🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.9

Radius: 13.7

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.6 AU - 0.62 AU

Year: 329 Days

Day: 11.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,989,898 km

• M1: 170,392 km (0.05 R)
• M2: 813,513 km (0.079 R)
• M3: 1,349,822 km (0.111 R)
• M4: 1,873,564 km (0.103 R)
• M5: 2,348,836 km (0.113 R)
• M6: 2,860,012 km (0.104 R)
• M7: 3,344,111 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215

Radius: 11.8

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.76 AU - 0.9 AU

Year: 522 Days

Day: 13.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,989,898 km

• M1: 146,756 km (0.066 R)
• M2: 589,416 km (0.049 R)
• M3: 1,196,035 km (0.05 R)
• M4: 2,041,562 km (0.111 R)
• M5: 2,452,059 km (0.073 R)
• M6: 3,036,089 km (0.071 R)
• M7: 4,457,717 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232

Radius: 13.7

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.91 AU - 1.01 AU

Year: 649 Days

Day: 10 Hours

Environment

Temp: -172 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,989,898 km

• M1: 170,392 km (0.108 R)
• M2: 640,428 km (0.07 R)
• M3: 1,374,356 km (0.042 R)
• M4: 1,963,173 km (0.047 R)
• M5: 2,437,847 km (0.079 R)
• M6: 3,073,488 km (0.081 R)
• M7: 4,253,815 km (0.104 R)
• M8: 5,059,849 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955

Radius: 11.1

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.3 AU - 1.74 AU

Year: 1294 Days

Day: 8.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,989,898 km

• M1: 138,079 km (0.081 R)
• M2: 489,634 km (0.111 R)
• M3: 1,086,230 km (0.075 R)
• M4: 1,432,100 km (0.096 R)
• M5: 2,156,453 km (0.069 R)
• M6: 2,936,756 km (0.119 R)
• M7: 4,344,921 km (0.07 R)
• M8: 5,699,080 km (0.071 R)
• M9: 6,721,582 km (0.084 R)
• M10: 7,806,466 km (0.056 R)
• M11: 8,731,579 km (0.05 R)
• M12: 10,154,105 km (0.104 R)
• M13: 10,938,148 km (0.054 R)
• M14: 11,688,830 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.6

Radius: 13.6

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.35 AU - 4.15 AU

Year: 5013 Days

Day: 12.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,989,898 km

• M1: 171,888 km (0.119 R)
• M2: 765,792 km (0.1 R)
• M3: 1,362,837 km (0.086 R)
• M4: 4,717,868 km (0.118 R)
• M5: 5,522,555 km (0.094 R)
• M6: 6,196,793 km (0.05 R)
• M7: 6,821,663 km (0.065 R)
• M8: 8,920,970 km (0.075 R)
• M9: 9,984,311 km (0.052 R)
• M10: 11,058,574 km (0.09 R)
• M11: 13,273,669 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 842.5

Radius: 7

Gravity: 17.19 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 5.17 AU - 6.21 AU

Year: 9369 Days

Day: 18.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,989,898 km

• M1: 87,066 km (0.074 R)
• M2: 311,612 km (0.08 R)
• M3: 631,453 km (0.067 R)
• M4: 1,438,982 km (0.107 R)
• M5: 1,756,578 km (0.091 R)
• M6: 2,717,146 km (0.107 R)
• M7: 3,697,760 km (0.092 R)
• M8: 6,446,172 km (0.113 R)
• M9: 10,426,373 km (0.089 R)
• M10: 15,452,712 km (0.116 R)
• M11: 16,922,960 km (0.12 R)
• M12: 18,560,757 km (0.092 R)
• M13: 18,947,318 km (0.113 R)
• M14: 21,719,068 km (0.104 R)
• M15: 27,950,417 km (0.094 R)
• M16: 29,179,513 km (0.113 R)
• M17: 30,337,551 km (0.101 R)
• M18: 31,745,117 km (0.085 R)
• M19: 40,986,077 km (0.096 R)
• M20: 47,281,903 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 131.1

Radius: 5.2

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.03 AU - 7.81 AU

Year: 11228 Days

Day: 23.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,989,898 km

• M1: 65,075 km (0.085 R)
• M2: 502,499 km (0.097 R)
• M3: 677,230 km (0.091 R)
• M4: 1,804,001 km (0.117 R)
• M5: 4,037,796 km (0.109 R)
• M6: 6,923,539 km (0.058 R)
• M7: 9,974,588 km (0.051 R)
• M8: 11,271,452 km (0.095 R)
• M9: 13,395,442 km (0.08 R)
• M10: 16,362,566 km (0.064 R)
• M11: 17,902,976 km (0.086 R)
• M12: 18,286,545 km (0.092 R)
• M13: 19,740,187 km (0.066 R)
• M14: 23,402,642 km (0.083 R)
• M15: 23,707,822 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773.7

Radius: 3.6

Gravity: 59.7 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 8.51 AU - 11.25 AU

Year: 21436 Days

Day: 18.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 82,989,898 km

• M1: 44,730 km (0.042 R)
• M2: 324,777 km (0.104 R)
• M3: 769,831 km (0.116 R)
• M4: 989,590 km (0.118 R)
• M5: 1,403,976 km (0.114 R)
• M6: 1,924,726 km (0.117 R)
• M7: 2,329,388 km (0.063 R)
• M8: 3,570,602 km (0.103 R)
• M9: 4,560,341 km (0.101 R)
• M10: 5,393,153 km (0.115 R)
• M11: 5,803,350 km (0.081 R)
• M12: 7,653,577 km (0.12 R)
• M13: 7,857,927 km (0.111 R)
• M14: 13,178,376 km (0.088 R)
• M15: 14,533,433 km (0.109 R)
• M16: 16,907,252 km (0.119 R)
• M17: 18,140,687 km (0.12 R)
• M18: 18,964,522 km (0.1 R)
• M19: 21,082,678 km (0.091 R)
• M20: 24,547,515 km (0.066 R)
• M21: 25,215,619 km (0.048 R)
• M22: 25,328,266 km (0.05 R)
• M23: 26,240,663 km (0.104 R)
• M24: 27,530,646 km (0.086 R)
• M25: 28,251,857 km (0.112 R)
• M26: 32,444,637 km (0.052 R)
• M27: 37,179,110 km (0.089 R)
• M28: 41,564,272 km (0.054 R)
• M29: 44,616,817 km (0.109 R)
• M30: 46,959,370 km (0.116 R)
• M31: 50,089,855 km (0.096 R)
• M32: 52,802,513 km (0.103 R)
• M33: 59,909,160 km (0.09 R)
• M34: 68,718,081 km (0.086 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: 478 - 12,042 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit