 AU - 1.67 AU

Year: 1209 Days

Day: 8.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,173,741 km

• M1: 140,472 km (0.068 R)
• M2: 536,757 km (0.1 R)
• M3: 1,031,477 km (0.089 R)
• M4: 1,511,686 km (0.114 R)
• M5: 1,957,638 km (0.096 R)
• M6: 3,038,482 km (0.081 R)
• M7: 3,442,397 km (0.099 R)
• M8: 3,788,117 km (0.115 R)
• M9: 4,930,746 km (0.058 R)
• M10: 6,422,985 km (0.106 R)
• M11: 7,164,392 km (0.075 R)
• M12: 8,117,928 km (0.095 R)
• M13: 9,012,823 km (0.096 R)
• M14: 9,411,800 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.6

Radius: 10.8

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.65 AU - 2.69 AU

Year: 2168 Days

Day: 15 Hours

Environment

Temp: -198 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,173,741 km

• M1: 134,339 km (0.081 R)
• M2: 547,079 km (0.067 R)
• M3: 978,819 km (0.078 R)
• M4: 1,737,579 km (0.1 R)
• M5: 2,515,638 km (0.061 R)
• M6: 3,695,516 km (0.084 R)
• M7: 4,269,822 km (0.105 R)
• M8: 5,094,705 km (0.109 R)
• M9: 6,000,670 km (0.067 R)
• M10: 7,108,143 km (0.097 R)
• M11: 7,814,245 km (0.113 R)
• M12: 8,211,427 km (0.11 R)
• M13: 8,566,572 km (0.119 R)
• M14: 10,277,823 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.5

Radius: 14.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.29 AU - 2.45 AU

Year: 2475 Days

Day: 11.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,173,741 km

• M1: 176,675 km (0.083 R)
• M2: 619,036 km (0.118 R)
• M3: 1,177,934 km (0.095 R)
• M4: 1,880,744 km (0.065 R)
• M5: 2,504,717 km (0.086 R)
• M6: 3,524,675 km (0.09 R)
• M7: 4,227,935 km (0.051 R)
• M8: 5,185,960 km (0.074 R)
• M9: 6,593,975 km (0.117 R)
• M10: 7,479,295 km (0.096 R)
• M11: 8,586,918 km (0.102 R)
• M12: 9,580,696 km (0.11 R)
• M13: 12,719,858 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758

Radius: 9.1

Gravity: 9.15 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.86 AU - 2.9 AU

Year: 2490 Days

Day: 13.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,173,741 km

• M1: 113,246 km (0.1 R)
• M2: 472,131 km (0.118 R)
• M3: 820,694 km (0.054 R)
• M4: 1,343,239 km (0.088 R)
• M5: 2,191,010 km (0.105 R)
• M6: 3,219,795 km (0.096 R)
• M7: 3,880,868 km (0.082 R)
• M8: 6,578,716 km (0.114 R)
• M9: 7,610,193 km (0.109 R)
• M10: 8,814,157 km (0.067 R)
• M11: 9,407,911 km (0.098 R)
• M12: 10,597,962 km (0.082 R)
• M13: 12,308,165 km (0.114 R)
• M14: 13,094,750 km (0.093 R)
• M15: 13,591,715 km (0.098 R)
• M16: 14,864,792 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.8

Radius: 9.6

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.26 AU - 3.6 AU

Year: 4309 Days

Day: 5.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,173,741 km

• M1: 119,379 km (0.118 R)
• M2: 439,818 km (0.12 R)
• M3: 739,313 km (0.092 R)
• M4: 1,133,653 km (0.113 R)
• M5: 2,432,013 km (0.094 R)
• M6: 3,414,422 km (0.111 R)
• M7: 3,769,268 km (0.073 R)
• M8: 4,189,937 km (0.06 R)
• M9: 4,731,481 km (0.087 R)
• M10: 5,031,276 km (0.079 R)
• M11: 5,669,011 km (0.059 R)
• M12: 6,114,514 km (0.109 R)
• M13: 6,611,627 km (0.102 R)
• M14: 7,075,830 km (0.118 R)
• M15: 7,499,790 km (0.111 R)
• M16: 7,812,898 km (0.089 R)
• M17: 8,943,559 km (0.089 R)
• M18: 9,584,736 km (0.065 R)
• M19: 10,958,493 km (0.12 R)
• M20: 12,329,258 km (0.064 R)
• M21: 12,810,514 km (0.099 R)
• M22: 13,857,550 km (0.113 R)
• M23: 16,328,907 km (0.102 R)
• M24: 17,778,809 km (0.097 R)
• M25: 20,022,179 km (0.046 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.7

Radius: 5.3

Gravity: 27.86 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 7.09 AU - 9.75 AU

Year: 16571 Days

Day: 20.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 70,173,741 km

• M1: 67,469 km (0.097 R)
• M2: 284,086 km (0.047 R)
• M3: 454,628 km (0.112 R)
• M4: 1,256,024 km (0.055 R)
• M5: 1,638,097 km (0.081 R)
• M6: 1,958,835 km (0.085 R)
• M7: 3,175,963 km (0.047 R)
• M8: 3,675,021 km (0.086 R)
• M9: 4,620,480 km (0.089 R)
• M10: 4,862,529 km (0.101 R)
• M11: 5,040,551 km (0.053 R)
• M12: 6,202,328 km (0.052 R)
• M13: 7,344,657 km (0.026 R)
• M14: 7,965,488 km (0.112 R)
• M15: 8,776,907 km (0.096 R)
• M16: 11,922,053 km (0.052 R)
• M17: 13,886,722 km (0.095 R)
• M18: 14,318,611 km (0.059 R)
• M19: 18,358,202 km (0.086 R)
• M20: 20,590,352 km (0.089 R)
• M21: 21,151,793 km (0.104 R)
• M22: 22,599,900 km (0.099 R)
• M23: 23,805,060 km (0.043 R)
• M24: 24,527,468 km (0.115 R)
• M25: 27,451,359 km (0.107 R)
• M26: 28,475,356 km (0.115 R)
• M27: 28,822,274 km (0.107 R)
• M28: 29,289,169 km (0.111 R)
• M29: 32,448,077 km (0.117 R)
• M30: 56,457,638 km (0.056 R)
• M31: 56,822,208 km (0.068 R)
• M32: 57,005,166 km (0.077 R)
• M33: 57,925,492 km (0.11 R)
• M34: 58,668,844 km (0.116 R)
• M35: 60,364,686 km (0.085 R)
• M36: 64,249,593 km (0.063 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 270 - 16,492 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit