🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.3

Radius: 14.2

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.77 AU - 1.05 AU

Year: 561 Days

Day: 7 Hours

Environment

Temp: -147 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 58,708,356 km

• M1: 176,675 km (0.112 R)
• M2: 924,216 km (0.049 R)
• M3: 1,824,496 km (0.06 R)
• M4: 2,322,657 km (0.079 R)
• M5: 2,954,857 km (0.064 R)
• M6: 3,478,749 km (0.082 R)
• M7: 5,258,066 km (0.072 R)
• M8: 5,998,127 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.3

Radius: 12.2

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.83 AU - 1.03 AU

Year: 579 Days

Day: 10.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,708,356 km

• M1: 151,692 km (0.114 R)
• M2: 568,921 km (0.109 R)
• M3: 1,088,175 km (0.103 R)
• M4: 1,609,075 km (0.063 R)
• M5: 2,028,098 km (0.086 R)
• M6: 2,584,752 km (0.06 R)
• M7: 3,216,653 km (0.113 R)
• M8: 4,022,687 km (0.076 R)
• M9: 4,402,965 km (0.047 R)
• M10: 4,941,966 km (0.052 R)
• M11: 5,804,397 km (0.089 R)
• M12: 7,781,632 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.8

Radius: 9.5

Gravity: 10.11 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.92 AU - 1.16 AU

Year: 685 Days

Day: 8.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,708,356 km

• M1: 118,182 km (0.079 R)
• M2: 466,596 km (0.108 R)
• M3: 782,098 km (0.104 R)
• M4: 1,187,508 km (0.081 R)
• M5: 1,639,742 km (0.075 R)
• M6: 1,953,000 km (0.105 R)
• M7: 2,275,533 km (0.104 R)
• M8: 2,588,492 km (0.075 R)
• M9: 3,342,316 km (0.09 R)
• M10: 4,868,513 km (0.108 R)
• M11: 5,189,401 km (0.103 R)
• M12: 6,034,030 km (0.108 R)
• M13: 7,057,130 km (0.03 R)
• M14: 8,724,697 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.4

Radius: 12.1

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.83 AU - 1.89 AU

Year: 1638 Days

Day: 13 Hours

Environment

Temp: -191 °C

Axial Tilt: 170.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,708,356 km

• M1: 150,944 km (0.097 R)
• M2: 540,198 km (0.101 R)
• M3: 1,055,563 km (0.085 R)
• M4: 1,885,980 km (0.101 R)
• M5: 2,400,148 km (0.079 R)
• M6: 2,874,972 km (0.078 R)
• M7: 3,477,851 km (0.07 R)
• M8: 4,589,214 km (0.099 R)
• M9: 5,065,085 km (0.115 R)
• M10: 6,140,993 km (0.063 R)
• M11: 6,877,463 km (0.069 R)
• M12: 7,308,305 km (0.094 R)
• M13: 8,224,741 km (0.108 R)
• M14: 10,600,954 km (0.088 R)
• M15: 11,250,807 km (0.051 R)
• M16: 11,698,853 km (0.058 R)
• M17: 12,081,075 km (0.102 R)
• M18: 12,471,825 km (0.116 R)
• M19: 13,485,799 km (0.114 R)
• M20: 14,077,160 km (0.055 R)
• M21: 14,597,611 km (0.098 R)
• M22: 15,086,048 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.1

Radius: 13.6

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.81 AU - 2.41 AU

Year: 1979 Days

Day: 11.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,708,356 km

• M1: 169,195 km (0.074 R)
• M2: 638,035 km (0.091 R)
• M3: 1,286,841 km (0.115 R)
• M4: 2,608,538 km (0.066 R)
• M5: 3,100,416 km (0.094 R)
• M6: 3,834,493 km (0.053 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 32.1

Radius: 4.7

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 7.64 AU - 10.02 AU

Year: 16942 Days

Day: 18 Hours

Environment

Temp: -231 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,708,356 km

• M1: 58,493 km (0.085 R)
• M2: 1,747,004 km (0.09 R)
• M3: 5,592,268 km (0.048 R)
• M4: 6,541,466 km (0.097 R)
• M5: 8,790,371 km (0.063 R)
• M6: 14,322,201 km (0.09 R)
• M7: 16,811,809 km (0.045 R)
• M8: 20,085,160 km (0.114 R)
• M9: 23,047,646 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 574.4

Radius: 5

Gravity: 22.98 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 9.59 AU - 10.81 AU

Year: 21034 Days

Day: 16.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 58,708,356 km

• M1: 62,981 km (0.027 R)
• M2: 221,405 km (0.113 R)
• M3: 501,751 km (0.103 R)
• M4: 748,737 km (0.114 R)
• M5: 1,395,599 km (0.114 R)
• M6: 1,870,422 km (0.075 R)
• M7: 2,446,374 km (0.087 R)
• M8: 3,435,515 km (0.117 R)
• M9: 3,971,973 km (0.119 R)
• M10: 4,130,397 km (0.118 R)
• M11: 4,562,436 km (0.109 R)
• M12: 11,932,225 km (0.115 R)
• M13: 12,600,180 km (0.066 R)
• M14: 14,156,895 km (0.087 R)
• M15: 19,497,689 km (0.092 R)
• M16: 19,956,655 km (0.115 R)
• M17: 20,992,022 km (0.083 R)
• M18: 21,865,374 km (0.089 R)
• M19: 24,101,563 km (0.069 R)
• M20: 26,374,254 km (0.086 R)
• M21: 31,090,626 km (0.042 R)
• M22: 33,384,859 km (0.109 R)
• M23: 40,493,750 km (0.104 R)
• M24: 52,505,113 km (0.069 R)
• M25: 57,044,510 km (0.099 R)
• M26: 59,122,126 km (0.07 R)
• M27: 59,313,461 km (0.119 R)
• M28: 60,664,480 km (0.111 R)
• M29: 62,233,462 km (0.099 R)
• M30: 65,861,959 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 257.1

Radius: 7.9

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 8.25 AU - 12.85 AU

Year: 22126 Days

Day: 15.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,708,356 km

• M1: 98,286 km (0.061 R)
• M2: 434,432 km (0.114 R)
• M3: 2,321,460 km (0.11 R)
• M4: 3,521,683 km (0.031 R)
• M5: 6,067,540 km (0.091 R)
• M6: 8,627,908 km (0.107 R)
• M7: 9,638,292 km (0.104 R)
• M8: 9,956,337 km (0.083 R)
• M9: 11,298,828 km (0.095 R)
• M10: 12,135,529 km (0.075 R)
• M11: 14,338,806 km (0.086 R)
• M12: 18,365,083 km (0.06 R)
• M13: 18,854,268 km (0.062 R)
• M14: 31,709,812 km (0.051 R)
• M15: 36,219,440 km (0.104 R)
• M16: 36,474,654 km (0.087 R)
• M17: 45,737,305 km (0.078 R)
• M18: 54,588,861 km (0.04 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 14,279 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit